Highway Engineering
In the penetration macadam construction, the bitumen is

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

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Highway Engineering
The direct interchange ramp involves

diverging to the right side and merging from left
diverging to the left side and merging from right
diverging to the right side and merging from right
diverging to the left side and merging from left

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