A. 30 cm
B. 40 cm
C. 50 cm
D. 60 cm
Related Mcqs:
- Softening point of bitumen to be used for read construction at a place where maximum temperature is 40° C should be______________?
A. less-than 40°C
B. greater than 40°C
C. equal to 40°C
D. none of the above - 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 - When the bituminous surfacing is done on already existing black top road or over existing cement concrete road, the type of treatment to be given is________________?
A. seal coat
B. tack coat
C. prime coat
D. spray of emulsion - The maximum limit of water absorption for aggregate suitable for road construction is____________?
A. 0.4 %
B. 0.6%
C. 0.8 %
D. 1.0 % - 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 - Which of the following represents hardest grade of bitumen ?
A. 30/40
B. 60/70
C. 80/100
D. 100/120 - Bitumen of grade 80/100 means______________?
A. its penetration value is 8 mm
B. its penetration value is 10 mm
C. its penetration value is 8 to 10 mm
D. its penetration value is 8 to 10 cm - Penetration test on bitumen is used for determining its_____________?
A. grade
B. viscosity
C. ductility
D. temperature susceptibility - 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 - 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
