Related Questions

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
__________ test is done to find out the softening point of bitumen.
A Impact
B Ball and ring
C Flame
D Viscosity
Penetration test determines the __________ of the grease.
A Stiffness
B Lubricating properties (e.g. oilness)
C Service temperature
D Variation in viscosity with temperature
Road grade bitumen is produced from vacuum residue by its
A Aeration
B Pyrolysis
C Hydrogenation
D Steam reforming
Bitumen felt is used for
A Water proofing
B Damp proofing
C Both (A) and (B)
D Neither (A) nor (B)
The filler used in plastic bitumen, is
A Shale powder
B Talc powder
C Asbestos powder
D Plastic powder
Plastic bitumen is generally used for
A Road pavements
B Expansion joints
C Crack fillings
D None to these
While determining the yield of open wells by the pumping test
A Velocity of recharging water, increases with depression head
B Depression head resulting at critical velocity, is called critical depression head
C Working head is generally limited to ?rd of the critical depression head
D Maximum safe yield of an open well, is expected at critical depression head
In the plate loading test for determining the bearing capacity of soil, the size of square bearing plate should be
A less than 300 mm
B between 300 mm and 750 mm
C between 750 mm and 1 m
D greater than 1 m
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

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