SSC JE Civil Engineering 23-Mar-2021 Shift 2 Paper

Question : 171 of 200

Marks: +1, -0

In a horizontal highway curve, if the width of the highway is 10 m and the outer edge is 40 cm higher with respect to the inner edge, then the super elevation is

1 in 20
1 in 40
1 in 50
1 in 25

Validate

Solution:

Rise of outer edge with respect to inner = 40 cm, W = 10 m = 1000 cm
It is given outer edge is 40 cm higher with respect to inner edge
Then rise of outer edge = e × W

⇒40=e×1000

⇒e=40/1000=1/25

The required super elevation is 1 in 25

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