29.  The minimum width of the pavement of a National Highway should be
A. 4.7 m
B. 5.7 m
C. 6.7 m
D. 7.7 m

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30. The convexity provided to the carriageway between the crown and edge of the pavement, is known as
A. super-elevation
B. camber
C. height of the pavement
D. None of these.

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31. If the difference in elevation of an edge of the pavement 9 m wide and its crown is 15 cm, the camber of the pavement, is
A. 1 in 60
B. 1 in 45
C. 1 in 30
D. 1 in 15

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32.  In scanty rainfall regions, the camber provided will be
A. nil
B. flatter
C. steeper,
D. None of these.

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33. On concrete roads, the camber generally provided, is
A. 1 in 20 to 1 in 24
B. 1 in 30 to 1 in 48
C. 1 in 36 to 1 in 48
D. 1 in 60 to 1 in. 72.

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34.  On earth roads, the camber should preferably be
A. 1 in 20 to 1 in 24
B. 1 in 30 to 1 in 48
C. 1 in 15 to 1 in 20
D. 1 in 10 to 1 in 15

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35.  Excessive camber on pavements may cause
A. deterioration of central portion
B.slip of the speedy vehicles towards the edges
C. erosion of the berms
D. all the above.

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