Civil Engineering - Highway Engineering

31. 

Pick up the correct statement from the following:

A. Seasonal cycle of traffic volume during April and November, is usually near the annual average
B. Mid-winter seasonal cycle of traffic is least
C. Mid-summer seasonal cycle of traffic is highest
D. All the above.

Answer: Option D

Explanation:

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32. 

The advantage of providing superelevation on roads, is

A. higher speed of vehicles
B. increased volume of traffic
C. reduced maintenance cost of the roads
D. draining off rain water quickly
E. all the above.

Answer: Option E

Explanation:

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33. 

The shape of a vertical curve, is

A. parabolic
B. elliptical
C. circular
D. spiral
E. all the above.

Answer: Option A

Explanation:

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34. 

To prevent movement of moisture from subgrade to road pavement at the same level as that of water-table, thickness of a cut off layer of coarse sand, is

A. 15 cm
B. 20 cm
C. 30 cm
D. 45 cm
E. none of these.

Answer: Option A

Explanation:

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35. 

For Indian conditions, the water bound macadam roads, are suitable if daily traffic does not exceed

A. 2000 tonnes
B. 2500 tonnes
C. 3000 tonnes
D. 3500 tonnes

Answer: Option A

Explanation:

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