Civil Engineering Gate 2013 Questions with Answer

Ques 40 GATE 2013


The solution for \(\int_{0}^{\pi /6}cos^{4}3\theta sin^{3}6\theta d\theta\) is:

A

0

B

1/15

C

1

D

8/3


(b) is the correct answer.

Ques 41 GATE 2013


Find the value of \(\lambda\) such that the function f(x) is a valid probability density function.   f(x) = \(\lambda\)(x - 1)(2 - x) for 1 ≤ x ≤ 2, otherwise f(x) = 0

A

1/6

B

2/6

C

3/6

D

4/6


(c) is the correct answer.

Ques 42 GATE 2013


As per IS 800:2007, the cross-section in which the extreme fiber can reach the yield stress, but cannot develop the plastic moment of resistance due to failure by local buckling is classified as

A

plastic section

B

compact section

C

semi-compact section

D

slender section


(c) is the correct answer.

Ques 43 GATE 2013


The creep strains are

A

caused due to dead loads only

B

caused due to live loads only

C

caused due to cyclic loads only

D

independent of loads


(a) is the correct answer.

Ques 44 GATE 2013


As per IS 456:2000 for M20 grade concrete and plain bars in tension the design bond stress \(\tau_{bd}\) = 1.2 MPa. Further, IS 456:2000 permits this design bond stress value to be increased by 60% for HSD bars. The stress in the HSD reinforcing steel bars in tension, \(\sigma_s\) = 360 MPa. Find the required development length, \(L_d\) for HSD bars in terms of the bar diameter, \(\phi\).

A

\(36\phi\)

B

\(42\phi\)

C

\(48\phi\)

D

\(54\phi\)


(d) is the correct answer.

Ques 45 GATE 2013


The plane section remains plane assumption in bending theory implies:

A

strain profile is linear

B

stress profile is linear

C

both strain and stress profiles are linear

D

shear deformations are neglected


(a) is the correct answer.

Ques 46 GATE 2013


Two steel columns P (length L and yield strength \(f_y\) = 250 MPa) and Q (length 2L and yield strength \(f_y\) = 500 MPa) have the same cross-sections and end-conditions. The ratio of buckling load of column P to that of column Q is:

A

0.5

B

1.0

C

2.0

D

4.0


(d) is the correct answer.

Ques 47 GATE 2013


The pin-jointed 2-D truss is loaded with a horizontal force of 15 kN at joint S and another 15 kN vertical force at joint U, as shown. Find the force in member RS (in kN) and report your answer taking tension as positive and compression as negative.

A

0

B

15

C

-15

D

None of these


(a) is the correct answer.

Ques 48 GATE 2013


A symmetric I-section (with width of each flange = 50 mm, thickness of each flange = 10 mm, depth of web = 100 mm, and thickness of web = 10 mm) of steel is subjected to a shear force of 100 kN. Find the magnitude of the shear stress (in N/mm^2) in the web at its junction with the top flange.

A

40

B

45

C

50

D

55


(c) is the correct answer.

Ques 49 GATE 2013


The state of 2D-stress at a point is given by the following matrix of stresses:  [matrix of stresses] What is the magnitude of maximum shear stress in MPa?

A

50

B

75

C

100

D

110


(a) is the correct answer.

Ques 50 GATE 2013


All members in the rigid-jointed frame shown are prismatic and have the same flexural stiffness EI. Find the magnitude of the bending moment at Q (in kNm) due to the given loading.

A

0

B

100

C

50

D

None of these


(c) is the correct answer.

Ques 51 GATE 2013


A uniform beam (EI = constant) PQ in the form of a quarter-circle of radius R is fixed at end P and free at the end Q, where a load W is applied as shown. The vertical downward displacement, \(\delta_q\), at the loaded point Q is given by: \(\delta_q = \beta(\frac{WR^3}{EI})\) Find the value of \(\beta\) (correct to 4-decimal places).


(0.5140 to 0.5150) is the correct answer.

Ques 52 GATE 2013


A uniform beam weighing 1800 N is supported at E and F by cable ABCD. Determine the tension (in N) in segment AB of this cable (correct to 1-decimal place). Assume the cables ABCD, BE and CF to be weightless.


(1310.0 to 1312.0) is the correct answer.

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