The maximum limit of water absorption for aggregate suitable for road construction is
0.4 %
0.6 %
0.8 %
1.0 %
Q.2.
The maximum design gradient for vertical profile of a road is
ruling gradient
limiting gradient
exceptional gradient
minimum gradient
Q.3.
The ductility value of bitumen for suitability in road construction should not be less than
30 cm
40 cm
50 cm
60 cm
Q.4.
The camber of shoulders in water bound macadam roads is
equal to the cross slope of pavement
less than the cross slope of pavement
greater than the cross slope of pavement
zero
Q.5.
The critical combination of stresses for corner region in cement concrete roads is
Load stress + warping stress frictional stress
Load stress + warping stress + frictional stress
Load stress + warping stress
Load stress + frictional stress
Q.6.
Desire lines are plotted in
traffic volume studies
speed studies
accident studies
origin and destination studies
Q.7.
The fundamental factor in the selection of pavement type is
climatic condition
type and intensity of traffic
subgrade soil and drainage conditions
availability of funds for the construction project
Q.8.
Percentage of free carbon in bitumen is
more than that in tar
less than that in tar
equal to that in tar
none of the above
Q.9.
“Dead Slow” is a
regulatory sign
warning sign
informatory sign
none of the above
Q.10.
The absolute minimum radius of curve for safe operation for a speed ofkmph is
110 m
220 m
440 m
577 m
Q.11.
The provision of traffic signals at intersections
reduces right angled and rear end collisions
increases right angled and rear end collisions
reduces right angled collisions but may increase rear end collisions
reduces rear end collisions but may increase right angled collisions
Q.12.
The thickness of bituminous carpet varies from
20 to 25 mm
50 to 75 mm
75 to 100 mm
100 to 120 mm
Q.13.
If aggregate impact value istopercent, then it is classified as
exceptionally strong
strong
satisfactory for road surfacing
unsuitable for road surfacing
Q.14.
The ruling design speed on a National Highway in plain terrain as per IRC recommendations is
60 kmph
80 kmph
100 kmph
120 kmph
Q.15.
Which of the following methods is preferred for collecting origin and destination data for a small area like a mass business center or a large intersection ?
road side interview method
license plate method
return postcard method
home interview method
Q.16.
Which of the following premix methods is used for base course ?
bituminous carpet
mastic asphalt
sheet asphalt
bituminous bound macadam
Q.17.
When two equally important roads cross roughly at right angles, the suitable shape of central island is
circular
elliptical
tangent
turbine
Q.18.
If ruling gradient is I inand there is also a horizontal curve of radiusm, then the compensated grade should be
3 %
4%
5 %
6%
Q.19.
Which of the following is known as design capacity ?
basic capacity
theoretical capacity
possible capacity
practical capacity
Q.20.
The entrance and exit curves of a rotary have
equal radii and equal widths of pavement
equal radii but pavement width is more at entrance than at exit curve
equal pavement widths but radius is more at entrance curve than at exit curve
different radii and different widths of pavement
Q.21.
The percentage compensation in gradient for ruling gradient ofand horizontal curve of radiusm is
0.1 %
1 %
10%
no compensation
Q.22.
The transition curve used in the horizontal alignment of highways as per IRC recommendations is
spiral
lemniscate
cubic parabola
any of the above
Q.23.
The attainment of super elevation by rotation of pavement about the inner edge of the pavement
is preferable in steep terrain
results in balancing the earthwork
avoids the drainage problem in flat terrain
does not change the vertical alignment of road
Q.24.
The diagram which shows the approximate path of vehicles and pedestrians involved in accidents is known as
spot maps
pie charts
condition diagram
collision diagram
Q.25.
The desirable length of overtaking zone as per IRC recommendation is equal to
overtaking sight distance
two times the overtaking sight distance
three times the overtaking sight distance
five times the overtaking sight distance
Q.26.
In hill roads the side drains arc provided
only on the hill side of road
only on the opposite side of hill
on both sides of road
none of the above
Q.27.
The shoulder provided along the road edge should be
rougher than the traffic lanes
smoother than the traffic lanes
of same colour as that of the pavement
of very low load bearing capacity
Q.28.
Length of a vehicle affects
width of traffic lanes
extra width of pavement and minimum turning radius
width of shoulders and parking facilities
clearance to be provided under structures such as overbridges, under-bridges etc.
Q.29.
The aggregates required for one kilometer length of water bound macadam road per meter width and formm thickness is
8 cubic meter
10 cubic meter
12 cubic meter
15 cubic meter
Q.30.
The terrain may be classified as rolling terrain if the cross slope of land is
upto 10%
between 10% and 25%
between 25% and 60%
more than 60%
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