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Highway Engineering - Interview Questions and Answers

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11. The function of an expansion joint in rigid pavements is to
A. relieve warping stresses
B. relieve shrinkage stresses
C. resist stresses due to expansion
D. allow free expansion
Explanation:
12. In the penetration macadam construction, the bitumen is
A. sprayed after the aggregates are spread and compacted
B. premixed with aggregates and then spread
C. sprayed before the aggregates are spread and compacted
D. none of the above
Explanation:
13. The effect of grade on safe overtaking sight distance is
A. to increase it on descending grades and to decrease it on ascending grades
B. to decrease it on descending grades and to increase it on ascending grades
C. to increase it on both descending and ascending grades
D. to decrease it on both descending and ascending grades
Explanation:
14. Maximum daily traffic capacity of bituminous pavements is
A. 500 tonnes per day
B. 1000 tonnes per day
C. 1500 tonnes per day
D. 2000 tonnes per day
Explanation:
15. The aggregates required for one kilometer length of water bound macadam road per meter width and for 10 mm thickness is
A. 8 cubic meter
B. 10 cubic meter
C. 12 cubic meter
D. 15 cubic meter
Explanation:
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