Highway Engineering
The drain which is provided parallel to roadway to intercept and divert the water from hill slopes is known as

Sloping drain
Cross drain
Side drain
Catch-water drain

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Highway Engineering
The entrance and exit curves of a rotary have

different radii and different widths of pavement
equal radii and equal widths of pavement
equal pavement widths but radius is more at entrance curve than at exit curve
equal radii but pavement width is more at entrance than at exit curve

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