A curve tangential to four sight lines and consisting of arcs of different radii is known as?


A.The three transition curves deviate after an angle of

 

(a) 4° (b) 12° (c) 8° (d) 20°

B. In setting out a vertical curve by chord gradient method if the first chord gradient

is 0.16, the fourth chord gradient will be (take c = 0.01)

(a) 0.12 (b) 0.10 (c) 0.09 (d) 0.08.

C. A curve tangential to four sight lines and consisting of arcs of different radii is

known as

(a) one-centred compound curve (b) two-centred compound curve

(c) three-centred compound curve (d) four-centred compound curve

D. Overturning of vehicles on a curve can be avoided by using a

(a) compound curve (b) vertical curve

(c) reverse curve (d) transition curve

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