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Civil Engineering (CE) Exam  >  Civil Engineering (CE) Tests  >  ISRO Draughtsman Civil Mock Test Series 2025  >  ISRO Draughtsman Civil Mock Test - 1 - Civil Engineering (CE) MCQ

ISRO Draughtsman Civil Mock Test - 1 - Civil Engineering (CE) MCQ


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30 Questions MCQ Test ISRO Draughtsman Civil Mock Test Series 2025 - ISRO Draughtsman Civil Mock Test - 1

ISRO Draughtsman Civil Mock Test - 1 for Civil Engineering (CE) 2025 is part of ISRO Draughtsman Civil Mock Test Series 2025 preparation. The ISRO Draughtsman Civil Mock Test - 1 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The ISRO Draughtsman Civil Mock Test - 1 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 - 1 below.
Solutions of ISRO Draughtsman Civil Mock Test - 1 questions in English are available as part of our ISRO Draughtsman Civil Mock Test Series 2025 for Civil Engineering (CE) & ISRO Draughtsman Civil Mock Test - 1 solutions in Hindi for ISRO Draughtsman Civil Mock Test Series 2025 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 - 1 | 80 questions in 90 minutes | Mock test for Civil Engineering (CE) preparation | Free important questions MCQ to study ISRO Draughtsman Civil Mock Test Series 2025 for Civil Engineering (CE) Exam | Download free PDF with solutions
ISRO Draughtsman Civil Mock Test - 1 - Question 1
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The operation of leveling across any river is termed as

Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 1
Levelling from both the reciprocal ends eliminates the error caused due to curvature and refraction.
ISRO Draughtsman Civil Mock Test - 1 - Question 2
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Broadly spaced contour lines on a map show that the area is

Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 2
Contour lines that are relatively close together indicate a slope that is fairly steep. Contour lines that are further apart indicate a slope that is relatively flat. The area of the map above boxed in orange shows an area that has a fairly steep slope, while the area boxed in purple is a relatively flat area.
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ISRO Draughtsman Civil Mock Test - 1 - Question 3
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The flow in the open channel is turbulent if the Reynolds number is:

Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 3
The flow in the open channel

(Re≥2000→ Flow is Turbulent )

ISRO Draughtsman Civil Mock Test - 1 - Question 4
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When the plastic limit of soil is greater than the liquid limit, then the plasticity index is reported as:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 4
Plasticity index (IP=ωL−ωP)

When the plastic limit of soil is greater than the liquid limit, then the plasticity index is reported as zero.

ISRO Draughtsman Civil Mock Test - 1 - Question 5
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Plywood is made from-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 5

Plywood is made from common timber. It is a type of engineered wood product manufactured from thin layers or "plies" of wood veneer that are glued together with adjacent layers having their wood grain rotated up to 90 degrees to one another. This cross-graining technique enhances the strength and stability of the plywood, making it suitable for various applications in construction, furniture-making, and other industries.

ISRO Draughtsman Civil Mock Test - 1 - Question 6
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The modular ratio M is given by:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 6
The modular ratio m has the value

(m=280/3σcbc)

Hence the option C is correct.

ISRO Draughtsman Civil Mock Test - 1 - Question 7
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The relative density of soil samples given by:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 7
Relative density is an index that quantifies the degree of packing between the loosest and densest possible state of coarse grain soil. It is experimentally determined and driven by,

Hence the correct answer is option B.

ISRO Draughtsman Civil Mock Test - 1 - Question 8
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The boundary between the pavement and shoulder in known as:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 8
Kerbs indicate the boundary between the carriageway and the shoulder or islands or footpaths.

Hence the correct answer is option C.

ISRO Draughtsman Civil Mock Test - 1 - Question 9
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The unit of duty is -
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 9
Duty is the area of land that can be irrigated with a unit volume of water supplied across the base period. It is calculated in a hectare.
ISRO Draughtsman Civil Mock Test - 1 - Question 10
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Rapid hardening Portland cement possesses:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 10
Rapid hardening Portland cement is similar to ordinary Portland cement except that it is ground finer, possesses more (C3S), and less (C2S) than ordinary Portland cement.

Hence the correct answer is option C.

ISRO Draughtsman Civil Mock Test - 1 - Question 11
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Fixed end moment due to a point load P acting at the midpoint of the beam having length L is:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 11

ISRO Draughtsman Civil Mock Test - 1 - Question 12
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A structure has two degrees of indeterminacy. The number of plastic hinges that would be formed at complete collapse is
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 12
Number of plastic hinges required for collapse = degree of static indeterminacy + 1 = 2 + 1 = 3.

Hence the correct answer is option A.

ISRO Draughtsman Civil Mock Test - 1 - Question 13
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The curve provided at the change of gradient is called-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 13
When an up gradient of a highway meets a downgrade, the vertical curve is provided.

Hence the correct answer is option D.

ISRO Draughtsman Civil Mock Test - 1 - Question 14
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Which eccentric load, if placed within the central core shown in the figures below, does not produce tension in the column cross-section?
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 14

The eccentric load within the central core shown in the area below does not cause strain in the column cross-section.

Hence the correct answer is option D.

ISRO Draughtsman Civil Mock Test - 1 - Question 15
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A fully saturated soil has a water content of 200%. If G = 2.6, the void ratio is-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 15
Using wG = Se, here S = 1

e = 2 × 2.6 = 5.2

ISRO Draughtsman Civil Mock Test - 1 - Question 16
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Contour interval on a map sheet denotes-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 16
A contour line is a line drawn on a topographic map to indicate ground elevation or depression. A contour interval is a vertical distance or difference in height between contour lines. Index contours are bold or thicker lines that appear at every fifth contour line.
ISRO Draughtsman Civil Mock Test - 1 - Question 17
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Concrete is unsuitable for compaction by vibration if it is-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 17
Concrete is unsuitable for compaction by vibration if it is Plastic.
ISRO Draughtsman Civil Mock Test - 1 - Question 18
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Net sectional area of a tension member is equal to its gross section area-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 18
The net area at any section is equal to the gross area minus the deduction for holes at that section. The deduction for the hole is the product of the hole diameter and the thickness of the material.
ISRO Draughtsman Civil Mock Test - 1 - Question 19
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The size of modular bricks are :
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 19
Standard Size of MODULAR BRICK = 19 × 9 × 9 cm.

NOMINAL size of MODULAR BRICK = 20 × 10 × 10 cm.

ISRO Draughtsman Civil Mock Test - 1 - Question 20
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The flow in the open channel is turbulent if the Reynolds Number is:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 20
While laminar flow is "orderly," turbulent flow is "Random" and "Chaotic.” It is also found that a flow in a pipe is laminar if the Reynolds Number (based on the diameter of the pipe) is less than 2100 and is turbulent if it is greater than 4000.
ISRO Draughtsman Civil Mock Test - 1 - Question 21
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In a laminar 2-D flow of viscous fluid Couette flow is defined as
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 21
Couette flow is defined as a flow of very small value of Reynold's number between two plates, one is fixed and the other is moving.

Hence, the correct option is (D)

ISRO Draughtsman Civil Mock Test - 1 - Question 22
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The brickwork is not measured in m3 in case of-
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 22
Brickwork in foundation, plinth, arches, and superstructure are measured in a cubic meter.

  • While Brickwork for thin partition walls is measured in a square meter.

  • Brick walls are measured in square meter if the thickness of the wall is half brick or as a partition wall.

  • For one or more than one thick brick wall, brickwork is measured in a cubic meter.

Hence, the correct option is (B)

ISRO Draughtsman Civil Mock Test - 1 - Question 23
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Which of the following is known as a timber that is obtained after felling a tree?
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 23
Rough timber indicates timber which is obtained after felling a tree. Converted timber indicates timber which is a swan and cut into suitable commercial sizes Standing timber indicates timber contained in a living tree.

Hence, the correct option is (A)

ISRO Draughtsman Civil Mock Test - 1 - Question 24
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In Linear Arch :
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 24
An arch in which the internal forces are purely axial is called a linear arch. If an arch is to take loads, say W1, W2, and W3 and a vector diagram and funicular polygon are plotted, the funicular polygon is known as the linear arch or theoretical arch.

The polar distance 'it represents the horizontal thrust.

The links AC, CD, DE and EB will br under compression and there will be no bending moment. If an arch of this shape ACDEB is provided, there will be no bending moment.

Hence, the correct option is (D)

ISRO Draughtsman Civil Mock Test - 1 - Question 25
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Lacey's regime theory is not applicable to:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 25
Initial Regime

A channel is said to be in initial regime condition when only the bed slope of the channel gets affected by silting and scouring and other parameters are independent even in non-silting and non-scouring velocity conditions. It may be due to the absence of incoherent alluvium. According to Lacey’s, regime theory is not applicable to initial regime conditions.

Hence, the correct option is (B)

ISRO Draughtsman Civil Mock Test - 1 - Question 26
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Which of the following characteristics is the same for both ordinary Portland cement and rapid hardening cement:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 26

Hence, the correct option is (C)

ISRO Draughtsman Civil Mock Test - 1 - Question 27
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Velocity distribution profile for laminar flow between parallel plates is:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 27

Velocity distribution profile equation is written as:

It is a parabolic equation, So the velocity distribution is parabolic.

ISRO Draughtsman Civil Mock Test - 1 - Question 28
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To control vehicular pollution from exhaust of vehicles, the following is fitted:
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 28
Catalytic Convertor is a vehicular pollution control device used in automobiles, which converts the toxic gases pollutants present in engine exhaust to less toxic pollutants by filtering or absorbing by a catalyst & also a chemical reaction.

It converts nitrogen oxide, carbon monoxide & hydrocarbon like harmful products into carbon dioxide, water vapor & nitrogen gas like less harmful products.

Electrostatic precipitator: It is a device that removes suspended dust particles from a gas or exhaust by applying a high-voltage electrostatic charge and collecting the particles on charged plates.

Cyclone separators are separation devices (dry scrubbers) that use the principle of inertia to remove particulate matter from flue gases.

A bag filter is an air pollution control device and dust collector that removes particulates out of air or gas released from commercial processes or combustion for electricity generation.

ISRO Draughtsman Civil Mock Test - 1 - Question 29
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As per IS 800:2007, in a bolted joint, to ensure that the effect of bending stress is less than the specified value in the code, the grip length should be
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 29

As per IS 800:2007, in a bolted joint to ensure that the effect of bending stress is less than the specified value in the code, the grip length, Lg [/ngtr?] 5d

where d = diameter of the bolt

To take care of additional bending stress developed in the connection,

5d < Lg <  8d

If  Lg > 8d then the section should be redesigned.

ISRO Draughtsman Civil Mock Test - 1 - Question 30
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Which of the following statements is true?

A. Workability reduces with time.

B. Workability does not reduce with time.

C. Workability remains constant with time.
Detailed Solution for ISRO Draughtsman Civil Mock Test - 1 - Question 30
As time passes the fresh concrete gets stiffened because some of the water used to mix the concrete gets evaporated and some get absorbed by the aggregates.

Thus, the workability of concrete reduces with time.

This loss of workability with time is known as slump loss.

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