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141.

Rolling terrain is a terrain with cross-slope of

A.	upto 10%	B.	10 to 25%
C.	25% to 60%	D.	greater than 60%

142.

A curve at the ridge of a hill having a convex shape is called a

A.	valley curve	B.	summit curve
C.	re-entrant curve	D.	salient curve

143.

A curve at the valley between two hills having a concave shape is called a valley curve.

Right

Wrong

144.

A gradient at which no tractive force is required to maintain constant speed by a vehicle is called

A.	average gradient	B.	limiting gradient
C.	exceptional gradient	D.	floating gradient

145.

Steep terrain is a terrain with cross-slope greater than 60 percent.

Correct

Incorrect

146.

Gradients more than the floating gradient result in the

decrease

increase

147.

The width of the class 9 roads is

A.	2.45 m	B.	3.65 m
C.	4.9 m	D.	6 m

148.

Class-9 roads are designed to carry

A.	jeeps	B.	1-tonne vehicles
C.	3-tonne vehicles	D.	10 tonne vehicles

149.

Class-5 roads have a width of

A.	2.45 m	B.	3.65 m
C.	4.9 m	D.	6 m

150.

Class-5 roads are designed to carry 3-tonne vehicles.

Yes