Civil Engineering GATE 2018 Set-2 Questions with Answer

Ques 27 Civil


As per IRC:37-2012, in order to control subgrade rutting in flexible pavements, the parameter to be considered is

A

horizontal tensile strain at the bottom of bituminous layer

B

vertical compressive strain on top of subgrade

C

vertical compressive stress on top of granular layer

D

vertical deflection at the surface of the pavement



Ques 28 Civil


The initial concavity in the load-penetration curve of a CBR test is NOT due to

A

uneven top surface

B

high impact at start of loading

C

inclined penetration plunger

D

soft top layer of soaked soil



Ques 29 Civil


Probability (up to one decimal place) of consecutively picking 3 red balls without replacement from a box containing 5 red balls and 1 white ball is _______.


0.5 to 0.5 is the correct answer.


Ques 30 Civil


The quadratic equation 2x2 - 3x + 3 = 0 is to be solved numerically starting with an initial guess as x0 = 2. The new estimate of x after the first iteration using Newton-Raphson method is _______.


1 to 1 is the correct answer.


Ques 31 Civil


As per IS 456: 2000, the minimum percentage of tension reinforcement (up to two decimal places) required in reinforced-concrete beams of rectangular cross-section (considering effective depth in the calculation of area) using Fe500 grade steel is _______.


0.17 to 0.17 is the correct answer.


Ques 32 Civil


A reinforced-concrete slab with effective depth of 80 mm is simply supported at two opposite ends on 230 mm thick masonry walls. The centre-to-centre distance between the walls is 3.3 m. As per IS 456: 2000, the effective span of the slab (in m, up to two decimal places) is _______.


3.15 to 3.15 is the correct answer.


Ques 33 Civil


A fillet weld is simultaneously subjected to factored normal and shear stresses of 120 MPa and 50 MPa, respectively. As per IS 800: 2007, the equivalent stress (in MPa, up to two decimal places) is _______.


147.50 to 148.50 is the correct answer.


Ques 34 Civil


The intensity of irrigation for the Kharif season is 50% for an irrigation project with culturable command area of 50,000 hectares. The duty for the Kharif season is 1000 hectare/cumec. Assuming transmission loss of 10%, the required discharge (in cumec, up to two decimal places) at the head of the canal is _______.


27.00 to 28.00 is the correct answer.


Ques 35 Civil


A culvert is designed for a flood frequency of 100 years and a useful life of 20 years. The risk involved in the design of the culvert (in percentage, up to two decimal places) is _______.


17.50 to 18.50 is the correct answer.


Ques 36 Civil


The matrix [[2, -4], [4, -2]] has

A

real eigenvalues and eigenvectors

B

real eigenvalues but complex eigenvectors

C

complex eigenvalues but real eigenvectors

D

complex eigenvalues and eigenvectors



Ques 37 Civil


The Laplace transform F(s) of the exponential function, f(t) = eat when t β‰₯ 0, where a is a constant and (s - a) > 0, is

A

1/(s + a)

B

1/(s - a)

C

1/(a - s)

D

∞



Ques 38 Civil


The rank of the following matrix is

A

1

B

2

C

3

D

4



Ques 39 Civil


Two rigid bodies of mass 5 kg and 4 kg are at rest on a frictionless surface until acted upon by a force of 36 N as shown in the figure. The contact force generated between the two bodies is

A

4.0 N

B

7.2 N

C

9.0 N

D

16.0 N



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