# Civil Engineering - Highway Engineering

### Exercise :: Highway Engineering - Section 2

1.

Reinforcement in cement concrete slab of road pavements, is placed

 A. longitudinally B. transversely C. longitudinally and transversely D. in the form of welded wire mesh E. none of these.

Explanation:

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2.

If d is the thickness of a concrete pavement, the equivalent radius b of resisting section for an interior loading, is

 A. b = 0.6 + d2 - 0.675 d B. b = 1.6 + d2 + 0.675 d C. b = 1.6 + d2 - 3.675 d D. b = 1.6 + d2 - 0.675 d

Explanation:

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3.

According to IRC : 52-1973, for a single lane National Highway in hilly region,

 A. width of the carriageway must be 3.75 m B. shoulders on either side must be 1.25 m C. total width of the road-way must be 6.25 m D. total of the above.

Explanation:

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4.

If x% is the gradient of an alignment and y% is the gradient after proper superelevation along a curved portion of a highway, the differential grade along the curve, is

 A. (x + y)% B. (x - y)% C. (y - x)% D. (x x y)% E. (y + x)%

Explanation:

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5.

In an ideal transition curve, the radius of curvature

 A. is constant B. at any point is directly proportional to its distance from the point of commencement C. is inversely proportional to the radius of main curve D. is directly proportional to the radius of main curve