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121.

The design criterion for the summit curves is the sight distance to be allowed on the highway.

Correct

Incorrect

122.

Valley curves are required to be introduced at the situations where

A.	a negative grade meets a positive grade	B.	a negative grade meets another milder negative grade
C.	a negative grade meets a steeper positive grade	D.	all of the above

123.

Design of both summit and valley curves is based on the assumption that the

A.	curve is so flat that the length of curve is equal to the length of chord	B.	two portions of the curve along the two tangents on either side of the point of intersection are equal
C.	angles made by the tangent with the horizontal are very small and tangents of those angles are equal to the angles themselves (in radians)	D.	all of the above

124.

Summit curves are required to be introduced at the situations where

A.	a positive grade meets a negative grade	B.	a positive grade meets another milder positive grade
C.	a negative grade meets a steeper negative grade	D.	all of the above

125.

The design criterion for the valley curves is the centrifugal force developed.

Yes

126.

A.	cubic spiral	B.	cubic parabola
C.	lamniscate

127.

The minimum length of a valley curve should be such that the head light beam sight distance is equal to the

A.	stopping sight distance	B.	passing sight distance
C.	braking distance	D.	none of these

128.

According to IRC, the minimum length of the summit or valley curve should not be less than

A.	one-half	B.	one-fourth
C.	two-third

129.

When the valley curves are designed as square parabola, the stopping sight distance should be equal to head-light beam distance.

Agree

Disagree

130.

While deriving the formulae for the length of valley curve, it is assumed that the head light is

A.	0.25 m	B.	0.5 m
C.	0.75 m	D.	1 m