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Civil Engineering (CE) Exam  >  Civil Engineering (CE) Tests  >  ISRO Draughtsman Civil Mock Test - 10 - Civil Engineering (CE) MCQ

ISRO Draughtsman Civil Mock Test - 10 - Civil Engineering (CE) MCQ


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30 Questions MCQ Test - ISRO Draughtsman Civil Mock Test - 10

ISRO Draughtsman Civil Mock Test - 10 for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The ISRO Draughtsman Civil Mock Test - 10 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The ISRO Draughtsman Civil Mock Test - 10 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 - 10 below.
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ISRO Draughtsman Civil Mock Test - 10 - Question 1
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The variation in declination due to magnetic storms is called

Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 1
Diurnal: It is a daily variation which changes with locality, season (more in summertime, more in day time)

Annual Variation: Yearly swing 1' or 2' in amplitude, it varies from place to place

Secular Variation: Has periodic character, (Pd. 250 years)

ISRO Draughtsman Civil Mock Test - 10 - Question 2
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IRC has specified the maximum value of stripping value of bitumen not be exceeded

Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 2

Bitumen adheres well to all normal types of road aggregates provided they are dry and free from dust. In the absence of water, there is practically no adhesion problem of bituminous construction. Adhesion problem occurs when the aggregate is wet and cold. This problem can be dealt with by removing moisture from the aggregate by drying and increasing the mixing temperature. Further, the presence of water causes stripping of binder from the coated aggregates. These problems occur when the bitumen mixture is permeable to water. 

IRC has specified the maximum value of stripping value of aggregate not to exceed 5%.

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ISRO Draughtsman Civil Mock Test - 10 - Question 3
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The rate of consolidation.

Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 3
Factors affecting the rate of consolidation

(→) The rate of consolidation increases with the temperature.

( → ) Decrease with the increase of liquid limit

( → ) Changes with the increase in effective stress etc.

ISRO Draughtsman Civil Mock Test - 10 - Question 4
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Pascal’s law states that pressure at any point in a fluid at rest has -
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 4
The pressure at any point in a fluid at rest has the same magnitude in all directions.

Hence the correct answer is option B.

ISRO Draughtsman Civil Mock Test - 10 - Question 5
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Bitumen emulsion is -
ISRO Draughtsman Civil Mock Test - 10 - Question 6
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If lines of action of forces in a system of forces meet at a point, then these forces are called as :
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 6
Forces whose line of action meets at one point are said to be concurrent. Coplanar forces lie in the same plane, whereas non-coplanar forces have to be related to three-dimensional space and require two items of directional data together with the magnitude. Two coplanar nonparallel forces will always be concurrent.
ISRO Draughtsman Civil Mock Test - 10 - Question 7
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The flow profile of a fluid depends upon
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 7

Reynold number is the factor by which type of flow is decided, i.e. laminar or turbulent.

ISRO Draughtsman Civil Mock Test - 10 - Question 8
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The strength based the classification of a brick is made on the basis of following
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 8

IS : 3101 — Aluminium collapsible tubes.
IS : 3102 — Classification of burnt clay brick.
IS : 3495 — Method of test of burnt clay brick.
IS : 3496 — Specification for dobby lags and pegs.

ISRO Draughtsman Civil Mock Test - 10 - Question 9
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The % of elongation of the piece under tension indicates its:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 9
Ductility is a solid material’s ability to deform under tensile stress; this is often characterized by the material’s ability to be stretched into a wire.

Hence the option D is correct.

ISRO Draughtsman Civil Mock Test - 10 - Question 10
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Maximum value of slenderness ratio of lacing flats in a steel column is-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 10
The spacing of lacing bars should be such that the maximum slenderness ratio of a component of main members between two consecutive lacing connections is not greater than 50. It should not be greater than 0.7 times the most unfavorable slenderness ratio of the combined column.

Hence the option B is correct.

ISRO Draughtsman Civil Mock Test - 10 - Question 11
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If (us) is the settling velocity and (v0) is the overflow velocity, then a particle will settle in a vertical settling tank when.
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 11
All particles with Vs>Vc will be completely settled.

All particle with Vsc will be removed in the ratio Vp/Vc

Hence, the correct option is (c).

ISRO Draughtsman Civil Mock Test - 10 - Question 12
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The first watering which is given to a crop is called-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 12
The first watering which is given to a crop when the crop is a few centimeters high is called Korwatering.

Hence the correct answer is option C.

ISRO Draughtsman Civil Mock Test - 10 - Question 13
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If a column is effectively held in position and restrained against rotation at one end and the other restrained against rotation but not held in the position, then the recommended value of effective length is-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 13
If a column is effectively placed in position and restrained against rotation at one end and restrained against rotation at the other but not held in position, the recommended value of effective length is 1.2 (l).

Hence the correct answer is option C.

ISRO Draughtsman Civil Mock Test - 10 - Question 14
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In the manufacture of bricks, tempering is the process in which:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 14
Tempering is the process in which clay is brought to a proper degree of hardness, and it is made fit for the next operation of moulding. Blending is when the clay is made loose, and any ingredient added to it is spread out at its top. Weathering is the process in which clay is exposed to the atmosphere softening or mellowing.

Hence the correct answer is option A.

ISRO Draughtsman Civil Mock Test - 10 - Question 15
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The reduced bearing of a line is N87∘W. Its whole circle bearing is
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 15
It is in the 4th quadrant to convert it from RB to WCB = 360°-Bearing of line.

360°-87° = 273°.

Hence, the correct option is (b).

ISRO Draughtsman Civil Mock Test - 10 - Question 16
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The yield of a well depends upon
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 16
The yield of a well is the rate at which water percolates into the well under the safe maximum depression head or the critical depression head. It depends on the position of the water table, permeability, and porosity of the soil, rate of water withdrawal from the well, and amount of water storage in the well.
ISRO Draughtsman Civil Mock Test - 10 - Question 17
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In surveying which both horizontal and vertical positions of a point are determined by an optical instrument is called
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 17
Tacheometry is a system of rapid surveying by which the positions, both horizontal and vertical, of points on the earth’s surface relative to one another are determined without using a chain or tape or a separate leveling instrument.

Tacheometry is also called as telemetry,tachematry.

Hence the correct answer is option D.

ISRO Draughtsman Civil Mock Test - 10 - Question 18
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The total water consumption, including domestic, commercial and industrial demands for average Indian people is.
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 18

The quantity of water required for domestic use mainly depends on the habits, social status, climatic conditions, and customs of the people. In India, on an average, the domestic consumption of water under normal conditions is about 135 litres/day/capita as per IS: 1172-1171.

Hence the correct answer is option A.

ISRO Draughtsman Civil Mock Test - 10 - Question 19
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Maximum shear stress produced on a solid circular shaft under torque is
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 19

Hence correct answer is option B.

ISRO Draughtsman Civil Mock Test - 10 - Question 20
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Find mild and moderate exposures, if 20mm down coarse aggregates are used, minimum cement content per cubic metre of concrete must not be less than
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 20
If 20mm down coarse aggregates are used, the minimum cement content per cubic metre of concrete must not be less than 300 kg.

Hence the correct answer is option B.

ISRO Draughtsman Civil Mock Test - 10 - Question 21
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An isobar is a curve that joins points of equal-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 21
An isobar is a curve joining the points of equal stress intensity. Isobars help determine the effect of the load on the vertical stresses at various points.
ISRO Draughtsman Civil Mock Test - 10 - Question 22
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IS 456: 2000 recommends that the minimum grade of concrete in reinforced concrete work shall not be less than
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 22
IS 456 : 2000 recommends that the minimum grade of concrete shall not be less than M 20 in reinforced concrete work.
ISRO Draughtsman Civil Mock Test - 10 - Question 23
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The effective length of a fillet weld is taken as the actual length-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 23
The effective length of a fillet weld is taken as the actual length minus twice the size of the weld.

Hence the correct answer is option B.

ISRO Draughtsman Civil Mock Test - 10 - Question 24
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A hinged support in a real beam-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 24

Conjugate Beam

Real Beam

So, hinged support in real beam remains as hinged support in the conjugate beam.

ISRO Draughtsman Civil Mock Test - 10 - Question 25
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Standard penetration resistance in very stiff clays lies between:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 25
Standard penetration resistance in very stiff clays lies between 15 and 30.

Hence the correct answer is option D.

ISRO Draughtsman Civil Mock Test - 10 - Question 26
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The specific gravity and in-situ void ratio of soil deposit are 2.67 and 0.85 respectively. The value of critical hydraulic gradient is:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 26
Critical hydraulic gradient,

Hence, the correct option is (C)

ISRO Draughtsman Civil Mock Test - 10 - Question 27
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Minimum D.O. prescribed for a river stream, to avoid fish kills is :
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 27
Although air is 21 percent oxygen, water has only a very tiny amount of dissolved oxygen. Most fish do well when the dissolved oxygen is five parts per million (ppm) (= 5/1,000,000) or higher. When the dissolved oxygen is less than five ppm they become uncomfortable.

Hence, the correct option is (A)

ISRO Draughtsman Civil Mock Test - 10 - Question 28
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Edge distance is the distance between the centre of the rivet and edge of the plate element measured:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 28
Edge distance is the distance between the centre of the rivet and edge of the plate element measured Perpendicular to the direction of a force.

Hence, the correct option is (A)

ISRO Draughtsman Civil Mock Test - 10 - Question 29
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Flash set of ordinary Portland cement paste is ______.
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 29
If inadequate amounts of gypsum are added to the cement, a flash set can occur - rapid development of rigidity in freshly mixed Portland cement paste, mortar, or concrete.

A large amount of heat is produced in the process, and it is the premature hardening of the cement.

ISRO Draughtsman Civil Mock Test - 10 - Question 30
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The net area of round bars to resist the tension, is the area of the cross-section at
Detailed Solution for ISRO Draughtsman Civil Mock Test - 10 - Question 30
The net tensile area at threads may be taken as the area corresponding to the root diameter at the thread.

Note: The shearing of rods can take place in the threaded portion of the rod and so the area at the root of the threads, also called the tensile stress area. Since threads can occur in the shear plane, the area for resisting shear should normally be taken as the net tensile stress area, ATnet, of the bars.

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