Highway Engineering
When the bituminous surfacing is done on already existing black top road or over existing cement concrete road, the type of treatment given is

Tack coat
Spray of emulsion
Prime coat
Seal coat

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Highway Engineering
In case of summit curves, the deviation angle will be maximum when

an ascending gradient meets with a level surface
a descending gradient meets with another descending gradient
an ascending gradient meets with another ascending gradient
an ascending gradient meets with a descending gradient

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