Civil Engineering - Highway Engineering

21. 

If V is the velocity in km.p.h., t the brake reaction time in seconds and η the efficiency of the brakes, the stopping distance S of the vehicle, is

A.
B.
C.
D.

Answer: Option C

Explanation:

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22. 

During last phase of the reconnaissance, details of the grade line is recorded on 2 metre poles to indicate

A. direction of the proposed alignment
B. distance between the previous and forward pegs
C. relative elevations of pegs
D. all the above.

Answer: Option D

Explanation:

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23. 

Concrete pavement is provided if daily traffic per lane exceeds

A. 500 tonnes
B. 750 tonnes
C. 1000 tonnes
D. 1250 tonnes
E. 1300 tonnes

Answer: Option C

Explanation:

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24. 

If d is the economic designed depth of a slab, the thickness of the cement concrete pavement slab at interior, is kept

A. 1.275 d
B. 1.125 d
C. 0.85 d
D. 0.75 d
E. 0.60 d

Answer: Option C

Explanation:

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25. 

If the elevations along a road increase, the slope of the road along the longitudinal direction, is known as

A. gradient
B. grade
C. positive grade
D. negative grade.

Answer: Option A

Explanation:

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