Civil Engineering Gate Yearwise 

Civil Engineering Gate 2021 Set-2 Questions with Answer

Ques 14 GATE 2021 SET-2

If A is a square matrix then orthogonality property mandates

A

AAT = I

B

AAT = 0

C

AAT = A-1

D

AAT = A2


(a) is the correct answer.

Ques 15 GATE 2021 SET-2

In general, the CORRECT sequence of surveying operations is

A

Field observations → Reconnaissance → Data analysis → Map making

B

Data analysis → Reconnaissance → Field observations → Map making

C

Reconnaissance → Field observations → Data analysis → Map making

D

Reconnaissance → Data analysis → Field observations → Map making


(c) is the correct answer.

Ques 16 GATE 2021 SET-2

In general, the CORRECT sequence of surveying operations is

A

Field observations → Reconnaissance → Data analysis → Map making

B

Data analysis → Reconnaissance → Field observations → Map making

C

Reconnaissance → Field observations → Data analysis → Map making

D

Reconnaissance → Data analysis → Field observations → Map making


(c) is the correct answer.

Ques 17 GATE 2021 SET-2

Strain hardening of structural steel means

A

experiencing higher stress than yield stress with increased deformation

B

strengthening steel member externally for reducing strain experienced

C

strain occurring before plastic flow of steel material

D

decrease in the stress experienced with increasing strain


(a) is the correct answer.

Ques 18 GATE 2021 SET-2

A single story building model is shown in the figure. The rigid bar of mass 'm' is supported by three massless elastic columns whose ends are fixed against rotation. For each of the columns, the applied lateral force (P) and corresponding moment (M) are also shown in the figure. The lateral deflection (δ) of the bar is given by δ = PL3 / 12EI, where L is the effective length of the column, E is the Young's modulus of elasticity and I is the area moment of inertia of the column cross-section with respect to its neutral axis. For the lateral deflection profile of the columns as shown in the figure, the natural frequency of the system for horizontal oscillation is

A

6√(EI / mL3) rad/s

B

(1/L)√(2EI / m) rad/s

C

2√(6EI / mL3) rad/s

D

(2/L)√(EI / m) rad/s


(a) is the correct answer.

Ques 19 GATE 2021 SET-2

Seasoning of timber for use in construction is done essentially to

A

increase strength and durability

B

smoothen timber surfaces

C

remove knots from timber logs

D

cut timber in right season and geometry


(a) is the correct answer.

Ques 20 GATE 2021 SET-2

In case of bids in Two-Envelop System, the correct option is

A

Technical bid is opened first

B

Financial bid is opened first

C

Both (Technical and Financial) bids are opened simultaneously

D

Either of the two (Technical and Financial) bids can be opened first


(a) is the correct answer.

Ques 21 GATE 2021 SET-2

The most appropriate triaxial test to assess the long-term stability of an excavated clay slope is

A

consolidated drained test

B

unconsolidated undrained test

C

consolidated undrained test

D

unconfined compression test


(a) is the correct answer.

Ques 22 GATE 2021 SET-2

As per the Unified Soil Classification System (USCS), the type of soil represented by 'MH' is

A

Inorganic silts of high plasticity with liquid limit more than 50%

B

Inorganic silts of low plasticity with liquid limit less than 50%

C

Inorganic clays of high plasticity with liquid limit less than 50%

D

Inorganic clays of low plasticity with liquid limit more than 50%


(a) is the correct answer.

Ques 23 GATE 2021 SET-2

The ratio of the momentum correction factor to the energy correction factor for a laminar flow in a pipe is

A

1/2

B

2/3

C

1

D

3/2


(b) is the correct answer.

Ques 24 GATE 2021 SET-2

Relationship between traffic speed and density is described using a negatively sloped straight line. If vf is the free-flow speed then the speed at which the maximum flow occurs is

A

0

B

vf/ 4

C

vf / 2

D

vf


(c) is the correct answer.

Ques 25 GATE 2021 SET-2

Determine the correctness or otherwise of the following Assertion [a] and the Reason [r].
Assertion [a]: One of the best ways to reduce the amount of solid wastes is to reduce the consumption of raw materials.
Reason [r]: Solid wastes are seldom generated when raw materials are converted to goods for consumption.

A

Both [a] and [r] are true and [r] is the correct reason for [a]

B

Both [a] and [r] are true but [r] is not the correct reason for [a]

C

Both [a] and [r] are false

D

[a] is true but [r] is false


(d) is the correct answer.

Ques 26 GATE 2021 SET-2

The hardness of a water sample is measured directly by titration with 0.01 M solution of ethylenediamine tetraacetic acid (EDTA) using eriochrome black T (EBT) as an indicator. The EBT reacts and forms complexes with divalent metallic cations present in the water. During titration, the EDTA replaces the EBT in the complex. When the replacement of EBT is complete at the end point of the titration, the colour of the solution changes from

A

blue-green to reddish brown

B

blue to colourless

C

reddish brown to pinkish yellow

D

wine red to blue


(d) is the correct answer.

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