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221.

A compound curve consists of two arcs of equal radii bending in the same direction.

Right

Wrong

222.

When the centres of the arcs lie on the opposite sides of the common tangent at the junction of the two curves, it is known as a

A.	simple curve	B.	vertical curve
C.	compound curve	D.	reverse curve

223.

A simple circular cruve is designated by the

A.	radius of the curve	B.	cruvature of the curve
C.	angle subtended at the centre by a chord of any length	D.	angle subtended at the centre by a chord of particular length

224.

The degree of the curve is the angle subtended by a chord of

A.	15 m	B.	20 m
C.	25 m	D.	30 m

225.

When R is the radius of the curve (in metres), D is the degree of curve (in degrees) and length of the chord is 30 m, then the relation between R and D is

A.	R = 1520/D	B.	R = 1720/D
C.	R = 4500/D	D.	R = 5400 / D

226.

The angle between the back tangent and forward tangent of a curve is known as

A.	deflection angle	B.	central angle
C.	angle of intersection	D.	none of these

227.

The angle by which the forward tangent deflects from the back tangent of a curve is called

A.	deflection angle	B.	central angle
C.	angle of intersection	D.	none of these

228.

A deflection angle is

A.	less than 90?	B.	more than 90? but less than 180?
C.	equal to the difference between the angle of intersection and 180?	D.	equal to the difference between the angle of intersection and 360?

229.

The length of peg interval for flat curves is

A.	15 m	B.	20 m
C.	25 m	D.	30 m

230.

When the length of a chord is less than the peg interval, it is known as

A.	small chord	B.	short chord
C.	sub-chord	D.	normal chord