21. In highway construction, rolling starts from________________?
A. sides and proceed to centre
B. centre and proceed to sides
C. one side and proceed to other side
D. any of the above
✅ The correct answer is option A.
Highway Engineering MCQs
22. A traffic rotary is justified where______________?
A. number of intersecting roads is between 4 and 7
B. space is limited and costly
C. when traffic volume is less than 500 vehicles per hour
D. when traffic volume is more than 5000 vehicles per hour
✅ The correct answer is option A.
23. When the width of kerb parking space and width of street are limited, generally preferred parking system is________________?
A. parallel parking
B. 45° angle parking
C. 65° angle parking
D. 90° angle parking
✅ The correct answer is option A.
24. The most economical lighting layout which is suitable for narrow roads is_______________?
A. single side lighting
B. staggered system
C. central lighting system
D. none of the above
✅ The correct answer is option A.
25. 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
✅ The correct answer is option A.
26. On a single lane road with two way traffic, the minimum stopping sight distance is equal to______________?
A. stopping distance
B. two times the stopping distance
C. half the stopping distance
D. three times the stopping distance
✅ The correct answer is option B.
27. The method of design of flexible pavement as recommended by IRC is____________?
A. group index method
B. CBR method
C. Westergaard method
D. Benkelman beam method
✅ The correct answer is option B.
28. Which of the following represents a carpet of sand-bitumen mix without coarse aggregates ?
A. mastic asphalt
B. sheet asphalt
C. bituminous carpet
D. bituminous concrete
✅ The correct answer is option B.
29. Which of the following shapes is preferred in a valley curve ?
A. simple parabola
B. cubic parabola
C. spiral
D. lemniscate
✅ The correct answer is option B.
30. Percentage of free carbon in bitumen is______________?
A. more than that in tar
B. less than that in tar
C. equal to that in tar
D. none of the above
✅ The correct answer is option B.