Civil Engineering - Highway Engineering

51. 

The length of a transition curve, is governed by

A. rate of change of radial acceleration
B. rate of change of super-elevation
C. both (a) and (b)
D. neither (a) nor (b)

Answer: Option C

Explanation:

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52. 

Along horizontal curves, if centrifugal force exceeds lateral friction, vehicles may

A. skid
B. slip
C. not be affected
D. none of these.

Answer: Option A

Explanation:

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53. 

A subsidiary area in a carriageway placed so as to control the movement of the traffic, is

A. median strip
B. island
C. flower bed
D. refuge.

Answer: Option B

Explanation:

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54. 

Pick up the incorrect statement from the following. If water cement ratio is

A. increased, strength of concrete increases
B. decreased, strength of concrete increases
C. increased, strength of concrete is not affected
D. none of these.

Answer: Option C

Explanation:

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55. 

Ruling gradient on hill roads 300 m above M.S.L. is kept

A. 4%
B. 5%
C. 6%
D. 7%
E. 8%

Answer: Option B

Explanation:

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