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Civil Engineering GATE 2022 Set-1 Questions with Answer

Ques 14 Civil

In the context of elastic theory of reinforced concrete, the modular ratio is defined as the ratio of

A

Young's modulus of elasticity of reinforcement material to Young's modulus of elasticity of concrete.

B

Young's modulus of elasticity of concrete to Young's modulus of elasticity of reinforcement material.

C

shear modulus of reinforcement material to the shear modulus of concrete.

D

Young's modulus of elasticity of reinforcement material to the shear modulus of concrete.



Ques 15 Civil

Which of the following equations is correct for the Pozzolanic reaction?

A

Ca(OH)2 + Reactive Superplasticiser + H2O → C-S-H

B

Ca(OH)2 + Reactive Silicon dioxide + H2O → C-S-H

C

Ca(OH)2 + Reactive Sulphates + H2O → C-S-H

D

Ca(OH)2 + Reactive Sulphur + H2O → C-S-H



Ques 16 Civil

Consider the cross-section of a beam made up of thin uniform elements having thickness t (t << a) shown in the figure.

The (x, y) coordinates of the points along the center-line of the cross-section are given in the figure. The coordinates of the shear center of this cross-section are:

A

x = 0, y = 3a

B

x = 2a, y = 2a

C

x = -a, y = 2a

D

x = -2a, y = a



Ques 17 Civil

Four different soils are classified as CH, ML, SP, and SW, as per the Unified Soil Classification System. Which one of the following options correctly represents their arrangement in the decreasing order of hydraulic conductivity?

A

SW, SP, ML, CH

B

CH, ML, SP, SW

C

SP, SW, CH, ML

D

ML, SP, CH, SW



Ques 18 Civil

Let σ'v and σ'h denote the effective vertical stress and effective horizontal stress, respectively. Which one of the following conditions must be satisfied for a soil element to reach the failure state under Rankine's passive earth pressure condition?

A

σ'v< σ'h

B

σ'v > σ'h

C

σ'v = σ'h

D

σ'v + σ'h



Ques 19 Civil

With respect to fluid flow, match the following in Column X with Column Y:

Which one of the following combinations is correct?

A

(P)-(II), (Q)-(IV), (R)-(I), (S)-(III)

B

(P)-(III), (Q)-(IV), (R)-(I), (S)-(II)

C

(P)-(IV), (Q)-(II), (R)-(I), (S)-(III)

D

(P)-(II), (Q)-(IV), (R)-(III), (S)-(I)



Ques 20 Civil

Let ψ represent soil suction head and K represent hydraulic conductivity of the soil. If the soil moisture content increases, which one of the following statements is TRUE?

A

ψ decreases and K increases.

B

ψ increases and K decreases.

C

Both ψ and K decrease.

D

Both ψ and K increase.



Ques 21 Civil

A rectangular channel with Gradually Varied Flow (GVF) has a changing bed slope. If the change is from a steeper slope to a steep slope, the resulting GVF profile is

A

S3

B

S1

C

S2

D

either S1 or S2, depending on the magnitude of the slopes



Ques 22 Civil

The total hardness in raw water is 500 milligram per liter as CaCO3. The total hardness of this raw water, expressed in milligram equivalent per liter, is _______. (Consider the atomic weights of Ca, C, and O as 40 g/mol, 12 g/mol and 16 g/mol respectively.)

A

10

B

100

C

1

D

5



Ques 23 Civil

An aerial photograph is taken from a flight at a height of 3.5 km above mean sea level, using a camera of focal length 152 mm. If the average ground elevation is 460 m above mean sea level, then the scale of the photograph is

A

1:20000

B

1:20

C

1:100000

D

1:2800



Ques 24 Civil

A line between stations P and Q laid on a slope of 1 in 5 was measured as 350 m using a 50 m tape. The tape is known to be short by 0.1 m. The corrected horizontal length (in m) of the line PQ will be

A

342.52

B

349.30

C

356.20

D

350.70



Ques 25 Civil

The matrix M is defined as

and has eigenvalues 5 and -2. The matrix Q is formed as
Q = M3 - 4M2 - 2M.
Which of the following is/are the eigenvalue(s) of matrix Q?

A

15

B

25

C

-20

D

-30



Ques 26 Civil

For wastewater coming from a wood pulping industry, Chemical Oxygen Demand (COD) and 5-day Biochemical Oxygen Demand (BOD5) were determined. For this wastewater, which of the following statement(s) is/are correct?

A

COD > BOD5

B

COD ≠ BOD5

C

COD < BOD5

D

COD = BOD5



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