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Civil Engineering (CE) Exam  >  Civil Engineering (CE) Tests  >  ISRO Draughtsman Civil Mock Test - 4 - Civil Engineering (CE) MCQ

ISRO Draughtsman Civil Mock Test - 4 - Civil Engineering (CE) MCQ


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30 Questions MCQ Test - ISRO Draughtsman Civil Mock Test - 4

ISRO Draughtsman Civil Mock Test - 4 for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The ISRO Draughtsman Civil Mock Test - 4 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The ISRO Draughtsman Civil Mock Test - 4 MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for ISRO Draughtsman Civil Mock Test - 4 below.
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ISRO Draughtsman Civil Mock Test - 4 - Question 1
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The survey was done to locate boundaries of a field and to determine its area is called

Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 1
CHAIN AND CROSS STAFF SURVEY Aim: To locate the boundaries of a given field and also to determine the area.
ISRO Draughtsman Civil Mock Test - 4 - Question 2
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The value of the ordinates, at the quarter span of the influence line diagram for the midspan bending moment of a simply supported beam, is 0.5 m. If the span of the beam is doubled, what will be the ordinates at the midspan of the influence line?

Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 2

Option is A. 2.0 m

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ISRO Draughtsman Civil Mock Test - 4 - Question 3
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Garret diagram, for the design of irrigation channels, is based on

Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 3
Garret's diagram:

  • It gives the graphical method of designing the channel dimensions based on Kennedy's Theory.

  • The diagram has discharge plotted on the abscissa.

  • The ordinates on the left indicate the slope and on the right water depth in the channel & critical velocity Vo.

ISRO Draughtsman Civil Mock Test - 4 - Question 4
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A submerged weir is one in which the water level on the side of the down stream of the weir is:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 4
When the water level on the downstream side of a weir is above the top surface of a weir, it is known as submerged or drowned weir, as shown in the figure. The total discharge over such a weir is found out by splitting up the height of the water, above the sill of the weir, into two portions.
ISRO Draughtsman Civil Mock Test - 4 - Question 5
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Coefficient of earth pressure at rest is given by -
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 5
Coefficient of Earth Pressure at Rest ((K0)−)(K0=μ/(1−μ))

For a perfectly cohesion-less soil C=0

If the soil normally consolidated (N.C. soil)

For over consolidated soil (OC soil) K0oc=K0NC

Where, (μ)= Poisson’s ratio (ϕ)= friction angle (IP)= plasticity index

O.C.R. = Over consolidated ratio

ISRO Draughtsman Civil Mock Test - 4 - Question 6
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Uniformity coefficient of soil is -
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 6
Uniformity coefficient of a soil ((Cu)) (Cu=D60/D10) If (Cu=1,) then the soil is perfectly uniformly graded (all particles are of equal size) If (Cu>4,) then the soil will be well-graded gravel If (Cu>6,) then the soil will be well-graded sand Where, (D10)= effective size of the grain.
ISRO Draughtsman Civil Mock Test - 4 - Question 7
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Along the horizontal curves, if centrifugal force exceeds lateral friction, vehicles may
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 7

Skidding of vehicle occurs when centrifugal force exceeds lateral friction

ISRO Draughtsman Civil Mock Test - 4 - Question 8
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If void ratio is 0.65 and specific gravity is 2.65 then the critical hydraulic gradient is
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 8

ic = (G + 1) ÷ (1 + e)
= ic = (2.65 - 1) ÷ (1 + 0.65) = 1

ISRO Draughtsman Civil Mock Test - 4 - Question 9
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The effective width of the flangs of T-beam is given is,
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 9

It is that portion of the slab that acts integrally with the beam and extends on either side of the beam forming the compression zone. The effective width of the flange mainly depends upon the span of beams, the thickness of the slab, and the breadth of the web. It also depends upon the type of loads and support conditions.

The effective width of the flange should not be greater than the breadth of the web plus half the sum of clear distances to the adjacent beams on either side.

Hence the correct answer is option B.

ISRO Draughtsman Civil Mock Test - 4 - Question 10
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The functional loss in the value of the property due to change in design, structure, fashion, utility, demand, etc. is known as-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 10
Obsolescence: The value of property or structures become less by its becoming out of date in style, in structure in design, etc. 1) The loss in the value of the property is due to change of design, fashion, in the structure of the other, change of utility, demand.

Hence the correct answer is option A.

ISRO Draughtsman Civil Mock Test - 4 - Question 11
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The velocity at which laminar flow withdrawn is:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 11

Critical Velocity

Critical Velocity is the maximum velocity of a fluid, above which, the streamline flow get the change to turbulent flow.

  • Lower critical Velocity
    (i) It is the velocity at which the laminar flow stops.
    (ii) In this, the flow enters from laminar to transition period which exists between the laminar and turbulent flow.
  • Upper Critical velocity
    (i) It is the velocity at which the turbulent flow starts.
    (ii) In this, the flow enters from the transition period to turbulent flow.
ISRO Draughtsman Civil Mock Test - 4 - Question 12
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The curvature of the earth is taken into account when the extent of the area is more than -
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 12
Results for plane survey does not hold suitable for an area greater than 250 km2

Hence the correct answer is option C.

ISRO Draughtsman Civil Mock Test - 4 - Question 13
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Estimate the theoretical capacity of a traffic lane with one-way traffic flow at a stream speed of 45 kmph. Assume the average space gap between vehicles to follow the relation Sg = 0.278 Vt where V is the speed in kmph, t is the average reaction time 0.8 sec. Assume the average length of vehicles =5.0 m.
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 13
speed V= 45 kmph

reaction time t = 0.8 sec

length of vehicles L = 5 m

space s = 0.278 Vt + L

= 0.278 x 45 x 0.8 + 5

= 10.008 + 5

= 15.008 m

theoretical capacity C = 1000V/S

= 2998.4

= 2998(say)

So theoretical capacity C = 2998 vehicles/hour/lane

Hence the correct answer is option B.

ISRO Draughtsman Civil Mock Test - 4 - Question 14
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The penman evapotranspiration equation is based on
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 14
The penman formula is a semi-empirical equation combining mass transfer (Ea) and energy budget (H) methods. The formula was developed by Penman in 1948 and is still widely used for calculating the potential evaporation using synoptic meteorological data.

Hence the correct answer is option D.

ISRO Draughtsman Civil Mock Test - 4 - Question 15
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The discharge over a broad-crested weir is maximum when the depth of flow is
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 15
The discharge over the broad-crested weir is given by,

To measure the discharge over the broad-crested weir, two heads (i.e., H and h) need to be measured. However, experiments have shown that the flow adjusts itself to have maximum discharge for the available head. The downstream head over the weir can be computed mathematically by differentiating equation (1) with respect to and equating it to zero i.e.

This value of h is known as depth of flow.

Hence the correct answer is option B.

ISRO Draughtsman Civil Mock Test - 4 - Question 16
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The modulus of elasticity of steel is
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 16
The modulus of elasticity is material-dependent. For example, the modulus of elasticity of steel is about 200 GPa (29,000,000 psi), and the modulus of elasticity of concrete is around 30 GPa (4,350,000 psi). The modulus of elasticity of aluminum is 69 GPa (10,000,000 psi).

Hence the correct answer is option C.

ISRO Draughtsman Civil Mock Test - 4 - Question 17
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Which of the following types of the riveted joint is free from bending stresses?
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 17
In the case of the butt joint with a double cover at the top and bottom, then eccentricity does not come into the picture when transfer the axially load through it.
ISRO Draughtsman Civil Mock Test - 4 - Question 18
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Muller-Breslau principle is applicable to get influence line for-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 18
The principle states that the influence lines of action (force or moment) assumes the scaled form of the deflection displacement. OR, This principle states that "ordinate of ILD for a reactive force is given by ordinate of the elastic curve if a unit deflection is applied in the direction of the reactive force."
ISRO Draughtsman Civil Mock Test - 4 - Question 19
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The velocity distribution in laminar flow through a circular pipe follows the-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 19

ISRO Draughtsman Civil Mock Test - 4 - Question 20
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The effective width of a column strip of a flat slab is-
ISRO Draughtsman Civil Mock Test - 4 - Question 21
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Air valves in a distribution system are provided at:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 21
Air Valve Location Basically, air valves for exhausting air should be located at points on the pipeline to which air tends to be drawn or where air tends to collect. Air valves for air intake should be located at points on the pipeline that are most susceptible to sub-atmospheric pressures.
ISRO Draughtsman Civil Mock Test - 4 - Question 22
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The shrinkage of concrete-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 22
Drying shrinkage is the contraction in the concrete caused by moisture loss from drying concrete. Shrinkage compensating concrete is used to minimize cracking and structural movement caused by drying shrinkage in concrete.
ISRO Draughtsman Civil Mock Test - 4 - Question 23
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Permissible compressive strength of M 200 concrete grade is-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 23
Permissible compressive strength of M 200 concrete grade is 200 ( km/cm2 ).

Hence the correct answer is option C.

ISRO Draughtsman Civil Mock Test - 4 - Question 24
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The texture of sandstone is:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 24
Sandstones are made of sand grains that have been cemented together. Like sandpaper, sandstones usually have a rough, granular texture.

Grain size - 0.06 - 2mm

Hardness - variable, soft to hard, depends on clast and cement composition.

Colour - variable through a grey, yellow, red to white reflecting the variation in mineral content and cement.

Hence, the correct option is (D)

ISRO Draughtsman Civil Mock Test - 4 - Question 25
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A theodolite in which the telescope can be revolved through a complete revolution in a vertical plane is known as a-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 25
A theodolite is said to be transit one when its telescope can be revolved through 180° in a vertical plane about its horizontal axis, thus directing the telescope in the exact opposite direction.

Hence, the correct option is (C)

ISRO Draughtsman Civil Mock Test - 4 - Question 26
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The maximum permissible stress for power-driven field rivet in bearing on rivet is-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 26
The maximum permissible stress for power-driven field rivet in bearing on rivet is 270 N/mm2

Hence, the correct option is (C)

ISRO Draughtsman Civil Mock Test - 4 - Question 27
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Bulking of sand occurs when the water content is,
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 27
The increase in volume due to bulking is between 20 to 30% for most sands at a 4 – 5% water content.

The increase in the volume of sand due to increase in moisture content is known as bulking of sand. A film of water is created around the sand particles which forces the particles to get a side from each other and thus the volume is increased.

The increase in moisture in sand increases the volume of sand. The volume increase in dry sand is known as the bulking if sand. Bulking of sand depends on the quantity of moisture in the sand and also the size of the particles. Five to eight percent of the increase in moisture in the sand can increase the volume of sand up to 20 to 40 percent. Again the finer the sand is more will be the increase in volume and increase in volume will be relatively less for coarser sand.

Hence, the correct option is (D)

ISRO Draughtsman Civil Mock Test - 4 - Question 28
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Which of the following constituent gives plasticity to mold bricks in a suitable shape?
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 28
Alumina in Brick

Good brick earth should contain about 20% to 30% of alumina.

It is responsible for the plasticity characteristic of the earth, which is essential in a molding operation.

If present in excess, then the raw brick shrink and warps during drying.

ISRO Draughtsman Civil Mock Test - 4 - Question 29
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Which of the following is not an important factor that needs to be considered while preparing maps?
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 29

  • A map is a two-dimensional representation of the earth surface which uses graphics to convey geographical information

  • It describes the geographical location of features and the relationship between them; Maps are fundamental to society

  • Rectangular coordinates, Scales, and Plotting accuracy are the main important factors that needs to be considered while preparing maps

  • Polar coordinates provide a method of rendering graphs and indicating the positions of points on a two-dimensional (2D) surface; It is not used in preparing maps

ISRO Draughtsman Civil Mock Test - 4 - Question 30
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A channel designed by Lacey's theory has a velocity of 0.88 m/sec. The silt factor is 1.1. The hydraulic mean depth will be
Detailed Solution for ISRO Draughtsman Civil Mock Test - 4 - Question 30

According to Lacey's theory, the hydraulic mean depth,

where V = velocity of the flow in the channel,

f = Lacey's silt factor

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