Civil Engineering Gate 2019 Set-2 Questions with Answer

Ques 14 GATE 2019 SET-2


What is curl of the vector field 2x2yi + 5z2j - 4yzk?

A

6zi + 4xj - 2x2k

B

6zi - 8xyj + 2x2yk

C

-14zi + 6yj + 2x2k

D

-14zi - 2x2k


(d) is the correct answer.

Ques 15 GATE 2019 SET-2


A closed thin-walled tube has thickness, t, mean enclosed area within the boundary of the centerline of tube's thickness, Am, and shear stress, τ. Torsional moment of resistance, T, of the section would be

A

0.5τAmt

B

τAmt

C

2τAmt

D

4τAmt


(c) is the correct answer.

Ques 16 GATE 2019 SET-2


A steel column is restrained against both translation and rotation at one end and is restrained only against rotation but free to translate at the other end. Theoretical and design (IS:800-2007) values, respectively, of effective length factor of the column are

A

1.0 and 1.0

B

1.2 and 1.0

C

1.2 and 1.2

D

1.0 and 1.2


(c or d) is the correct answer.

Ques 17 GATE 2019 SET-2


If the fineness modulus of a sample of fine aggregates is 4.3, the mean size of the particles in the sample is between

A

150 μm and 300 μm

B

300 μm and 600 μm

C

1.18 mm and 2.36 mm

D

2.36 mm and 4.75 mm


(c) is the correct answer.

Ques 18 GATE 2019 SET-2


For a channel section subjected to a downward vertical shear force at its centroid, which one of the following represents the correct distribution of shear stress in flange and web?

A

B

C

D


(a) is the correct answer.

Ques 19 GATE 2019 SET-2


Which one of the following options contains ONLY primary air pollutants?

A

Hydrocarbons and nitrogen oxides

B

Hydrocarbons and ozone

C

Ozone and peroxyacetyl nitrate

D

Nitrogen oxides and peroxyacetyl nitrate


(a) is the correct answer.

Ques 20 GATE 2019 SET-2


Analysis of a water sample revealed that the sample contains the following species. CO32-, Na+, H+, PO43-, Al3+, H2CO3, Cl-, Ca2+, Mg2+, HCO3-, Fe2+, OH- Concentrations of which of the species will be required to compute alkalinity?

A

CO32-, H+, HCO3-, OH-

B

CO32-, H+, H2CO3, HCO3-

C

CO32-, H2CO3, HCO3-, OH-

D

H+,H2CO3, HCO3-, OH-


(a) is the correct answer.

Ques 21 GATE 2019 SET-2


Structural failures considered in the mechanistic method of bituminous pavement design are

A

Fatigue and Rutting

B

Fatigue and Shear

C

Rutting and Shear

D

Shear and Slippage


(a) is the correct answer.

Ques 22 GATE 2019 SET-2


A solid sphere of radius, r, and made of material with density, ρs, is moving through the atmosphere (constant pressure, p) with a velocity, v. The net force ONLY due to atmospheric pressure (Fp) acting on the sphere at any time, t, is

A

πr2p

B

4πr2p

C

(4/3)πr3ρs(dv/dt)

D

zero


(d) is the correct answer.

Ques 23 GATE 2019 SET-2


The velocity field in a flow system is given by v = 2i + (x + y)j + (xyz)k. The acceleration of the fluid at (1, 1, 2) is

A

2i + 10k

B

4i + 12k

C

j + k

D

4j + 10k


(d) is the correct answer.

Ques 24 GATE 2019 SET-2


An inflow hydrograph is routed through a reservoir to produce an outflow hydrograph. The peak flow of the inflow hydrograph is PI and the time of occurrence of the peak is tI. The peak flow of the outflow hydrograph is PO and the time of occurrence of the peak is tO. Which one of the following statements is correct?

A

PI < PO and tI < tO

B

PI < PO and tI > tO

C

PI > PO and tI < tO

D

PI > PO and tI > tO


(c) is the correct answer.

Ques 25 GATE 2019 SET-2


An earthen dam of height H is made of cohesive soil whose cohesion and unit weight are c and γ, respectively. If the factor of safety against cohesion is Fc, the Taylor's stability number (Sn) is

A

γH / cFc

B

cFc / γH

C

c / FcγH

D

FcγH / c


(c) is the correct answer.

Ques 26 GATE 2019 SET-2


The notation ""SC"" as per Indian Standard Soil Classification System refers to

A

Sandy clay

B

Silty clay

C

Clayey silt

D

Clayey sand


(d) is the correct answer.

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