Civil Engineering - Highway Engineering

16. 

Retaining walls are generally constructed with dry rubble stones with 60 cm top width and

A. 1 : 2 front batter
B. 1 : 3 front batter
C. 1 : 4 front batter
D. 1 : 5 front batter

Answer: Option B

Explanation:

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17. 

The ability of a driver to stop the vehicle moving with the designed speed, depends upon:

A. perception time
B. brake reaction time
C. efficiency of the brakes
D. frictional resistance between road surface and vehicle
E. all the above.

Answer: Option E

Explanation:

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18. 

To prevent compressive stresses in a rigid concrete pavement, the joint prvoided, is

A. expansion joint
B. contraction joint
C. hinged joint
D. all the above.

Answer: Option D

Explanation:

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19. 

In case of cement concrete pavements, pick up the incorrect statement

A. tractive resistance is low
B. initial cost of construction is high
C. initial cost of construction is low
D. visibility during nights is high
E. none of these.

Answer: Option C

Explanation:

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20. 

The radius of curvature provided along a transition curve, is

A. minimum at the beginning
B. same throughout its length
C. equal to the radius of circular curve
D. varying from infinity to the radius of circular curve.

Answer: Option D

Explanation:

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