A. less-than 40°C
B. greater than 40°C
C. equal to 40°C
D. none of the above
Related Mcqs:
- The ductility value of bitumen for suitability in road construction should not be less than____________?
A. 30 cm
B. 40 cm
C. 50 cm
D. 60 cm - 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 - 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 - 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 % - Which of the following is considered to be the highest quality construction in the group of black top pavements ?
A. mastic asphalt
B. sheet asphalt
C. bituminous carpet
D. bituminous concrete - In highway construction on super elevated curves, the rolling shall proceed from_________________?
A. sides towards the centre
B. centre towards the sides
C. lower edge towards the upper edge
D. upper edge towards the lower edge
