Highway Engineering
In the penetration macadam construction, the bitumen is

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

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

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

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