Highway Engineering
In the penetration macadam construction, the bitumen is

None of these
Sprayed before the aggregates are spread and compacted
Sprayed after the aggregates are spread and compacted
Premixed with aggregates and then spread

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Highway Engineering
The entrance and exit curves of a rotary have

equal radii but pavement width is more at entrance than at exit curve
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

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Highway Engineering
The effect of grade on safe overtaking sight distance is

to increase it on descending grades and to decrease it on ascending grades
to decrease it on descending grades and to increase it on ascending grades
to decrease it on both descending and ascending grades
to increase it on both descending and ascending grades

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