Civil Engineering Gate Yearwise 

Civil Engineering Gate 2022 Set-2 Questions with Answer

Ques 14 GATE 2022 SET-2

Match the following attributes of a city with the appropriate scale of measurements.

Which one of the following combinations is correct?

A

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

B

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

C

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

D

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


(a) is the correct answer.

Ques 15 GATE 2022 SET-2

In a solid waste handling facility, the moisture contents (MC) of food waste, paper waste, and glass waste were found to be MCf, MCp, and MCg, respectively. Similarly, the energy contents (EC) of plastic waste, food waste, and glass waste were found to be ECpp, ECf, and ECg, respectively. Which of the following statement(s) is/are correct?

A

MCf>MCp>MCg

B

ECpp>ECf>ECg

C

MCf<MCp<MCg

D

ECpp<ECf<ECg


(a,b) is the correct answer.

Ques 16 GATE 2022 SET-2

To design an optimum municipal solid waste collection route, which of the following is/are NOT desired:

A

Collection vehicle should not travel twice down the same street in a day.

B

Waste collection on congested roads should not occur during rush hours in morning or evening.

C

Collection should occur in the uphill direction.

D

The last collection point on a route should be as close as possible to the waste disposal facility.


(c) is the correct answer.

Ques 17 GATE 2022 SET-2

A 100 mg of HNO3 (strong acid) is added to water, bringing the final volume to 1.0 liter. Consider the atomic weights of H, N, and O, as 1 g/mol, 14 g/mol, and 16 g/mol respectively. The final pH of this water is (Ignore the dissociation of water.)

A

2.8

B

6.5

C

3.8

D

8.5


(a) is the correct answer.

Ques 18 GATE 2022 SET-2

In a city, the chemical formula of biodegradable fraction of municipal solid waste (MSW) is C100H250O80N. The waste has to be treated by forced-aeration composting process for which air requirement has to be estimated. Assume oxygen in air (by weight) =23% and density of air =1.3 kg/m3. Atomic mass: C=12, H=1, O=16, N=14.
C and H are oxidized completely whereas N is converted only into NH3 during oxidation.
For oxidative degradation of 1 tonne of the waste, the required theoretical volume of air (in m3/tonne) will be (round off to the nearest integer)

A

4749

B

8025

C

1418

D

1092


(a) is the correct answer.

Ques 19 GATE 2022 SET-2

The concentration s(x,t) of pollutants in a one-dimensional reservoir at position x and time t satisfies the diffusion equation

on the domain 0≤x≤L, where D is the diffusion coefficient of the pollutants.
The initial condition s(x,0) is defined by the step-function shown in the figure.
The boundary conditions of the problem are given by
∂s(x,t)∂x=0
at the boundary points x=0 and x=L at all times. Consider D=0.1 m2/s, s0=5 μmol/m, and L=10 m.
The steady-state concentration
&stilde;(L/2)=s(L/2,∞)
at the center x=L/2 of the reservoir (in μmol/m) is (in integer)


(5) is the correct answer.

Ques 20 GATE 2022 SET-2

At a municipal waste handling facility, 30 metric ton mixture of food waste, yard waste, and paper waste was available. The moisture content of this mixture was found to be 10%. The ideal moisture content for composting this mixture is 50%. The amount of water to be added to this mixture to bring its moisture content to the ideal condition is ___________ metric ton. (in integer)


(24) is the correct answer.

Ques 21 GATE 2022 SET-2

A sewage treatment plant receives sewage at a flow rate of 5000 m3/day. The total suspended solids (TSS) concentration in the sewage at the inlet of primary clarifier is 200 mg/L. After the primary treatment, the TSS concentration in sewage is reduced by 60%. The sludge from the primary clarifier contains 2% solids concentration. Subsequently, the sludge is subjected to gravity thickening process to achieve a solids concentration of 6%. Assume that the density of sludge, before and after thickening, is 1000 kg/m3.
The daily volume of the thickened sludge (in m3/day) will be __________. (round off to the nearest integer)


(17) is the correct answer.

Ques 22 GATE 2022 SET-2

A sample of air analyzed at 25∘C and 1 atm pressure is reported to contain 0.04 ppm of SO2 Atomic mass of S=32, O=16.
The equivalent SO2 concentration (in μg/m3) will be _______. (round off to the nearest integer)


(105) is the correct answer.

Ques 23 GATE 2022 SET-2

The dimension of dynamic viscosity is:

A

ML-1T-1

B

ML-1T-2

C

ML-2T-2

D

ML0T-1


(a) is the correct answer.

Ques 24 GATE 2022 SET-2

Two discrete spherical particles (P and Q) of equal mass density are independently released in water. Particle P and particle Q have diameters of 0.5 mm and 1.0 mm, respectively. Assume Stokes' law is valid.
The drag force on particle Q will be ________ times the drag force on particle P. (round off to the nearest integer)


(4) is the correct answer.

Ques 25 GATE 2022 SET-2

The movie was funny and I __________.

A

could help laughing

B

couldn’t help laughed

C

couldn’t help laughing

D

could helped laughed


(3) is the correct answer.

Ques 26 GATE 2022 SET-2

The movie was funny and I __________.

A

could help laughing

B

couldn't help laughed

C

couldn't help laughing

D

could helped laughed


(c) is the correct answer.

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