GATE Exam Questions - Section 1 (3)

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GATE Exam Questions - Section 1

There are questions available about GATE exam and in this section
you will find all the questions and problems to solve these MCQs.

17.

The cylinder strength of the concrete is less than the cube strength because of

A.	the difference in the shape of the cross section of the specimens
B.	the difference in the slendeness ratio of the specimens
C.	the friction between the concrete specimens and the steel plate of the testing machine
D.	the cubes are tested without capping but the cylinders are tested with capping

Answer: Option B

Explanation:

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18.

The permissible bending tensile stress in concrete for the vertical wall of an R.C. water tank made of M 25 concrete is :

A.	8.5 N/mm2
B.	6.0 N/mm3
C.	2.5 N/mm2
D.	1.8 N/mm2

Answer: Option D

Explanation:

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19.

Flexible pavements derive stability primarily from :

A.	aggregate interlock, particle friction and cohesion
B.	cohesion alone
C.	the binding power of bituminous materials
D.	the flexural strength of the surface course

Answer: Option A

Explanation:

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20.

In reinforced concrete, pedestal is defined as compression member, whose effective length does not exceed its least dimension by

A.	12 times
B.	3 times
C.	16 times
D.	8 times

Answer: Option B

Explanation:

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21.

A steady discharge of 1 cumec flows uniformly in a rectangular channel 1 m wide at a depth of 250 mm. The slope of the channel bed is :

A.	adverse
B.	steep
C.	critical
D.	mild

Answer: Option A

Explanation:

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22.

A reinforced concrete column contains longitudinal steel equal to 1 percent of net cross-sectional area of the column. Assume modular ratio as 10. The loads carried (using the elastic theory) by the longitudinal steel and the net area of concrete, are P_s and P_c respectively. The ratio P_s/P_c expressed as percent is

A.	0.1
B.	1
C.	1.1
D.	10

Answer: Option D

Explanation:

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23.

In an iceberg, 15% of the volume projects above the sea surface. If the specific weight of sea water is 10.5 kN/m3 , the specific weight of iceberg ir kN/m3 is

A.	12.52
B.	9.81
C.	8.93
D.	7.83

Answer: Option C

Explanation:

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24.

The minimum area of tension reinforcement in a beam shall be greater than

A.	0.85 bd/fy
B.	0.87 fy/bd
C.	0.04 bd
D.	0.4 bd/y

Answer: Option A

Explanation:

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