Civil Engineering - Highway Engineering

41. 

The normal road width of National and State highways

A. is kept 45 m
B. in plain and rolling terrain built-up area, is 30 m
C. in mountainous built-up area is 20 m
D. All the above.

Answer: Option D

Explanation:

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42. 

The extra widening of pavements recommended by Indian Roads Congress for hill roads having radius 150 metres, is

A. 1.5 m
B. 1.0 m
C. 0.5 m
D. 0.0 m
E. 2.0 m

Answer: Option D

Explanation:

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43. 

The steepest gradient permitted on roads which, in ordinary conditions, does not exceed, is known

A. ruling gradient
B. maximum gradient
C. exceptional gradient
D. floating gradient
E. all the above.

Answer: Option B

Explanation:

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44. 

For night travel, the length of a valley curve should be such that the head light beam distance is the same as

A. stopping sight distance
B. overtaking sight distance
C. sum of (a) and (b)
D. difference of (a) and (b)

Answer: Option A

Explanation:

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45. 

Stability of hill slopes depends upon

A. nature of the slope
B. angle of the slope
C. geological conditions
D. ground water conditions
E. all the above.

Answer: Option E

Explanation:

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