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.Management Sciences
Category: Highway Engineering
The ruling design speed on a National Highway in plain terrain as per IRC recommendations is_____________?
A. 60 kmph
B. 80 kmph
C. 100 kmph
D. 120 kmph
The terrain may be classified as rolling terrain if the cross slope of land is______________?
A. upto 10%
B. between 10% and 25%
C. between 25% and 60%
D. more than 60%
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 %
In soils having same values of plasticity index, if liquid limit is increased, then_____________?
A. compressibility and permeability decrease and dry strength increases
B. compressibility, permeability and dry strength decrease
C. compressibility, permeability and dry strength increase
D. compressibility and permeability increase and dry strength decreases
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
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
For the construction of water bound macadam roads, the correct sequence of operations after spreading coarse aggregates is________________?
A. dry rolling, wet rolling, application of screening and application of filler
B. dry rolling, application of filler, wet rolling and application of screening
C. dry rolling, application of screening, wet rolling and application of filler
D. dry rolling, application of screening, application of filler and wet rolling
The maximum spacing of contraction joints in rigid pavements is_____________?
A. 2.5 m
B. 3.5 m
C. 4.5 m
D. 5.5m
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
Centre line markings are used_____________?
A. to designate traffic lanes
B. in roadways meant for two way traffic
C. to indicate that overtaking is not permitted
D. to designate proper lateral placement of vehicles before turning to different directions
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