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Civil Engineering (CE) Exam  >  Civil Engineering (CE) Tests  >  ISRO Draughtsman Civil Mock Test - 8 - Civil Engineering (CE) MCQ

ISRO Draughtsman Civil Mock Test - 8 - Civil Engineering (CE) MCQ


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30 Questions MCQ Test - ISRO Draughtsman Civil Mock Test - 8

ISRO Draughtsman Civil Mock Test - 8 for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The ISRO Draughtsman Civil Mock Test - 8 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The ISRO Draughtsman Civil Mock Test - 8 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 - 8 below.
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ISRO Draughtsman Civil Mock Test - 8 - Question 1
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The value of Poisson's ratio of concrete is

Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 1
The value of Poisson's ratio of concrete is 0.2.

Poisson’s ratio of concrete is the ratio of transverse strain to longitudinal strain in a concrete specimen subjected to axial loads. The longitudinal strain and vertical strain are produced due to concrete volume reduction under compression load. Volume reduction of the concrete specimens is the result of crushing small aggregate sizes due to exerted loads. Poisson’s ratio of concrete is a constant for determining the stress and deflection properties of structures such as beams, plates, and shells

ISRO Draughtsman Civil Mock Test - 8 - Question 2
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The effective slenderness ratio of a column fixed at both ends is:

Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 2
The effective length of a fixed column, i.e., effectively held in position and restrained against rotation at both ends is 0.65 L/r.
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ISRO Draughtsman Civil Mock Test - 8 - Question 3
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The volume of voids to volume of solids is known as

Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 3
The void ratio of a mixture is the ratio of the volume of voids to the volume of solids. is porosity, VV is the volume of void-space (air and water), VS is the volume of solids, and VT is the total or bulk volume.
ISRO Draughtsman Civil Mock Test - 8 - Question 4
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A mild steel wire is 10mm in diameter and 1mm long. If the wire is subjected to an axial tensile load of 10kN, find an extension of the road (Take E = 200 x 109.)
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 4

ISRO Draughtsman Civil Mock Test - 8 - Question 5
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The rectangular beam of width, 250 mm is having an effective depth of 317 mm. The concrete grade is M20 and the grade of reinforcing steel is Fe415. The moment capacity of the section due to concrete as per limit state method is:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 5
(i) Characteristics strength of concrete, fck=20N/mm2

(ii) Characteristics strength of reinforcing steel, fy=415N/mm2

(iii) Width, b=250mm

(iv) Effective depth, d=317mm

(v) Neutral axis factor, xub/d

=ϵc/ϵc+ϵs

=0.0035/0.0035+0.0038

=0.48

(vi) Coefficient, Qub

=k1(xub/d)(1−k2(xub/d))

=0.36×0.48×(1−0.42×0.48)

=0.138

(vii) Moment of resistance due to concrete,

Muab =Qubfckbd2

=0.138×20×250×3172

=69.395kNm

Hence, the correct option is (c).

ISRO Draughtsman Civil Mock Test - 8 - Question 6
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For a granular soil, with an increasing void ratio, the critical hydraulic gradient:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 6
Critical hydraulic gradient

(ic= G−1/1+e)

Where,

G= Specific gravity and e= void ratio

Hence on increasing the void ratio, the critical hydraulic gradient will decrease.

ISRO Draughtsman Civil Mock Test - 8 - Question 7
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In quadrantal bearing system, back bearing of a line may be obtained from its forward bearing, by
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 7
In a quadrantal bearing system, the back bearing of a line may be obtained from its forward bearing by changing the cardinal points, i.e., substituting N for S and E for W and vice-versa.

Hence, the correct option is (c).

ISRO Draughtsman Civil Mock Test - 8 - Question 8
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Cement will have higher ultimate strength, less generation of heat and less cracking if:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 8

Initial setting of Portland cement is due to the tricalcium aluminate. Tricalcium aluminate hydrates quickly, generates much heat and makes only small contribution to the strength within the first 24 hours. Among all the elements, the aluminate generates the maximum heat. Due to this, tricalcium aluminate is responsible for most of.the undesirable properties of concrete.

ISRO Draughtsman Civil Mock Test - 8 - Question 9
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For routine consolidation test in the laboratory, the thickness of the specimen is;
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 9
An oedometer sample thickness of 0 mm is used for a diameter of 60 mm.
ISRO Draughtsman Civil Mock Test - 8 - Question 10
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Centre of buoyancy always
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 10

Coincides with the centroid of the volume of displaced fluid

ISRO Draughtsman Civil Mock Test - 8 - Question 11
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A circular shaft can transmit a torque of 5kNm. If the torque is reduced to 4kNm, then the maximum value of bending moment that can be applied to the shaft is-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 11

here M=O, here

ISRO Draughtsman Civil Mock Test - 8 - Question 12
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The grouping of piles will not reduce the load-carrying capacity in case of-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 12
Settlement of pile group increase, but the load-carrying capacity of piles remains equal to the sum of individual piles load carrying capacity or the load-carrying capacity of pile group in group action, whichever is less.
ISRO Draughtsman Civil Mock Test - 8 - Question 13
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According to IS 800 – 1962 the permissible bending stress in steel slab plate is-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 13
According to IS 800 – 1962, the permissible bending stress in steel slab plate is 1890 (kg/cm2)

Hence the option D is correct.

ISRO Draughtsman Civil Mock Test - 8 - Question 14
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According to IS : 456-2000, the maximum reinforcement in a column is-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 14
Cross-sectional area of longitudinal reinforcement shall be not less than 0.8% and not more than 6% of the cross-sectional area of the column.

Hence the option C is correct.

ISRO Draughtsman Civil Mock Test - 8 - Question 15
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The operation of removing humps and hollows of the uniform concrete surface is known as-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 15
The operation of removing humps and hollows of the uniform concrete surface is known as Screeding.

Hence the option B is correct.

ISRO Draughtsman Civil Mock Test - 8 - Question 16
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The pressure distribution at the base of a flexible foundation for all types of soil is-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 16
Inflexible foundation pressure will be uniform in all types of soil.

Hence the correct answer is option A.

ISRO Draughtsman Civil Mock Test - 8 - Question 17
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The sum of interior angles of a closed traverse is -
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 17
For closed traverses, Sum of Interior angles = (n-2) x 180°, where n = number of angles in the traverse.

Hence the correct answer is option A.

ISRO Draughtsman Civil Mock Test - 8 - Question 18
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According to the central pollution control board(CPCB) recommended permissible noise levels, what is the noise level in decibels in an industrial area in the day time
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 18

According to the central pollution control board

industrial area day - 75 night - 70

commercial area day - 65 night - 55

residential area day - 55 night - 45

silenced zone day - 50 night - 40

Hence the correct answer is option A.

ISRO Draughtsman Civil Mock Test - 8 - Question 19
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What is the moisture depth available for evapotranspiration in the root zone of 1.5 m depth soil if the dry weight of soil is 2 gm/cc, field capacity is 40%, and the permanent wilting point is 20%?
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 19
Moisture depth = S.d(FC x PWP)

= 2 x 1.5 (0.4-0.2)

= 3 x 0.2

= 0.6 m

= 600 mm

Hence the correct answer is option C.

ISRO Draughtsman Civil Mock Test - 8 - Question 20
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Shear span is defined as the zone where
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 20
Shear span is defined as the zone where shear force is constant. The typical bending moment and shear force diagram of a uniformly loaded beam is given below. Since shear force is not constant between any span within the beam.

Hence the correct answer is option A.

ISRO Draughtsman Civil Mock Test - 8 - Question 21
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For such element only under normal stresses, the radius of the Mohr circle is
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 21
Radius of Mohr's circle

Hence the correct answer is option A.

ISRO Draughtsman Civil Mock Test - 8 - Question 22
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Find the odd entry among silica fume, rice husk ash, metakaolin, and ground granulated blast furnace slag with respect to cement production.
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 22
GGBFS confirming IS 12089 chemical requirements can be used as a mineral admixture as a part replacement to cement, whereas the other three are used as a cementitious material.

Hence the correct answer is option D.

ISRO Draughtsman Civil Mock Test - 8 - Question 23
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The angular distance of a heavenly body from the Zenith is known as-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 23
The angular distance from the zenith to any celestial body in space is called the zenith distance. The nadir, which is directly opposite the zenith, has a zenith distance of 180°, and the celestial horizon has a zenith distance of 90°.
ISRO Draughtsman Civil Mock Test - 8 - Question 24
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A beam is defined as a structural member subjected to-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 24
Generally, beams are placed in a transverse direction to the slab. In the direction parallel to the shorter span of the slab. Hence loading in the beam is transverse loading.
ISRO Draughtsman Civil Mock Test - 8 - Question 25
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Factor of safety is the ratio of-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 25
Factor of safety =Yield stress/ working stress
ISRO Draughtsman Civil Mock Test - 8 - Question 26
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I.S.I. has specified the full strength of concrete after-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 26
I.S.I. has specified the full strength of concrete after 28 days.

Hence the correct answer is option D.

ISRO Draughtsman Civil Mock Test - 8 - Question 27
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Flow of fluid takes place due to its:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 27
Flow patterns in a fluid (gas or liquid) depend on three factors: the characteristics of the fluid, the speed of flow, and the shape of the solid surface. Three characteristics of the fluid are of special importance: viscosity, density, and compressibility.
ISRO Draughtsman Civil Mock Test - 8 - Question 28
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Sand replacement method uses :
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 28
Sand replacement method uses ennore sand,

Sand Replacement Method is also known as Sand Cone Method. The apparatus used in this field density test consists of a sand pouring cylinder, with pouring cone at its base. There is a shutter between the cylinder and the cone. The cylinder is first calibrated to determine the unit weight of sand.

Hence, the correct option is (A)

ISRO Draughtsman Civil Mock Test - 8 - Question 29
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Match List - I (Method of Levelling) with the List-II (Property)
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 29

ISRO Draughtsman Civil Mock Test - 8 - Question 30
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If Reynold's number of the flow is 9500, then the drag coefficient for the transition region having a particle diameter size equal to 0.5 mm can be expressed as
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 30

The Drag Coefficient has been empirically connected with Reynold's number by Thomas Camp curve as

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