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RRB JE CE (CBT II) Mock Test- 3


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150 Questions MCQ Test RRB JE Mock Test Series for Civil Engineering (CE) | RRB JE CE (CBT II) Mock Test- 3

RRB JE CE (CBT II) Mock Test- 3 for Railways 2023 is part of RRB JE Mock Test Series for Civil Engineering (CE) preparation. The RRB JE CE (CBT II) Mock Test- 3 questions and answers have been prepared according to the Railways exam syllabus.The RRB JE CE (CBT II) Mock Test- 3 MCQs are made for Railways 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for RRB JE CE (CBT II) Mock Test- 3 below.
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RRB JE CE (CBT II) Mock Test- 3 - Question 1

Which of the following rebellion / agitation did NOT happen in the area of Bengal?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 1 Baghera Rebellion did NOT happen in the area of Bengal.
RRB JE CE (CBT II) Mock Test- 3 - Question 2

Who gave the title of Raja to Ranjit Singh?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 2 Zaman Shah gave the title of Raja to Ranjit Singh.
RRB JE CE (CBT II) Mock Test- 3 - Question 3

Which of the following were NOT related to the Congress Socialist Party?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 3 The Socialist Party was founded not long after India's independence when Jayprakash Narayan, Basawon Sinha, Acharya Narendra Dev led the CSP out of Congress.
RRB JE CE (CBT II) Mock Test- 3 - Question 4

Salt March, also known as Dandi March, was initiated by ________.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 4 The Salt March, also known as the Dandi March and the Dandi Satyagraha, was an act of nonviolent civil disobedience in colonial India led by Mohandas Karamchand Gandhi to produce salt from the seawater in the coastal village of Dandi.
RRB JE CE (CBT II) Mock Test- 3 - Question 5

E.V. Ramaswamy Naicker is associated with which of the following movements?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 5 Erode Venkatappa Ramasamy, commonly known as Periyar, also referred to as Thanthai Periyar, was an Indian social activist and politician who started the Self-Respect Movement and Dravidar Kazhagam. He is known as the 'Father of modern Tamilnadu.’ He has done exemplary works against Brahminical dominance, caste prevalence, and women’s oppression in Tamilnadu.
RRB JE CE (CBT II) Mock Test- 3 - Question 6

In which year did Vivekananda participate in the Parliament of the World's Religions?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 6 Swami Vivekananda at the Parliament of the World's Religions (1893) Swami Vivekananda represented India and Hinduism at the Parliament of the World's Religions (1893). This was the first World's Parliament of Religions and it was held from 11 to 27 September 1893.
RRB JE CE (CBT II) Mock Test- 3 - Question 7

When was Guru Nanak Dev born?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 7 Sri Guru Nanak Dev was born in 1469 in Talwandi, a village in the Sheikhupura district, 65 kms. west of Lahore. His father was a village official in the local revenue administration. As a boy, Sri Guru Nanak learnt, besides the regional languages, Persian and Arabic.
RRB JE CE (CBT II) Mock Test- 3 - Question 8

Which ruler of the Vijayanagar Empire was the friend of the Portuguese Governor Albuquerque?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 8 Afonso de Albuquerque was the second governor of Portuguese India and is known as the founder of the Portuguese colonial empire in India. Krishna Deva Rai was the friend of Portuguese Governor Albuquerque.
RRB JE CE (CBT II) Mock Test- 3 - Question 9

Which of the following Harappan sites was not located in Gujarat?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 9 Daimabad is a deserted village and an archaeological site on the left bank of the Pravara River, a tributary of the Godavari River in Shrirampur taluka in Ahmednagar district of Maharashtra state in India. This site was discovered by B. P. Bopardikar in 1958.
RRB JE CE (CBT II) Mock Test- 3 - Question 10

Where did Lord Buddha deliver his first sermon?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 10 At Sarnath near Varanasi, Lord Buddha delivered his first sermon. In the Buddha’s first sermon at Deer Park, he taught the Four Noble Truths by addressing the existence of suffering, its cause, and its end.
RRB JE CE (CBT II) Mock Test- 3 - Question 11

In which of the following regions is midnight Sun visible?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 11 The midnight sun is a natural phenomenon in the summer months in places north of the Arctic Circle or south of the Antarctic Circle when the sun remains visible at the local midnight.
RRB JE CE (CBT II) Mock Test- 3 - Question 12

The Equator does NOT pass through which of the following countries?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 12 The equator passes through 13 countries: Ecuador, Colombia, Brazil, Sao Tome & Principe, Gabon, Republic of the Congo, the Democratic Republic of the Congo, Uganda, Kenya, Somalia, Maldives, Indonesia, and Kiribati.
RRB JE CE (CBT II) Mock Test- 3 - Question 13

An earthquake of magnitude 6 on the Richter scale has ______________ times more destructive energy than an earthquake of magnitude 4.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 13 The original Richter scale, 4 to 6 or from 5 to 7, corresponds to about 1000 times the energy release.
RRB JE CE (CBT II) Mock Test- 3 - Question 14

Which of the following is NOT correctly matched?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 14 Metamorphic rocks are the rocks formed from other rocks. They are sedimentary or igneous rocks that have undergone changes as a result of extreme pressure and heat. Marble is produced by the metamorphism of Limestone. Basalt is produced by the metamorphism Granite. Serpentine is produced by the metamorphism of Gabbro. But Conglomerate is a coarse-grained clastic sedimentary rock.
RRB JE CE (CBT II) Mock Test- 3 - Question 15

The area under a Velocity-Time graph represents ______________.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 15 The area under a Velocity-Time graph represents displacement.
RRB JE CE (CBT II) Mock Test- 3 - Question 16

A body of mass 18 kg is moving with a velocity of 6 m/s, find its momentum.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 16 We know that

Momentum (p) = Mass (m)× Velocity(v)

=18×6

=108 Kg.m/sec2.

RRB JE CE (CBT II) Mock Test- 3 - Question 17

The SI unit of G, the universal gravitation constant is ______________.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 17 SI unit of G =Nm2kg-2.
RRB JE CE (CBT II) Mock Test- 3 - Question 18

Quantitatively, the inertia of an object is measured by ______________.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 18 Inertia is the resistance, of any physical object, to any change in its velocity. This includes changes to the object's speed, or direction of motion. Mass was the quantitative measure of inertia of a body.
RRB JE CE (CBT II) Mock Test- 3 - Question 19

The instrument that measures the wind speed is called __________________.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 19 An anemometer is an instrument used to measure the speed or velocity of air (gases) either in a contained flow, such as airflow in a duct, or in unconfined flows, such as atmospheric wind.
RRB JE CE (CBT II) Mock Test- 3 - Question 20

Any body kept in a fluid experiences an upward force called _____________.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 20 The upward force exerted by the water on the bottle is known as upthrust or buoyant force. In fact, all objects experience a force of buoyancy when they are immersed in a fluid.
RRB JE CE (CBT II) Mock Test- 3 - Question 21

Unequal top and bottom reinforcement in a reinforcement concrete section loads to-

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 21 The shrinkage deflection depends on the relative amount of tension and compression reinforcement.
RRB JE CE (CBT II) Mock Test- 3 - Question 22

1 watt is equal to 1 ____________.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 22 1 Watt is defined as 1 Joule per second.
RRB JE CE (CBT II) Mock Test- 3 - Question 23

In which of the following solution the concentration of H+ ion is the maximum?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 23 In pH 5 Solution the concentration of H+ ion is the maximum.
RRB JE CE (CBT II) Mock Test- 3 - Question 24

Who formulated ‘the atomic theory’ of a matter?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 24 John Dalton propounded the atomic theory in 1803.
RRB JE CE (CBT II) Mock Test- 3 - Question 25

Which of the following type of medicine is used for treating indigestion?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 25 Antacids are usually the first drugs recommended to relieve symptoms of indigestion.
RRB JE CE (CBT II) Mock Test- 3 - Question 26

Which of the following statement(s) is/are INCORRECT?

I. Alkenes are fairly unreactive.

II. Alkenes burn with blue flame.

III. Alkanes burn with yellow flame.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 26 Alkenes are more reactive due to the properties of the carbon-carbon bond. When alkenes are burnt in an atmosphere that is rich in oxygen and if the temperature is high enough, the alkenes burn giving CO2 and H2O. Alkenes do not burn with blue flame and Alkanes do not burn with yellow flame.
RRB JE CE (CBT II) Mock Test- 3 - Question 27

Valency of an element depends on which of the following?

I. Number of losing an electron

II. Number of gaining an electron

III. Number of sharing electron

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 27 The number of electrons within the outer shell of the element determines its valency. To calculate the valency of an element(or molecule, for that matter), there are multiple methods. The valency of an atom is equal to the number of electrons in the outer shell if that number is four or less. So all the above statement are correct.
RRB JE CE (CBT II) Mock Test- 3 - Question 28

Which of the following statement(s) is/are CORRECT?

I. Oils containing unsaturated fatty acids should be used for cooking.

II Animal fats have saturated carbon chains.

III. Saturated fatty acids are generally harmful for health.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 28 Oils are unsaturated carbon compounds. So they have double or triple bonds. Double and triple bonds are easy to be digested or to be broken. Unsaturated fatty acids (vegetable oils) are 'healthy.’ Animal fats generally contain saturated fatty acids, which are said to be harmful for health. Oils containing unsaturated fatty acids should be chosen for cooking.
RRB JE CE (CBT II) Mock Test- 3 - Question 29

Bohr’s model is related to which of the following?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 29 In 1913, Bohr proposed his quantized shell model to explain how electrons can have stable orbits around the nucleus. The energy of an electron depends on the size of the orbit and is lower for smaller orbits. Radiation can occur only when the electron jumps from one orbit to another.
RRB JE CE (CBT II) Mock Test- 3 - Question 30

Which among the following awards instituted by the Government of India for individuals or communities from rural areas that have shown extraordinary courage and dedication in protecting Wildlife?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 30 The Amrita Bishnoi award is given for significant contribution in the field of wildlife protection, which is recognised as having shown exemplary courage and valour or having done exemplary work for the protection of wildlife in the Country. Individual and scommunity-based organizations, from rural areas, including Gram Sabha, showing exemplary courage or valour for protecting wildlife will be eligible for this award.
RRB JE CE (CBT II) Mock Test- 3 - Question 31

Which among the following is key faunal species that is being conserved and monitored in ‘Dachigam National Park’?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 31 Dachigam National Park is located 22 kilometers from Srinagar, Jammu and Kashmir. It covers an area of 500 km2. The name of the park literally stands for "ten villages," which could be in memory of the ten villages that were relocated for its formation. The main animal species that Dachigam is known for is the hangul or the Kashmir stag.
RRB JE CE (CBT II) Mock Test- 3 - Question 32

The ‘thickness’ of the Stratospheric Ozone layer is measured in/on:

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 32 The Dobson Unit is the most common unit for measuring ozone concentration. One Dobson Unit is the number of molecules of ozone that would be required to create a layer of pure ozone 0.01 millimeters thick at a temperature of 0 degrees Celsius and a pressure of 1 atmosphere (the air pressure at the surface of the Earth).
RRB JE CE (CBT II) Mock Test- 3 - Question 33

Which among the following is the most abundant Green-House-Gas(GHG) in the earth’s atmosphere?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 33 Water vapor is the most abundant greenhouse gas in the atmosphere. The increase in water vapor concentrations may be the result of climate feedbacks that are related to the warming of the atmosphere.
RRB JE CE (CBT II) Mock Test- 3 - Question 34

Which one of the following is a useful biological indicator of Sulphur-dioxide pollution?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 34 Lichens can be used as air pollution indicators, especially of the concentration of sulfur dioxide since they derive their water and essential nutrients mainly from the atmosphere rather than from the soil. Lichens are plants that grow in exposed places such as rocks or tree bark.
RRB JE CE (CBT II) Mock Test- 3 - Question 35

The relationship between water fern Azolla and cyanobacterium Anabaena is:

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 35 Azolla and the blue-green alga Anabaena azollae maintain a symbiotic relationship: the alga provides nitrogen to the fern, and the fern provides a habitat for the alga.
RRB JE CE (CBT II) Mock Test- 3 - Question 36

Which of the following is not among the four coral reef regions of India identified by the Government for intensive conservation and management?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 36 The Mangroves and Coral Reef areas are ecologically sensitive and they require protection of the highest order. The India reef area is estimated at 2375 sq. km. Four Coral Reef sites have been identified for intensive conservation and management since 1987: Andaman and Nicobar Islands, Lakshadweep Islands, Gulf of Kutch (Gujarat), Gulf of Mannar (Tamil Nadu).
RRB JE CE (CBT II) Mock Test- 3 - Question 37

In an ecotone, the species which become abundant are called:

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 37 An ecotone is a transition area between two biomes but different patches of the landscape, such as forest and grassland. This can produce an edge effect along the boundary line, with the area displaying a greater than usual diversity of species. The phenomenon of increased variety of plants as well as animals at the community junction is called the “edge effect” and is essentially due to a locally broader range of suitable environmental conditions or ecological niches.
RRB JE CE (CBT II) Mock Test- 3 - Question 38

The Siberian Crane, an endangered migratory bird is a regular visitor of which of the following national park/bird sanctuaries:

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 38 Formerly known as the Bharatpur Bird Sanctuary, the Keoladeo National Park lies between two of India's most historic cities, Agra and Jaipur. It was declared a national park in 1982 and then later tagged as a World Heritage Site by UNESCO in 1985. The park is home to over 370 species of birds and animals such as the basking python, painted storks, deer, Nilgai and more. It is mainly known for migrated Siberian cranes.
RRB JE CE (CBT II) Mock Test- 3 - Question 39

The largest number of Tiger Reserves are located in :

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 39 The largest numbers of Tiger Reserves are located in Madhya Pradesh.
RRB JE CE (CBT II) Mock Test- 3 - Question 40

Himalayan mountain range falls under which type of mountains?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 40 Fold Mountains are created where two or more of Earth’s tectonic plates are pushed together. At these colliding, compressing boundaries, rocks and debris are warped and folded into rocky outcrops, hills, mountains, and entire mountain ranges. Himalayan mountain range falls under this type of mountain.
RRB JE CE (CBT II) Mock Test- 3 - Question 41

The CPU comprises of Control Memory, and ………………… Units.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 41 The CPU (central processing unit) is the brains of the computer where most calculations take place.

Control unit and arithmetic logic unit is two main components of CPU.

RRB JE CE (CBT II) Mock Test- 3 - Question 42

Moves the cursor one space to the right or puts spaces in between words ………………….

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 42 Spacebar key is used to puts space in between two words.
RRB JE CE (CBT II) Mock Test- 3 - Question 43

Which of the following memory chip is faster?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 43 Static random access memory (SRAM) is a The spacebarfaster and more reliable memory than the more common DRAM (dynamic RAM). The term static is derived from the fact that it doesn't need to be refreshed like dynamic RAM.
RRB JE CE (CBT II) Mock Test- 3 - Question 44

Which of the following is a graphic presentation of the sequence of steps needed to solve a programming problem?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 44 Program flowchart is a diagram which uses a set of standard graphic symbols to represent the sequence of coded instructions fed into a computer, enabling it to perform specified logical and arithmetical operations.
RRB JE CE (CBT II) Mock Test- 3 - Question 45

Computer programs are written in a high level programming language, however the human readable version of a program is called—

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 45 Source code is the fundamental component of a computer program that is created by a programmer. It can be read and easily understood by a human being.
RRB JE CE (CBT II) Mock Test- 3 - Question 46

Computer language COBOL is appropriate for—

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 46 COBOL(Common Business Oriented Language) is a programming language that reads like regular English and is often used for business and administrative purposes.
RRB JE CE (CBT II) Mock Test- 3 - Question 47

The function of an assembler is …………….

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 47 An assembler is a type of computer program that interprets software programs written in assembly language into machine language, code and instructions that can be executed by a computer.
RRB JE CE (CBT II) Mock Test- 3 - Question 48

Pick the odd man out.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 48 all of these are type of operating system, except MS Access. It is a database.
RRB JE CE (CBT II) Mock Test- 3 - Question 49

Which of the following is the most important/powerful computer in a typical network?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 49 A network server is a computer system, which is used as the central repository of data and various programs that are shared by users in a network.
RRB JE CE (CBT II) Mock Test- 3 - Question 50

What is an alternate name for the completely interconnected network topology?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 50 A mesh topology is a network topology in which all the network nodes are individually connected to most of the other nodes.
RRB JE CE (CBT II) Mock Test- 3 - Question 51

A bond in a brick work when headers and stretchers are placed in alternate layers is called

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 51 The most commonly used types of bonds in brick masonry are:
  1. Stretcher bond

  2. Header bond

  3. English bond and

  4. Flemish bond

English bond in brick masonry has one course of stretcher only and a course of header above it, i.e. it has two alternating courses of stretchers and headers. Headers are laid cantered on the stretchers below, and each alternate row is vertically aligned.

Flemish bond, also known as Dutch bond, is created by laying alternate headers and stretchers in a single course. The next course of brick is laid such that header lies in the middle of the stretcher in the course below, i.e. the alternate headers of each course are centered on the stretcher of course below. Thus, every alternate course of Flemish bond starts with the header at the corner.

Flemish bonds are classified as:

  • Single Flemish Bond

  • Double Flemish Bond

A header bond is also known as a heading bond. In header bonds, all bricks in each course are placed as headers on the faces of the walls.

Stretcher bond is also called a running bond, is created when bricks are laid with only their stretchers showing, overlapping midway with the courses of bricks below and above.

RRB JE CE (CBT II) Mock Test- 3 - Question 52

Which of the following statements are correct for Framed structure?

I. It consists of slab, beams, columns, and footing

II. All walls of the structure can be a partition wall.

III. More carpet area available than load-bearing structure.

IV. It is suitable for towers, high rise buildings, skyscrapers, etc.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 52 Framed structure comprises slabs resting on beams that are supported by a network of columns.

All the walls may or may not be a partition wall as none of them bear any load.

Generally, all multistoried buildings or high-rise buildings are constructed as a framed structures. However, as partition walls can be shifted easily anywhere on the floor, a higher degree of flexibility is available while planning a frame structure.

Compared with load-bearing structures, more carpet area is available, and it is almost the same for all floors.

Note:

For framed structure, the live load from the slab is transferred to the cross beams, which in turn transfer it to main beams through rigid joints. Main beams rest over columns and load from the beam is transferred to the soil through columns and their footings.

RRB JE CE (CBT II) Mock Test- 3 - Question 53

Which of the following glass is used in doors and windows?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 53 Soda – Lime Glass

Soda-lime glass having light transmission properties, as well as low melting temperature, which make it suitable for use as window glass.

Borosilicate Glass

Borosilicate glass is an engineered glass developed specifically for use in laboratories and applications where thermal, mechanical and chemical conditions are too harsh for standard, household-type soda lime glass.

Lead Glass:

Lead glass is a variety of glass in which lead replaces the calcium content of a typical potash glass. Lead Glass find their applications in ornaments, decanters, jewelry, optical lenses, enamels and lacquers, glass sealants and solders and radiation shielding from gamma and x-rays.

RRB JE CE (CBT II) Mock Test- 3 - Question 54

A good building stone is one which does not absorb more than ______ of its weight of water after one day’s immersion.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 54 A good building stone should be less porous. It should not absorb more than 5% of water. 5% water absorbed is a good quality stone and the stone which absorb more than 5% water absorbed are rejected.
RRB JE CE (CBT II) Mock Test- 3 - Question 55

The alternate long and short dashes of a center line used in building drawing are of ratio _______

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 55 The alternate long and short dashes of a center line are used in a proportion of 6 : 1 to 4 : 1.

∴ An appropriate answer would be 5 : 1 among all the available options.

Center lines are used to draw the center line of column, center line of walls or windows, etc. They are generally 0.2 mm to 0.3 mm thick.

RRB JE CE (CBT II) Mock Test- 3 - Question 56

Consider the following statements:

Aluminium is being increasingly used for structural purposes because

1. its modulus of elasticity is double that of steel

2. its coefficient of thermal expansion is half that of steel

3. the strength to unit weight ratio of aluminium is high

Which of these statements are correct?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 56

Hence option D is right answer.

RRB JE CE (CBT II) Mock Test- 3 - Question 57

The rise of an inverted arch in the inverted arch footing is about _______ times the span.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 57 Inverted arch footing consists of inverted arches between the two piers and the rise of the inverted arch is about 1/3 to 1/5 of the span.

RRB JE CE (CBT II) Mock Test- 3 - Question 58

Pegmatite is an example of

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 58 Pegmatites are extreme igneous rocks that form during the final stage of a magma’s crystallization. They are extreme because they contain exceptionally large crystals and they sometimes contain minerals that are rarely found in other types of rocks.

Examples of intrusive igneous rocks are diorite, gabbro, granite, pegmatite, and peridotite.

Examples, of extrusive igneous rocks andesite, basalt, dacite, obsidian, pumice, rhyolite, scoria, and tuff.

RRB JE CE (CBT II) Mock Test- 3 - Question 59

Pick up the incorrect principle in stone masonry construction:

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 59 General Principles involved in stone masonry construction are

1) Stones to be used for stone masonry should be hard, tough, and durable

2) The pressure acting on stones should be vertical

3) The stones should be perfectly dressed as per the requirements

4) The header and the bond stones should not be of dumb –bull shape

5) The Construction work of stone masonry should be raised uniformly

6) The plumb bob should be used to check the verticality of the erected wall

7) The stone masonry section should always be designed to take compression and not the tensile stresses

8) Double scaffolding should be used for working at a higher level

9) The properly wetted stones should be used to avoid mortar moisture being sucked

RRB JE CE (CBT II) Mock Test- 3 - Question 60

For making spiral staircases, the ideal material is

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 60 Spiral staircases are an incredibly space-saving design and aesthetically pleasing. In order to be durable, a spiral staircase should be made up of hard, reliable and economic material.

Pig Iron has very carbon content of around 3.8 to 4.7%, which makes it very brittle and not useful directly. Therefore, it can’t be used in making a spiral staircase.

Cast Iron has a carbon content of around 2 to 4%, which provides it necessarily required hardness and required high tensile strength. At the same time, it economical than steel.

Wrought Iron has a carbon content of less than 0.08%, and hence it does not satisfy required tensile strength and hardness.

Steel would be a costlier deal of all.

Therefore, the most suitable option is cast iron.

RRB JE CE (CBT II) Mock Test- 3 - Question 61

The presence of dampness while applying the primer affects the life of

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 61 Primer is a substance used as a preparatory coat on wood, metal, or canvas, especially to prevent the absorption of subsequent layers of paint or the development of rust.

Firstly, metals are coated with primers, and then oil or other paints are applied. But if there is a presence of moisture while applying primer, the life of oil paints is affected badly as there won’t be complete bonding between the surface and the paint.

RRB JE CE (CBT II) Mock Test- 3 - Question 62

Type of mortar used for pointing work is

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 62

RRB JE CE (CBT II) Mock Test- 3 - Question 63

Which of the following statements are correct for Load bearing structure?

I. The carpet area of the upper floor is lesser than the lower floor

II. Thickness of the higher-level wall is lesser than the lower level

III. Load of the structure is borne by the walls only

IV. It is suitable for Highrise buildings, towers or skyscrapers

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 63 The system of a building comprising of slabs, beams, and load-bearing walls are known as a load-bearing structure.

For such structure, loads from the slab roof or trusses and floors are transmitted through walls to the firm soil below the ground. In load-bearing structures, the wall thickness of the upper floors is lesser than the lower floor. Therefore, the carpet area of the higher level is more than the lower level.

Such type of structure is most suited for buildings up to three storeys and a where hard strata of soil is available. It is generally adopted for residential bungalow, tenement, temples, rural buildings, etc.

RRB JE CE (CBT II) Mock Test- 3 - Question 64

The units of payment for grouting of cracks, joints etc is in:

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 64 1. The units of payment for grouting of cracks, joints etc is done in per meter basis. While the unit of payment for general grouting is done on per square meter basis.

2. The units of payment for dismantling of brick masonry is done on the basis of per cubic meter basis.

3. The units of payment for centering and shuttering is done on the basis of per square meter basis.

RRB JE CE (CBT II) Mock Test- 3 - Question 65

A site plan of a plot bear ______

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 65 Site Plan: It is a layout showing the location of the area belonging to the building or property under consideration.

It should include the following details:

i) The shape of the plot and the boundary of the plot with all exterior dimensions.

ii) Setback line at the front, back, and sides.

iii) Any permanent boundaries or marks if any existing on-site.

iv) Type of existing street on the road along with its name and width should be indicated.

v) Grade elevation along the centerline, corners of the plot, and corners of the house by mean of contour lines of the surface.

vi) North line and wind direction should be indicated clearly.

vii) Width and types of footing.

viii) Location of the fire hydrant should be shown.

ix) Size, detail, type, and location of all the underground connections.

x) Zoning and restrictions for the building should be mentioned.

RRB JE CE (CBT II) Mock Test- 3 - Question 66

Which one of the following is the correct option to represent an external rolling shutter in building drawings?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 66 Option D is represent an external rolling shutter in building drawings.

RRB JE CE (CBT II) Mock Test- 3 - Question 67

To show grids on the screen in AutoCAD 3DS Max, a hotkey used is _______

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 67 For AutoCAD 3DS Max

Note: Ctrl + G is hotkey for Toggle Grid in AutoCAD.

Important Point:

For more shortcuts and tricks, you can referthe .

RRB JE CE (CBT II) Mock Test- 3 - Question 68

Which of the following is used to measure the discharge?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 68 Venturi meter is a device that measures the flow rate of fluid through the pipe. It can be used in any position.

Current meters with rotating propellers are still the most used devices for measuring water flow velocity by the method of the velocity field.

A pitot tube, also known as a pitot probe, is a flow measurement device used to measure fluid flow velocity.

RRB JE CE (CBT II) Mock Test- 3 - Question 69

The intensity of pressure developed by the surface tension of 0.075 N/m in a droplet of water of 0.075 mm diameter is

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 69 The intensity of pressure (P) developed by surface tension (σ) is given by

RRB JE CE (CBT II) Mock Test- 3 - Question 70

The slope of the straight line for Newtonian fluid gives

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 70

According to Newton’s law of viscosity, the shear stress is directly proportional to the rate of shear strain or rate of angular deformation of a fluid particle. Therefore, thea fluid particle tends to deform continuously when it is in motion.

where µ is the coefficient of viscosity

∴ The slope of the straight line obtained for Newtonian fluid on velocity gradient vs shear stress graph is viscosity.

RRB JE CE (CBT II) Mock Test- 3 - Question 71

The distance of the centre of pressure from the surface of the liquid is ________ of the density of the liquid.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 71 Centre of Pressure from the surface of the liquid is given by

h*= Centre of Pressure from the surface of the liquid

I = Moment of inertia of the section about an axis parallel to free surface passing through the centroid of the area

h¯ = depth of centroid below the free surface

∴ The distance of the centre of pressure from the surface of liquid is independent of the density of liquid.

RRB JE CE (CBT II) Mock Test- 3 - Question 72

The loss caused due to the sudden expansion of pipe from area A1 to area A2 and from velocity V1 to V2 is given by ________

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 72 Head loss due to the sudden expansion ⇒he=(V1−V2)2/2g

By continuity equation ⇒A1V1=A2V2⇒V2=A1V1/A2

Substituting the above-obtained relationship, we get

RRB JE CE (CBT II) Mock Test- 3 - Question 73

In isohyets, the line joining points on a map where

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 73 Isohyets: It is a line joining points of equal rainfall for a given interval. Isohyets are contours of equal precipitation analogous to contour lines on a topographic map.

In the isohyetal method, precipitation values are plotted at their respective stations on a suitable base map, and isohyets are drawn to create an isohyet map.

∴ In isohyets, the line joining points on a map where the amount of precipitation recorded in a given period is the same.

RRB JE CE (CBT II) Mock Test- 3 - Question 74

What is the diameter of the receiver tipping bucket rain gage?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 74 Concept

A tipping bucket rain gauge consists of a circular collector funnel with a brass or gunmetal rim that’s directs the rain into a pair of tipping buckets which sir on a knife edge. After rainwater has filled one side of the bucket with a small amount of rain, the assembly tips. An electrical pulse is generated on each tilt and recorded to provide rain fallen with time.

It has 30 cm (300 mm) diameter sharp-edged receiver, and at the end of the receiver is provided a funnel. Pair of buckets are pivoted under this funnel in such a way that when one bucket receives precipitation (rainfall) of 0.25 mm, it tips, discharging its rainfall into the container, bringing the other bucket under the funnel.

∴ The diameter of the receiver tipping bucket rain gage is 30 cm (300 mm).

RRB JE CE (CBT II) Mock Test- 3 - Question 75

In afflux, the rise in water level is due to

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 75 Afflux: Afflux is an increase in water level that can occur upstream of a structure, such as a dam, bridge, or culvert, obstructing the flow.

On the upstream side of the dam, the depth of the water will be rising due to obstruction/barrier. If there had not been any obstruction (such as a dam) in the path of the flow of water in the channel, the depth of water would have been constant parallel to the bed of the channel. Due to obstruction, the water level rises, and it has maximum depth from the bed in some sections.

This rise of water level on the upstream end is termed as afflux.

RRB JE CE (CBT II) Mock Test- 3 - Question 76

Excess silica in cement

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 76 If silica is present in excess quantity, the strength of cement increases, but at the same time, its setting time is prolonged.

Alumina in excess reduces the strength of the cement.

If lime is in excess, it makes the cement unsound causes it to expand and disintegrate.

Iron oxide in excess quantity causes the cement to set quickly.

RRB JE CE (CBT II) Mock Test- 3 - Question 77

As per IS specification, the maximum final setting time for ordinary Portland cement should be

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 77 As per IS 269,

Initial setting time of OPC is 30 minutes.

The final setting time of OPC is 10 hours.

RRB JE CE (CBT II) Mock Test- 3 - Question 78

Grading of aggregate in a concrete mix is necessary to achieve

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 78 Grading of the aggregates has a great effect on the workability, uniformity, and finishing qualities of concrete. Different grades of aggregate would lead to a significant reduction in void ratio resulting in more compact, dense and high strength concrete.
RRB JE CE (CBT II) Mock Test- 3 - Question 79

The chemical admixture that permits earlier removal of formwork and reduced the required period of curing is

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 79 Accelerating admixtures are added to concrete to increase the rate of early strength development in concrete to
  • permit earlier removal of formwork

  • reduce the required period of curing

  • advance the time that a structure can be placed in service

  • partially compensate for the retarding effect of low temperature during cold weather concreting

  • allow the emergency repair work

RRB JE CE (CBT II) Mock Test- 3 - Question 80

Consider the following statements:

1. The compressive strength of concrete decreases with an increase in the water-cement ratio of the concrete mix.

2. Water is added to the concrete mix for hydration of cement and workability.

3. Creep and shrinkage of concrete are independent of the water-cement ratio in the concrete mix.

The true statements are

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 80 Important points regarding the properties of concrete

The compressive strength of concrete decreases with an increase in the water-cement ratio of the concrete mix.

Water is added to the concrete mix for hydration of cement and workability.

The creep and shrinkage of concrete are dependent on the water-cement ratio in the concrete mix. If the water-cement ratio is high, then shrinkage is high.

RRB JE CE (CBT II) Mock Test- 3 - Question 81

Consider the following statements:

Curing of concrete by steam under pressure:

1. Increases the compressive strength of concrete

2. Reduces the shear strength of concrete

3. Increases the speed of the chemical reaction

Select the correct answer using the options given below:

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 81 Curing of concrete by steam under pressure

1. increases the rate of gain of compressive strength of concrete

2. Reduces the shear strength of concrete

3. Increases the speed of chemical reaction

RRB JE CE (CBT II) Mock Test- 3 - Question 82

Cement concrete is a

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 82 Viscoelasticity

Viscoelasticity is the property of materials that exhibit both viscous and elastic characteristics when undergoing deformation.

Viscous materials, like water, resist shear flow and strain linearly with time when stress is applied.

Elastic materials strain when stretched and immediately return to their original state once the stress is removed.

The form of the age effect on linear creep and elasticity is established by treating the hydrating cement paste as a variable composite in which the volume fraction of solid grows while the material creeps under load.

Hence, cement concrete is a viscoelastic material.

RRB JE CE (CBT II) Mock Test- 3 - Question 83

The volume of aggregate in self-compacted concrete is

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 83 Indicative proportions of materials are shown below for self-compatible concrete:
  1. The water/powder ratio by volume is to be 0.80 to 1.00

  2. Total powder content to be 160 to 240 liters (400-600 kg) per m3

  3. The sand content may be more than 38% of the mortar volume.

  4. Coarse aggregate content should normally be 28 to 35% volume of the mix.

  5. The water/cement ratio is selected based on the strength required. In any case, water content should not exceed 200 liters/m3.

  6. The volume of aggregates in total would form 50 to 60% of the volume of concrete.

RRB JE CE (CBT II) Mock Test- 3 - Question 84

Which of the following is not used to excavate the earth below the natural surface?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 84 Bach hoe also known as a back shovel or pull shovel is an excavating machine of the power shovel group, which is generally used to excavate below the natural surface.

It is generally employed to excavate trenches, pits for basements and generally for grading work, which requires precise control of depths.

RRB JE CE (CBT II) Mock Test- 3 - Question 85

The capacity of the guy-derrick crane is up to _________

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 85 Derrick cranes consist of a mast, a boom, and a bull wheel on which the boom rotates about a vertical axis and guys or supporting members. These cranes are either electrically operated, diesel operated or diesel-electrically operated.

The power driven cranes are mainly of two types i.e. a) Guy-derrick b) Stiff derrick

The guy-derrick has a small mast supported by a number of guys and a boom pivoted at the lower end of the mast. The boom can revolve through 360°. This crane is used for heavy loads up to 200 tons.

RRB JE CE (CBT II) Mock Test- 3 - Question 86

The length of the screw conveyor _________

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 86 Conveying is a process of transporting material from one place to another over a stationary structure. It can be vertical, horizontal or inclined.

Length of some popular conveyors are given below:

a) Belt conveyor: No limiting length as such, it can go up to several kilometers to carry several thousand tons of material per hour.

b) Screw conveyor: The length of the conveyor is about 65 m with an inclination up to a maximum of 35°.

c) Bucket conveyor: It has ‘V’ shaped buckets and is opened at top. The length of these type of conveyors is generally limited to 25 m due to the weight of the conveyor and length of chains.

RRB JE CE (CBT II) Mock Test- 3 - Question 87

Contour lines drawn on a map, are the lines which pass through

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 87 Contour line is a line on a map joining points of equal height (or elevation) above or below sea level.

Vertical cliff → Contour lines of different elevations unite to form one line.

Steep slope → Contour lines are closely spaced and for mild slope contour lines are apart from each - other.

Hills and Depression → Closed contour lines with higher values inside indicate hill and with lower values inside indicate pond or depression.

Overhanging cliff → Two contours of different elevation cannot cross each other except in case of vertical cliff.

RRB JE CE (CBT II) Mock Test- 3 - Question 88

In order to determine the natural features such as valleys, rivers, lakes, etc. the surveying preferred is

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 88 Geodetic surveys → To furnish data for the shape and size of Earth

Location surveys → To depicts data of any specific location or property

Engineering surveys → To obtain data for carrying out any type of project such as road, railways, water supply, etc.

Cadastral surveys → To show boundaries of the field, buildings, etc.

Topographical surveys → To show natural features of the country such as rivers, hills, streams, lakes, roads bridges, town, etc.

RRB JE CE (CBT II) Mock Test- 3 - Question 89

The Engineer’s chain is

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 89 (i) Gunter’s Chain: It is also called a surveyor's chain. It is 66 feet (20.12 m) long and consists of 100 links, each of 0.6 feet.

(ii) Engineer's Chain: It consists of 100 feet (30.48 m) long. It consists of 100 links each of 1 ft.

(iii) Revenue Chain: The revenue chain is 33 ft (10.06 m) long. It is used by the Revenue Department of India.

RRB JE CE (CBT II) Mock Test- 3 - Question 90

Which of the following error can be eliminated by taking the mean of both face observation?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 90 The errors that can be eliminated by changing face are as follows

1. Error due to the line of collimation not being perpendicular to the horizontal axis.

2. Error due to horizontal axis not being perpendicular to the vertical axis.

3. Error due to the line of collimation not being parallel to the axis of the altitude level.

∴ By taking the mean of both face observation, we eliminate error due to line of collimation not being perpendicular to the horizontal axis.

RRB JE CE (CBT II) Mock Test- 3 - Question 91

The instrument used for accurate centering in plane table survey is

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 91 A plumbing fork with a plumb bob attached to one end is used for centring the plane table at a particular station. This is used in large-scale work for setting the plane table such that the point on the paper may be brought vertically over the station marked on the ground.
RRB JE CE (CBT II) Mock Test- 3 - Question 92

Which of the following statement is CORRECT when the theodolite is properly adjusted?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 92 The permanent adjustment should be made in the order:
  1. Adjustment of Vertical cross hair: The vertical cross hair should lie in a plane perpendicular to the horizontal a×is.

  2. Adjustment of plate level a×es: The a×is of each plate level should lie in a plane perpendicular to the vertical a×is.

  3. Adjustment of line of sight: In a properly adjusted instrument, the line of sight is perpendicular to the horizontal a×is.

  4. Adjustment of horizontal a×is: The horizontal a×is is required to be perpendicular to the vertical a×is.

  5. Adjustment of the a×is of the telescope

  6. Adjustment of vertical circle inde×: The object of this adjustment is to set the vertical circle to zero when the line of sight is horizontal and the altitude bubble is centered.

RRB JE CE (CBT II) Mock Test- 3 - Question 93

The surveyor’s compass and prismatic compass:

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 93

RRB JE CE (CBT II) Mock Test- 3 - Question 94

Choose the option which correctly shows the relationship between Modulus of Elasticity (E); Modulus of Rigidity (G) and Bulk Modulus (K):

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 94 We know that

E=2G(1+μ)−(1)

E=3K(1−2μ)−(ii)

From (i)

RRB JE CE (CBT II) Mock Test- 3 - Question 95

What is the punching force required to drill a hole of 20 mm diameter in a plate of 8 mm thickness? Take ultimate shear stress = 360 N/mm2.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 95 For drilling a hole in the plate, the shearing stress reaches the ultimate stress value.

Shear area = π × d × t = π × 8 × 20 = 502.65 mm2

Shear stress (τ) = Shear Force/Shear Area

∴360=P502.65

∴ P = 108956 N = 108.96 kN

RRB JE CE (CBT II) Mock Test- 3 - Question 96

The number of simultaneous equations required in the slope deflection method is equal to

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 96 Important Points about Slope Deflection Method

The slope deflection equation will give the relationship between bending moment rotation and deflections.

The number of simultaneous equations to be solved in the slope deflection method is equal to the number of joint displacements in the structure.

In the slope deflection equations, the deformations are caused by bending moment only.

In slope deflection method, joint rotations are taken as unknowns.

The slope deflection method of structural analysis is a method of displacement.

RRB JE CE (CBT II) Mock Test- 3 - Question 97

What is a true strain if a square section of 5 mm × 5 mm is pulled by the force of 100 kN? (E = 2.1 × 105 N/mm2).

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 97 Concept

True strain (ϵt) is given by:

ϵt = loge (1 + ϵo)

Strain (ϵo) = P/(AE)

Calculation:

RRB JE CE (CBT II) Mock Test- 3 - Question 98

The rotation at any point in the structure can be expressed as

(where M is the bending moment at any section due to given loading and m is the bending moment at any section by application of a unit concentrated moment at a point where rotation is required and removing the external loading)

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 98 Unit load method

Rotation at any point can be expressed as

where

M is the bending moment at any section due to given loading and

m is the bending moment at any section, when external loading is removed, and a unit concentrated moment is applied at a point where rotation is required

Deflection at any point can be expressed as

M is the bending moment at any section due to given loading and

m is the bending moment at any section, when external loading is removed, and a Unit Load is applied at a point where rotation is required

RRB JE CE (CBT II) Mock Test- 3 - Question 99

A two-hinged semicircular arch of radius R carries a uniformly distributed load W per unit run over the whole span. The horizontal thrust is

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 99

Important Points:

For a Two Hinged Semicircular arch subjected to concentrated load (W) at any other point which makes an angle α with the horizontal, then the horizontal thrust,

RRB JE CE (CBT II) Mock Test- 3 - Question 100

Find the resultant of the force system acting on a lamina of equilateral triangular shape shown below:

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 100 ∑ Fx = 80 – 100 cos 60° - 120 cos 30°

∴ Rx = - 73.92N

∑ Fy = 80 + 120 sin 30° - 100 sin 60°

∴ Ry = 53.40 N

∴ R = 91.18 N

RRB JE CE (CBT II) Mock Test- 3 - Question 101

F.S.L. of a canal at its head with respect to parent channel is kept________.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 101 A canal is an artificial channel, generally trapezoidal in shape constructed on the ground to carry water to the field either from the river or form a tank or reservoir. The maximum capacity of the canal for which it is designed is known as full supply discharge. The water level of the canal corresponding to the full supply discharge is know as full supply level (F.S.L)
RRB JE CE (CBT II) Mock Test- 3 - Question 102

Moving car observer method is procedure_______.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 102 Traffic volume is the numbers of vehicles that pass a point on a highway on a particular lane on particular direction in unit time, generally in per unit hour, there is a term that represents the capacity of a road to accommodate the traffic volume. Moving car observer method is one of the procedures to estimate the traffic capacity of a road.
RRB JE CE (CBT II) Mock Test- 3 - Question 103

What is the maximum effective slenderness ratio (KL/r) for members carrying compressive loads resulting from dead load and imposed loads?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 103 According to I.S 800: 2007, Table 3 Maximum effective slenderness ratio (KL/r) for member carrying compressive loads resulting from dead load and imposed loads is 180.

The maximum slenderness ration KL/r, values of the beam strut or tension member shall not exceed the value given Table 3. Where ‘KL’ is the effective length of the member and ‘r’ is the appropriate radius of gyration.

RRB JE CE (CBT II) Mock Test- 3 - Question 104

A strut in steel beam comprised two equal angles of ISA 150 x 150 x 10 mm connected back to the back gusset plate. The cross section of the angle is A = 2921 mm2 and moment of inertia is I = 6335000 mm4 . The distance of Cg from the surface (Cx = Cy ) is 40.8mm Find the minimum radius of gyration of the strut.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 104 Radius of gyration or gyradius of a body about an axis of rotation is defined as the radial distance of a point from the axis of rotation at which, if the whole mass of the body is assumed to be concentrated, its moment of inertia about the given axis would be the same as with its actual distribution of mass.

Total cross section area A=2×2921 =5842mm2

Total Moment of Inertia 1=2×6335000mm4

=12670000mm4

Min Radius of gyration rmin= √(I/A) = 46.6mm

RRB JE CE (CBT II) Mock Test- 3 - Question 105

For design speed of 25kmph Intermediate Site Distance (ISD) is (meter)____________.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 105 According to IRC for 25kmph ,SSD=25m, ISD=2SSD=2 25=50
RRB JE CE (CBT II) Mock Test- 3 - Question 106

When was the battle of Chillianwala fought?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 106 The Battle of Chillianwala was fought in January 1849 during the Second Anglo-Sikh War in the Chillianwala region of Punjab (Mandi Bahauddin), now part of modern-day Pakistan.
RRB JE CE (CBT II) Mock Test- 3 - Question 107

The invention of ________ led to the third generation of computers.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 107 The period of third generation was from 1965-1971. The computers of third generation used Integrating Circuits in place of transistors.
RRB JE CE (CBT II) Mock Test- 3 - Question 108

Why is KO2 used in oxygen cylinders in space and submarine?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 108 It absorbs CO2 and increases O2 concentration according to the following reaction 4KO2+2CO2→2K2CO3+3O2

As in product O2 again is produced so its best to generate oxygen using Carbon Dioxide produced during breathing by using cylinder's gas.

RRB JE CE (CBT II) Mock Test- 3 - Question 109

Tooth enamel which is the hardest substance found in the human body, made up of______?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 109 The protective layer around your teeth, called enamel, is the strongest substance that our body produces. In fact, tooth enamel is stronger than any other substance on earth except for diamonds. It is comprised largely of calcium and phosphate mineral crystals, similar to the composition of our bones.
RRB JE CE (CBT II) Mock Test- 3 - Question 110

In which of the following clay material structural unit is joint by hydrogen bond?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 110 In Montmorillonite silica and gibbsite are boned by loosely heald water forces, in Illite non exchangeable potassium bond is present
RRB JE CE (CBT II) Mock Test- 3 - Question 111

Which of following is the best test for turbidity of water for the domestic water supply?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 111 Baliyes turbidimeter is the best test for turbidity of water for the domestic water supply.
RRB JE CE (CBT II) Mock Test- 3 - Question 112

Calculate the seepage loss⁡(Qm3/sec⁡/m) rate if coefficient of permeability is 5×10−3m/sec, number of flow line 3, number of drop 6 and hydraulic head is 2.5m.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 112

where Nd= no.of drops, Nf= no.of flow lines H=hydraulic head

RRB JE CE (CBT II) Mock Test- 3 - Question 113

Minimum cement content for RCC structure under sever condition is_______.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 113 For concrete to be durable, careful selection of the mix and materials is necessary, so that deleterious constituents do not exceed the limits. According to IS 456:2000 Table 5, for R.C.C construction minimum cement content based on the exposure condition is prescribes as below

RRB JE CE (CBT II) Mock Test- 3 - Question 114

Basic deflection value of span to depth ratio for simply supported beam are

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 114 According to I.S 456: 2000, Cl. 23.2.1 The vertical deflection limits may generally be assumed to be satisfied provided that the span to depth ratios are not greater than the values obtained as below

Basic values of span to effective depth ratios for spans up to 10 m:

  • Cantilever 7

  • Simply supported 20

  • Continuous 26

For spans above 10 m, the values in (a) may be multiplied by lo/span in metres, except for cantilever in which case deflection calculations should be made.

RRB JE CE (CBT II) Mock Test- 3 - Question 115

The joints in transverse direction are placed in cement concrete pavement____________.

RRB JE CE (CBT II) Mock Test- 3 - Question 116

A well operates for 22hrs each day during the irrigation seasons having a capacity of 6 m3/hr. How much area can be commanded if depth of irrigation is 9cm and irrigation interval is 10 days?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 116

RRB JE CE (CBT II) Mock Test- 3 - Question 117

Which among the following is the Largest Freshwater Lake in India?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 117 Wular Lake, One of the Largest Freshwater Lakes in India. Wular Lake, located in the state of Jammu and Kashmir, is often referred to as the largest freshwater lake in India. Wular is a natural lake that is a major part of the Jhelum River basin.
RRB JE CE (CBT II) Mock Test- 3 - Question 118

Biligiriranga Temple Wildlife Sanctuary is located in ________?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 118 The Biligirirangana Hills, commonly called BR Hills, is a hill range situated in south-eastern Karnataka.
RRB JE CE (CBT II) Mock Test- 3 - Question 119

Colour of water can be measured by__________.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 119 Colour of water can be measured by Tintometer.

Nephelometer = for turbidity , osmoscope for odour

RRB JE CE (CBT II) Mock Test- 3 - Question 120

The medium size of sediment particles in an alluvial channel is 0.4 mm. For a discharge of 3 m3/sec , the lacey’s regime slope would be_______.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 120 Lacey regime slope Discharge =Q=3m3/ sec Size of partial =dmm=0.4mm S =

RRB JE CE (CBT II) Mock Test- 3 - Question 121

Simply supported beam with overhang is having moment applied at free end. Draw ILD shape for reaction at Support B, when direction of motion is from A to B.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 121 The Müller-Breslau principle is a method to determine influence lines. The principle states that the influence lines of an action (force or moment) assumes the scaled form of the deflection displacement.

For drawing influenced line diagram unit force is applied at redundant reaction i. e at B, deflection occur due to this unit force is ILD for reaction at ‘B’

Figure 1 show correct representation of principle hence (1) is correct answer.

RRB JE CE (CBT II) Mock Test- 3 - Question 122

For plane frame shown in the figure calculate static and kinematic indeterminacy of the structure-

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 122 Degree of static indeterminacy

m = No. of member = 5

re = No. of external reaction

A. At fixed support = 3

B. At hinged support = 2

re = 3 + 2 +2 = 7

Number of joint = 6

Ds = 3m + re -3j - rr

= (3 x 5) + (3 + 2 + 2) – 3 x 6 – 0

= 4

Degree of kinematic indeterminacy

Ds = 3j - re -m

= (3 x 6) - (3 + 2 + 2) – 5 = 6

RRB JE CE (CBT II) Mock Test- 3 - Question 123

Formula for piezometric head is_________.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 123 Piezometric head

Where h= piezometric head P/σg = pressure head And t = elevation head

RRB JE CE (CBT II) Mock Test- 3 - Question 124

Type of soil structure found in fine sand and silt is______.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 124 Type of soil structure found in fine sand and silt is Honeycomb.

Single grained structure found in gravel and coarse sand,

Flocculated and dispersed structure develops in clay.

RRB JE CE (CBT II) Mock Test- 3 - Question 125

Principal of virtual work done states that_______.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 125 Principal of virtual work done states that, If a system in equilibrium under a system of forces undergoes a deformation, the work done by the external forces equals the work done by the internal stresses due to those forces.

RRB JE CE (CBT II) Mock Test- 3 - Question 126

Which chemical is used in nephelometer?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 126 Formazin chemical is used in nephelometer.
RRB JE CE (CBT II) Mock Test- 3 - Question 127

Anallactic lens provided in the tacheometer is a

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 127 It is a special convex lens, fitted in between the object glass and eyepiece, at a fixed distance from the object glass, inside the telescope of a tacheometer. The function of the anallactic lens is to reduce the stadia constant to zero. Thus, when tacheometer is fitted with anallactic lens, the distance measured between instrument station and staff position (for line of sight perpendicular to the staff intercept) becomes directly proportional to the staff intercept. Anallactic lens is provided in external focusing type telescopes only.
RRB JE CE (CBT II) Mock Test- 3 - Question 128

The 52nd amendment to the Constitution of India is most closely related to-

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 128 Constitution 52nd Amendment Act, 1985 provided provisions related to anti-defection in India. In this amendment, articles 101, 102, 190 and 191 were changed. It laid down the process by which legislators may be disqualified on grounds of defection and inserted schedule 10.
RRB JE CE (CBT II) Mock Test- 3 - Question 129

Which one is considered as India s first super computer?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 129 Supercomputer PARAM 8000 (made by the Centre for Development of Advanced Computing (C-DAC)) was launched on July 1, 1991 is considered Indias first supercomputer.
RRB JE CE (CBT II) Mock Test- 3 - Question 130

Green plants utilize ……… percent of sun’s energy to prepare their food by the process of photosynthesis?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 130 The study of flow of energy between various ecosystems state that the autotrophs in a terrestrial ecosystem capture about 1% of the energy of sunlight that falls on their leaves and convert it into feed.
RRB JE CE (CBT II) Mock Test- 3 - Question 131

Chemical formula for Copperass___________.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 131 Copperas = FeSO4.7H2O
RRB JE CE (CBT II) Mock Test- 3 - Question 132

IL>100% If then the soil is in state.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 132 liquid = since⁡ Wp = const, W > Wlthen only IL>100 Hence it is in liquid state)
RRB JE CE (CBT II) Mock Test- 3 - Question 133

Maximum shear stress occurs on the planes inclined at__________.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 133 Maximum shear stress occurs on the planes inclined at 45 In incline plane material may yield or fail at maximum value of σ or τ. This value occurs at θ = 00
RRB JE CE (CBT II) Mock Test- 3 - Question 134

While levelling in an undulating terrain, it is preferable to set up the instrument on__

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 134 Levelling is defined as the art of determining the relative height of different points on, above or below the surface.

Principle of Leveling:

1. Simple leveling:

It is the simplest operation in leveling when it is required to find the difference in elevation between two points both of which are visible from a single position of the level.

2. Differential leveling:

This method is used in order to find out the difference in elevation between two points.

If they too apart.

If the difference in elevation between them is too great.

In such cases, it is necessary to set up the level in several positions and work in various stages. The method of simple leveling is employed in each of the successive stages. The process is also known as compound continues leveling.

RRB JE CE (CBT II) Mock Test- 3 - Question 135

Factor of safety against quick sand condition is_________.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 135 Factor of safety against quick sand condition =ic/i In Friction Circle method

(1)Factor of safety w.r.t. shear strength in infinite slope =

(2)Factor of safety respect to cohesion =c/Cm Factor of safety for sudden drawdown = C/SnYsatH

RRB JE CE (CBT II) Mock Test- 3 - Question 136

The volume of water that can be extracted by the force of gravity from a unit volume of anwith aquifer material is called__________.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 136 The volume of water that can be extracted by the force of gravity from a unit volume of an aquifer material is called specific yield.

(Specific.retention=The ratio of the volume of water that given a body of rock that hold against the pull of gravity.

Specific storage= quantity that which water well can produce)

RRB JE CE (CBT II) Mock Test- 3 - Question 137

Wind speed is measured with_______.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 137 Wind speed is measured with an anemometer.

(heliometers= used to measure angular distances.

Stevenson box= an enclosure to meteorological instruments against precipitation and direct heat radiation from outside sources)

RRB JE CE (CBT II) Mock Test- 3 - Question 138

As per lacey’s method for the design of alluvial channels, identify the correct statement.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 138 Lacey’s hypothesis

Silt is kept in suspension by the vertical component of eddies generated at all forces normal to the wetted perimeter.

According to lacey, there may be three regime conditions:

  1. True regime

  2. Initial regime

  3. Final regime

As per lacey’s method for the design of alluvial channels, Wetted perimeter increases with an increase in design discharge.

RRB JE CE (CBT II) Mock Test- 3 - Question 139

Which of the following method is not displacement method?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 139 Force Method are those method in which forces are redundant and can be solved by equations of compatibility

Displacement Method are those method in which Displacements are redundant and can be solved by equations of equilibrium.

The first three methods are used when displacements are unknown; hence all those are displacement methodsthe and in the strain energy method, force is unknown.

RRB JE CE (CBT II) Mock Test- 3 - Question 140

In 1824, the sepoys refused to go to which place to fight for the East India Company by sea route?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 140 In 1824, the Sepoys were asked to go to Burma by the sea route to fight for the East India Company. The Sepoys refused to do so as they believed that if they crossed the sea they would lose their religion and caste. The Sepoys were severely punished for not obeying the British. In 1856 the Company passed a new law that stated that every new person who took up employment in the company army had to agree to serve overseas if required.
RRB JE CE (CBT II) Mock Test- 3 - Question 141

Which of the following is a rock?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 141 Gypsum is a rock, mica, and quartz are minerals.
RRB JE CE (CBT II) Mock Test- 3 - Question 142

In which slab design, the torsion ly/lx in the slab is greater than 2?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 142 Indian standard divided slab depending upon the load transfer mechanism of the slab. This mechanism is depending upon the ratio of length to two side of the slab. According to I.S 456: 2000, Annex D, Cl. D-1.11. The torsion ly/lx in slab is greater than 2, slab design as One way slab.
RRB JE CE (CBT II) Mock Test- 3 - Question 143

Width of carriage way for two lane with raised kerbs (in meters)is___________.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 143

Lane Width of carriage way(m)

single lane 3.75

Two lanes no kerbs 7.0

Two lanes raised kerbs 7.5

Intermediate carriage 5.5

Multi lane 3.5

RRB JE CE (CBT II) Mock Test- 3 - Question 144

IRC proposed relation for the psychological widening at horizontal curves_________.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 144 Psychological widening at horizontal curves Where V= design speed. R= Radius of the curve.
RRB JE CE (CBT II) Mock Test- 3 - Question 145

Which of the following instruments is used to study the dispersion of light?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 145 When the light emerges from the other face of the prism we observe the seven constituent of light. This phenomenon of the splitting of light into its constituent colours is called dispersion. Spectrometer and polarimeter are instruments used to study dispersion.
RRB JE CE (CBT II) Mock Test- 3 - Question 146

Indian born Shiva Ayyadurai is associated with the invention of -

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 146 Shiva Ayyadurai (born Vellayappa Ayyadurai Shiva, December 2, 1963) is an Indian-born American scientist and entrepreneur. He is notable for his controversial claim to be the "inventor of email,” based on the electronic mail software called "EMAIL" he wrote as a New Jersey high school student in the late 1970s.
RRB JE CE (CBT II) Mock Test- 3 - Question 147

Which of the following chemical/s is/are used in the breath test of a person who consumes alcohol during interrogation?

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 147 Potassium dichromate and Sulphuric acid are used in the breath test of an alcoholic. This test is widely used by the traffic police to analyze the degree of drunken during driving.
RRB JE CE (CBT II) Mock Test- 3 - Question 148

Air pocket temperature increases with increase in________.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 148 Air pocket temperature increases with an increase in Inversion.
RRB JE CE (CBT II) Mock Test- 3 - Question 149

Minimum throat thickness of fillet weld shall not be less than _.

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 149 According to I.S 800: 2007, Cl. 10.5.3, The effective throat thickness of fillet weld shall not less than 3mm.

Welding is the process of joining two pieces of metal by creating a strong metallurgical bond between them by heating or pressure or both. It is distinguished from other forms of mechanical connections, such as riveting or bolting, which are formed by friction or mechanical interlocking. It is one of the oldest and reliable methods of joining. According to I.S 800: 2007, Cl. 10.5.3. The effective throat thickness of fillet weld shall not less than 3mm and shall generally not exceed 0.7t or 1.0t under special circumstances, where t is thickness of the thinner plate element.

RRB JE CE (CBT II) Mock Test- 3 - Question 150

Match the following

Detailed Solution for RRB JE CE (CBT II) Mock Test- 3 - Question 150 Partial Safety Factor for material as per IS 800: 2007

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