Civil Engineering - Highway Engineering

21. 

Minimum thickness of the base of a flexible pavement, is

A. 10 cm
B. 15 cm
C. 20 cm
D. 25 cm
E. 30 cm.

Answer: Option A

Explanation:

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22. 

One-way streets are generally provided in crowded cities as, these

A. are inexpensive means of traffic flow
B. reduce delays to vehicles
C. permit higher speed
D. reduce the number of accidents
E. all the above.

Answer: Option E

Explanation:

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23. 

The perpendicular offset from the tan-get to the central point of the circular curve, is

A. R sin θ/2
B. R cos θ/2
C. R (1 - cos θ/2)
D. R (1 - sin θ/2)
E. none of these.

Answer: Option C

Explanation:

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24. 

An Executive Engineer of roads, executes works under direct control of

A. Superintending Engineer
B. Secretary to the Govt
C. Chief Engineer
D. None of these.

Answer: Option A

Explanation:

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25. 

Newly constructed pavement with ordinary Portland cement attains its working strength after

A. 7 days
B. 14 days
C. 21 days
D. 28 days
E. 42 days

Answer: Option D

Explanation:

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