# Civil Engineering - Highway Engineering

### Exercise :: Highway Engineering - Section 1

26.

According to Highway Research Board of U.S.A. practical land width, is

 A. 2.7 m B. 3.0 m C. 3.3 m D. 3.6 m E. 4.5 m

Explanation:

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27.

Design of flexible pavements is based on

 A. mathematical analysis B. empirical formulae C. a compromise of pure theory and pure empirical formula D. none of these.

Explanation:

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28.

The efficiency of the brakes of a vehicle depends upon

 A. condition of road surface B. condition of the tyres C. presence of the show moisture D. all the above.

Explanation:

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29.

Maximum super-elevation on hill roads should not exceed

 A. 5% B. 7% C. 8% D. 10% E. 15%

Explanation:

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30.

The type of transition curves generally provided on hill roads, is

 A. circular B. cubic parabola C. Lemniscate D. spiral.