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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) 2025 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) 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for ISRO Draughtsman Civil Mock Test - 8 below.
Solutions of ISRO Draughtsman Civil Mock Test - 8 questions in English are available as part of our course for Civil Engineering (CE) & ISRO Draughtsman Civil Mock Test - 8 solutions in Hindi for Civil Engineering (CE) course. Download more important topics, notes, lectures and mock test series for Civil Engineering (CE) Exam by signing up for free. Attempt ISRO Draughtsman Civil Mock Test - 8 | 80 questions in 90 minutes | Mock test for Civil Engineering (CE) preparation | Free important questions MCQ to study for Civil Engineering (CE) Exam | Download free PDF with solutions
ISRO Draughtsman Civil Mock Test - 8 - Question 1
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Moment of inertia of a rectangular section, having 'b' width and the depth 'd', about its vertical centroidal axis is-

Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 1
Moment of inertia of rectangular section about an axis passing through CG and parallel to width will be db3/12
ISRO Draughtsman Civil Mock Test - 8 - Question 2
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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 2

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ISRO Draughtsman Civil Mock Test - 8 - Question 3
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The size of modular brick is -

Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 3
Standard brick, modules brick, actual brick size 19×9×9 cm.

And nominal brick size = modular brick +mortar =20×10×10 cm.

ISRO Draughtsman Civil Mock Test - 8 - Question 4
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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 4
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 5
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If the diameter of a capillary tube is doubled, the capillary rise will be:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 5
Capillary height

((hc)=4σcos⁡θ/wd)

(⇒hc∞1/d)

Hence, If the diameter of a capillary tube is doubled, the capillary rise will be halved.

ISRO Draughtsman Civil Mock Test - 8 - Question 6
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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 6

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 7
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Von-Karmon momentum integral equation is:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 7

(c) In 2D incompressible and steady flow, pressure gradient in direction of flow is zero:

ISRO Draughtsman Civil Mock Test - 8 - Question 8
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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 8
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 9
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Moment of inertia is a concept application in the case of :
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 9
The moment of inertia is a physical property that combines the mass and distribution of the particles around the rotation axis.

Hence the option A is correct.

ISRO Draughtsman Civil Mock Test - 8 - Question 10
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Partial safety factors for concrete and steel respectively may be taken as-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 10
Partial safety factor for concrete = 1.5

Partial safety factor for steel = 1.15

Hence the option A is correct.

ISRO Draughtsman Civil Mock Test - 8 - Question 11
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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 11
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 12
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Stalactites and stalagmites are features of
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 12
Stalactite and stalagmite, elongated forms of various minerals deposited from solution by slowly dripping water.

A stalactite hangs like an icicle from the ceiling or sides of a cavern. A stalagmite appears like an inverted stalactite, rising from the floor of a cavern.

Hence the option B is correct.

ISRO Draughtsman Civil Mock Test - 8 - Question 13
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If the thickness of the thinnest outside plate is 20 mm, then the maximum pitch of rivets in tension will be taken as -
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 13
Maximum pitch of rivets in tension = 16t or 200 mm, whichever is less

Here, 16× 20 = 320 mm,

Therefore pitch = 200 mm

Hence the correct answer is option C.

ISRO Draughtsman Civil Mock Test - 8 - Question 14
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The sum of interior angles of a closed traverse is -
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 14
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 15
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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 15
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 16
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Shear span is defined as the zone where
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 16
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 17
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The alum added as a coagulant in water treatment functions better when the raw water is
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 17
To accomplish this, the water is treated with aluminum sulphate, commonly called alum, which serves as a flocculant. Raw water often holds tiny suspended particles that are very difficult for a filter to catch. The alum promotes the coagulation of fine particles, which helps resolve problems of color as well as turbidity.

Hence the correct answer is option B.

ISRO Draughtsman Civil Mock Test - 8 - Question 18
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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 18
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 19
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The submerged unit weight for completely saturated soil is given by-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 19
The submerged unit weight for completely saturated soil is given by

ISRO Draughtsman Civil Mock Test - 8 - Question 20
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The maximum percent of moment redistribution allowed in the RCC beam is-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 20
The maximum percent of moment redistribution allowed in the RCC beam is 30%.
ISRO Draughtsman Civil Mock Test - 8 - Question 21
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Taste and odor in water are, generally, removed by the method of-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 21
Adding powdered activated carbon to water or using granular activated carbon (GAC) in the water filter can remove taste and odor. Powdered activated carbon (PAC) is the preferred method when the taste and odor are moderate and infrequent.
ISRO Draughtsman Civil Mock Test - 8 - Question 22
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The deflection including the effects of temperature creep and shrinkage occurring after the erection of partitions and the application of finishes should not exceed-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 22
The deflection, including the effects of temperature, creep, and shrinkage occurring after the erection of partitions and the application of finishes, should not normally exceed span/350 or 20 mm, whichever is less.
ISRO Draughtsman Civil Mock Test - 8 - Question 23
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Factor of safety is the ratio of-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 23
Factor of safety =Yield stress/ working stress
ISRO Draughtsman Civil Mock Test - 8 - Question 24
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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 24
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 25
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Sand replacement method uses :
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 25
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 26
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The first sight in levelling operation is-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 26
The first sight taken on a levelling staff held at a point of known elevation. B.S. enables the surveyor to obtain HI +sight

Backsight (BS) – short for "backsight reading", the first staff reading taken by the surveyor after the levelling instrument is set up and levelled. B.S is generally taken on the point of known reduced level as on the benchmark or a change point.

Hence, the correct option is (A)

ISRO Draughtsman Civil Mock Test - 8 - Question 27
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The work output of a mason for brickwork in cement mortar for foundation work is roughly expected to be :
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 27
The following may be taken as the approximate quantity of work or out a turn or task for an average artisan per day

Hence, the correct option is (B)

ISRO Draughtsman Civil Mock Test - 8 - Question 28
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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 28

ISRO Draughtsman Civil Mock Test - 8 - Question 29
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The ruling radius of the horizontal curve on a highway with a design speed of 65 kmph, considering allowable superelevation to be 7% and lateral friction as 0.12
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 29

The ruling radius of the horizontal curve on a highway, Ruling =

where, e = allowable superelevation

f = coefficient of lateral friction

ISRO Draughtsman Civil Mock Test - 8 - Question 30
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To obtain a very high strength concrete, one should use very fine-grained:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 8 - Question 30
For high-strength concrete, it is preferable to use high-strength aggregates such as granite aggregates than rounded gravel aggregates.

Heavyweight concrete uses heavy natural aggregates such as barites or magnetite or manufactured aggregates such as iron or lead shot.

Volcanic Scoria is a lightweight aggregate that may be used in interior slabs to reduce weight.

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