Civil Engineering - GATE Exam Questions

11. 

The stress-strain diagram for two materials A and B is shown below.

The following statements are made based on this diagram :

  1. Mateiral A is more brittle than material B.
  2. The ultimate strength of material B is more than that of A.

With reference to the above statements, which of the following applies ?

A. Both the statements are false.
B. Both the statements are true.
C. I is true but II is false.
D. I is false but II is true.

Answer: Option D

Explanation:

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12. 

Base course is used in rigid pavements for

A. prevention of subgrade settlement
B. prevention of slab cracking
C. prevention of pumping
D. prevention of thermal expansion

Answer: Option C

Explanation:

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13. 

A reinforced concrete structure has to be constructed along a sea coast. The minimum grade of concrete to be used as per IS : 456-2000

A. M 15
B. M 20
C. M 25
D. M 30

Answer: Option D

Explanation:

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14. 

The relationship between the length (l) and radius (r) of an ideal transition curve is given by

A. lr
B. lr2
C. l ∝ 1/r
D. l ∝ 1/r2

Answer: Option C

Explanation:

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15. 

The width of expansion joint gap is 2.5 cm in a cement concrete pavement. The spacing between expansion joints for a maximum rise in temperature of 25°C is, (assuming coefficient of thermal expansion of concrete as 10 x 10-6 per degree C),

A. 5 m
B. 50 m
C. 100 m
D. 25 M

Answer: Option A

Explanation:

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