Civil Engineering Gate Yearwise 

Civil Engineering Gate 2018 Set-2 Questions with Answer

Ques 14 GATE 2018 SET-2

All the members of the planar truss (see figure), have the same properties in terms of area of cross-section (A) and modulus of elasticity (E).

For the loads shown on the truss, the statement that correctly represents the nature of forces in the members of the truss is:

A

There are 3 members in tension, and 2 members in compression

B

There are 2 members in tension, 2 members in compression, and 1 zero-force member

C

There are 2 members in tension, 1 member in compression, and 2 zero-force members

D

There are 2 members in tension, and 3 zero-force members


(d) is the correct answer.

Ques 15 GATE 2018 SET-2

The setting time of cement is determined using

A

Le Chatelier apparatus

B

Briquette testing apparatus

C

Vicat apparatus

D

Casagrande's apparatus


(c) is the correct answer.

Ques 16 GATE 2018 SET-2

A structural member subjected to compression, has both translation and rotation restrained at one end, while only translation is restrained at the other end. As per IS 456: 2000, the effective length factor recommended for design is

A

0.50

B

0.65

C

0.70

D

0.80


(d) is the correct answer.

Ques 17 GATE 2018 SET-2

A vertical load of 10 kN acts on a hinge located at a distance of L/4 from the roller support Q of a beam of length L (see figure).

The vertical reaction at support Q is

A

0.0 kN

B

2.5 kN

C

7.5 kN

D

10.0 kN


(a) is the correct answer.

Ques 18 GATE 2018 SET-2

A flownet below a dam consists of 24 equipotential drops and 7 flow channels. The difference between the upstream and downstream water levels is 6 m. The length of the flow line adjacent to the toe of the dam at exit is 1 m. The specific gravity and void ratio of the soil below the dam are 2.70 and 0.70, respectively. The factor of safety against piping is

A

1.67

B

2.5

C

3.4

D

4


(d) is the correct answer.

Ques 19 GATE 2018 SET-2

The contact pressure and settlement distribution for a footing are shown in the figure.

The figure corresponds to a

A

rigid footing on granular soil

B

flexible footing on granular soil

C

flexible footing on saturated clay

D

rigid footing on cohesive soil


(a) is the correct answer.

Ques 20 GATE 2018 SET-2

Which one of the following statements is NOT correct?

A

When the water content of soil lies between its liquid limit and plastic limit, the soil is said to be in plastic state.

B

Boussinesq's theory is used for the analysis of stratified soil.

C

The inclination of stable slope in cohesive soil can be greater than its angle of internal friction.

D

For saturated dense fine sand, after applying overburden correction, if the Standard Penetration Test value exceeds 15, dilatancy correction is to be applied.


(b) is the correct answer.

Ques 21 GATE 2018 SET-2

The clay mineral, whose structural units are held together by potassium bond is

A

Halloysite

B

Illite

C

Kaolinite

D

Smectite


(b) is the correct answer.

Ques 22 GATE 2018 SET-2

Dupuit's assumptions are valid for

A

artesian aquifer

B

confined aquifer

C

leaky aquifer

D

unconfined aquifer


(d) is the correct answer.

Ques 23 GATE 2018 SET-2

For a given discharge in an open channel, there are two depths which have the same specific energy. These two depths are known as

A

alternate depths

B

critical depths

C

normal depths

D

sequent depths


(a) is the correct answer.

Ques 24 GATE 2018 SET-2

As per IS 10500:2012, for drinking water in the absence of alternate source of water, the permissible limits for chloride and sulphate, in mg/L, respectively are

A

250 and 200

B

1000 and 400

C

200 and 250

D

500 and 1000


(b) is the correct answer.

Ques 25 GATE 2018 SET-2

In the figures, Group I represents the atmospheric temperature profiles (P, Q, R and S) and Group II represents dispersion of pollutants from a smoke stack (1, 2, 3 and 4). In the figures of Group I, the dashed line represents the dry adiabatic lapse rate, whereas the horizontal axis represents temperature and the vertical axis represents the altitude.

The correct match is

A

P-1, Q-2, R-3, S-4

B

P-1, Q-2, R-4, S-3

C

P-1, Q-4, R-3, S-2

D

P-3, Q-1, R-2, S-4


(a) is the correct answer.

Ques 26 GATE 2018 SET-2

Peak Hour Factor (PHF) is used to represent the proportion of peak sub-hourly traffic flow within the peak hour. If 15-minute sub-hours are considered, the theoretically possible range of PHF will be

A

0 to 1.0

B

0.25 to 0.75

C

0.25 to 1.0

D

0.5 to 1.0


(c) is the correct answer.

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