Highway Engineering Multiple Choice Questions and Answers
1. Nagpur road plan formula were prepared by
assuming
a)
rectangular or block road pattern
b) radial
or star and block road pattern
c) radial
or star and circular road pattern
d) radial
or star and grid road pattern
Ans: d
2. Select the correct statement.
a) Nagpur
road plan formula take into account the towns with very large population.
b) Nagpur
road plan has a target road length of 32 km per 100 square km.
c) Second
20-year plan has provided 1600 km of expressways out of the proposed National
highway.
d) Second
20-year plan allowed deduction of length of railway track in the area while
calculating the length of roads.
Ans: c
3. The sequence of four stages of survey in a
highway alignment is
a)
reconnaissance, map study, preliminary survey and detailed survey
b) map
study, preliminary survey, reconnaissance and detailed survey
c) map
study, reconnaissance, preliminary survey and detailed survey
d)
preliminary survey, map study, reconnaissance and detailed survey
Ans: c
4. The shape of the camber, best suited for cement
concrete pavements, is
a) straight
line
b)
parabolic
c)
elliptical
d)
combination of straight and parabolic
Ans: a
5. For water bound macadam roads in localities of
heavy rainfall, the recommended value of camber is
a) 1 in 30
b) 1 in 36
c) 1 in 48
d) 1 in 60
Ans: b
6. The stopping sight distance depends upon
a) total
reaction time of driver
b) speed of
vehicle
c)
efficiency of brakes
d) all of
the above
Ans: d
7. When the path travelled along the road surface is
more than the circumferential movement of the wheels due to rotation, then it
results in
a) slipping
b) skidding
c) turning
d)
revolving
Ans: b
8. Coefficient of friction is less when the pavement
surface is
a) rough
b) dry
c) smooth
and dry
d) smooth
and wet
Ans: d
9. The shoulder provided along the road edge should
be
a) rougher
than the traffic lanes
b) smoother
than the traffic lanes
c) of same
colour as that of the pavement
d) of very
low load bearing capacity
Ans: a
10. Camber
in the road is provided for
a)
effective drainage
b)
counteracting the centrifugal force
c) having
proper sight distance
d) none of
the above
Ans: a
11.
Compared to a level surface, on a descending gradient the stopping sight
distance is
a) less
b) more
c) same
d)
dependent on the speed
Ans: b
12. 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
Ans: b
13. The
desirable length of overtaking zone as per IRC recommendation is equal to
a)
overtaking sight distance
b) two
times the overtaking sight distance
c) three times
the overtaking sight distance
d) five
times the overtaking sight distance
Ans: d
14.
Stopping sight distance is always
a) less
than overtaking sight distance
b) equal to
overtaking sight distance
c) more
than overtaking sight distance
d) none of
the above
Ans: a
15.
Reaction time of a driver
a)
increases with increase in speed
b)
decreases with increase in speed
c) is same
for all speeds
d) none of
the above
Ans: b
16. If the
stopping distance is 60 meters, then the minimum stopping sight distance for
two lane, two way traffic is
a) 30m
b) 60m
c) 120m
d) 180m
Ans: b
17. The
effect of grade on safe overtaking sight distance is
a) to
increase it on descending grades and to decrease it on ascending grades
b) to
decrease it on descending grades and to increase it on ascending grades
c) to
increase it on both descending and ascending grades
d) to
decrease it on both descending and ascending grades
Ans: c
18. 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
Ans: c
19. 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%
Ans: b
20. If b is
the wheel track of a vehicle and h is the height of centre of gravity above
road surface, then to avoid overturning and lateral skidding on a horizontal
curve, the centrifugal ratio should always be
a) less
than b/2h and greater than co-efficient of lateral friction
b) less
than b/2h and also less than co-efficient of lateral friction
c) greater
than b/2h and less than co-efficient of lateral friction
d) greater
than b/2h and also greater than coefficient of lateral friction
Ans: b
21. As per
IRC recommendations, the maximum limit of super elevation for mixed traffic in
plain terrain is
a) 1 in 15
b) 1 in
12.5
c) 1 in 10
d) equal to
camber
Ans: a
22. For the design of super elevation for mixed
traffic conditions, the speed is reduced by
a) 15%
b) 20%
c) 25%
d) 75%
Ans: c
23. On a horizontal curve if the pavement is kept
horizontal across the alignment, then the pressure on the outer wheels will be
a)
more than the
pressure on inner wheels
b) less
than the pressure on inner wheels
c) equal to
the pressure on inner wheels
d) zero
Ans: a
25. For a
constant value of coefficient of lateral friction, the value of required
super-elevation increases with
a) increase
in both speed and radius of curve
b) decrease
in both speed and radius of curve
c) increase
in speed and with decrease in radius of curve
d) decrease
in speed and with increase in radius of curve
Ans: d
26. To
calculate the minimum value of ruling radius of horizontal curves in plains,
the design speed is given by
a) 8 kmph
b) 12kmph
c) 16kmph
d) 20 kmph
Ans: c
27. The
absolute minimum radius of curve for safe operation for a speed of 110 kmph is
a) 110 m
b) 220 m
c) 440 m
d) 577 m
Ans: c
28. The
attainment of super elevation by rotation of pavement about the inner edge of
the pavement
a) is
preferable in steep terrain
b) results
in balancing the earthwork
c) avoids
the drainage problem in flat terrain
d) does not
change the vertical alignment of road
Ans: c
29. Select
the correct statement.
a)
Psychological extra widening depends on the number of traffic lanes.
b)
Mechanical extra widening depends on the speed of vehicle.
c)
Psychological extra widening depends on the length of wheel base.
d)
Psychological extra widening depends on the speed of vehicle.
Ans: d
30. In case
of hill roads, the extra widening is generally provided
a) equally
on inner and outer sides of the curve
b) fully on
the inner side of the curve
c) fully on
the outer side of the curve
d)
one-fourth on inner side and three-fourth on outer side of the curve
Ans: b
31. The transition curve used in the horizontal
alignment of highways as per IRC recommendations is
a) spiral
b)
lemniscate
c) cubic
parabola
d) any of
the above
Ans: a
32. For
design, that length of transition curve should be taken which is
a) based on
allowable rate of change of centrifugal acceleration
b) based on
rate of change of super elevation
c) higher
of (a) and (b)
d) smaller
of (a) and (b)
Ans: c
33. The
maximum design gradient for vertical profile of a road is
a) ruling
gradient
b) limiting
gradient
c)
exceptional gradient
d) minimum
gradient
Ans: a
34. The percentage compensation in gradient for
ruling gradient of 4% and horizontal curve of radius 760 m is
a) 0.1 %
b) 1 %
c) 10%
d) no
compensation
Ans: d
35. If
ruling gradient is I in 20 and there is also a horizontal curve of radius 76 m,
then the compensated grade should be
a) 3 %
b) 4%
c) 5 %
d) 6%
Ans: b
36. The
camber of road should be approximately equal to
a)
longitudinal gradient
b) two
times the longitudinal gradient
c) three
times the longitudinal gradient
d) half the
longitudinal gradient
Ans: d
37. Which
of the following shapes is preferred in a valley curve ?
a) simple
parabola
b) cubic
parabola
c) spiral
d)
lemniscate
Ans: b
38. The
value of ruling gradient in plains as per IRC recommendation is
a) 1 in 12
b) 1 m 15
c) 1 in 20
d) 1 in 30
Ans: d
39. In case
of summit curves, the deviation angle will be maximum when
a) an
ascending gradient meets with another ascending gradient
b) an
ascending gradient meets with a descending gradient
c) a
descending gradient meets with another descending gradient
d) an
ascending gradient meets with a level surface
Ans: b
40. If the
design speed is V kmph and deviation angle is N radians, then the total length
of a valley curve in meters is given by the expression
a) 0.38 N
V3/2
b) 0.38
(NV3)"2
c) 3.8
NV"2
d) 3.8
(NV3)"2
Ans: b
41. If an
ascending gradient of 1 in 50 meets a descending gradient of 1 in 50, the
length of summit curve for a stopping sight distance of 80 m will be
a) zero
b) 64m
c) 80m
d) 60m
Ans: d
42. Highway
facilities are designed for
a) annual
average hourly volume
b) annual
average daily traffic
c)
thirtieth highest hourly volume
d) peak
hourly volume of the year
Ans: c
43.
Enoscope is used to find
a) average
speed
b) spot
speed
c)
space-mean speed
d)
time-mean speed
Ans: b
44. For
highway geometric design purposes the speed used is
a) 15th
percentile
b) 50
""percentile
c) 85th
percentile
d) 98
""percentile
Ans: d
45. Select
the correct statement.
a) Traffic
volume should always be more than traffic capacity.
b) Traffic
capacity should always be more than traffic volume.
c) Spot
speed is the average speed of a vehicle at a specified section.
d) 85th
percentile speed is more than 98th percentile speed.
Ans: b
46. Length
of a vehicle affects
a) width of
traffic lanes
b) extra
width of pavement and minimum turning radius
c) width of
shoulders and parking facilities
d)
clearance to be provided under structures such as overbridges,
under-bridges etc.
Ans: b
47. The
maximum width of a vehicle as recommended by IRC is
a) 1.85m
b) 2.44 m
c) 3.81 m
d) 4.72 m
Ans: b
48. Desire
lines are plotted in
a) traffic
volume studies
b) speed
studies
c) accident
studies
d) origin
and destination studies
Ans: d
49. 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 ?
a) road side
interview method
b) license
plate method
c) return
postcard method
d) home
interview method
Ans: b
50. The
diagram which shows the approximate path of vehicles and pedestrians involved
in accidents is known as
a) spot
maps
b) pie
charts
c)
condition diagram
d)
collision diagram
Ans: d
51. With
increase in speed of the traffic stream, the minimum spacing of vehicles
a)
increases
b)
decreases
c) first
decreases and then increases after reaching a minimum value at optimum speed
d) first
increases and then decreases after reaching a maximum value at optimum speed
Ans: a
52. Which
of the following is known as design capacity ?
a) basic
capacity
b)
theoretical capacity
c) possible
capacity
d)
practical capacity
Ans: a
53. If the
average center to center spacing of vehicles is 20 meters, then the basic
capacity of a traffic lane at a speed of 50 kmph is
a) 2500
vehicles per day
b) 2000
vehicles per hour
c) 2500
vehicles per hour
d) 1000
vehicles per hour
Ans: c
54. With
increase in speed of the traffic stream, the maximum capacity of the lane
a)
increases
b)
decreases
c) first
increases and then decreases after reaching a maximum value at optimum speed
d) first
decreases and then increases after reaching a minimum value at optimum speed
Ans: c
55.
Equivalent factor of passenger car unit (PCU) for a passenger car as per
IRC is
a) 1.0
b) 2.0
c) 0.5
d) 10
Ans: a
56. If the stopping distance and average length of a
vehicle are 18 m and 6 m respectively, then the theoretical maxi¬mum capacity
of a traffic lane at a speed of 10 m/sec is
a) 1500
vehicles per hour
b) 2000
vehicles per hour
c) 2500
vehicles per hour
d) 3000
vehicles per hour
Ans: a
57.
Scientific planning of transportation system and mass transit facilities
in cities should be based on
a) spot
speed data
b) origin
and destination data
c) traffic
volume data
d) accident
data
Ans: b
58. The
diagram which shows all important physical conditions of an accident location
like roadway limits, bridges, trees and all details of roadway conditions is
known as
a) pie
chart
b) spot
maps
c)
condition diagram
d)
collision diagram
Ans: c
59. When
the speed of traffic flow becomes zero,then
a) traffic
density attains maximum value whereas traffic volume becomes zero
b) traffic
density and traffic volume both attain maximum value
c) traffic
density and traffic volume both become zero
d) traffic
density becomes zero whereas traffic volume attains maximum value
Ans: a
60. On a
right angled road intersection with two way traffic, the total number of
conflict points is
a) 6
b) 11
c) 18
d) 24
Ans: d
61. The
background colour of the informatory sign board is
a) red
b) yellow
c) green
d) white
Ans: b
62. Which
of the following is indicated by a warning sign ?
a) level
crossing
b) no
parking
c) end of
speed limit
d)
overtaking prohibited
Ans: a
63.
"Dead Slow" is a
a)
regulatory sign
b) warning
sign
c)
informatory sign
d) none of
the above
Ans: a
64. The
most efficient traffic signal system is
a)
simultaneous system
b)
alternate system
c) flexible
progressive system
d) simple
progressive system
Ans: c
65. The
provision of traffic signals at intersections
a) reduces
right angled and rear end collisions
b)
increases right angled and rear end collisions
c) reduces
right angled collisions but may increase rear end collisions
d) reduces
rear end collisions but may increase right angled collisions
Ans: c
66. Select
the incorrect statement.
a) Stop or
red time of a signal is the sum of go and clearance intervals for the cross
flow.
b) Go or
green time of a signal is the sum of stop and clearance intervals for the cross
flow.
c)
Clearance time is generally 3 to 5 seconds.
d) The
cycle length is normally 40 to 60 seconds for two phase signals.
Ans: b
67. 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
Ans: b
68. The
particular places where pedestrians are to cross the pavement are properly
marked by the pavement marking known
as
a) stop
lines
b) turn
markings
c)
crosswalk lines
d) lane
lines
Ans: c
69. The entrance and exit curves of a rotary have
a) equal
radii and equal widths of pavement
b) equal
radii but pavement width is more at entrance than at exit curve
c) equal
pavement widths but radius is more at entrance curve than at exit curve
d)
different radii and different widths of pavement
Ans: d
70. When
two equally important roads cross roughly at right angles, the suitable shape
of central island is
a) circular
b)
elliptical
c) tangent
d) turbine
Ans: a
71. The
maximum number of vehicles beyond which the rotary may not function efficiently
is
a) 500
vehicles per hour
b) 500
vehicles per day
c) 5000 vehicles per hour
d) 5000
vehicles per day
Ans: c
72. A
traffic rotary is justified where
a) number
of intersecting roads is between 4 and 7
b) space is
limited and costly
c) when
traffic volume is less than 500 vehicles per hour
d) when traffic volume is more than 5000
vehicles per hour
Ans: a
73. When a
number of roads are meeting at a point and only one of the roads is important,
then the suitable shape of
rotary is
a) circular
b) tangent
c)
elliptical
d) turbine
Ans: b
74. Maximum
number of vehicles can be parked with
a) parallel
parking
b) 30°
angle parking
c) 45°
angle parking
d) 90°
angle parking
Ans: d
75. When
the width of kerb parking space and width of street are limited, generally preferred
parking system is
a) parallel
parking
b) 45°
angle parking
c) 65°
angle parking
d) 90°
angle parking
Ans: a
76. As per
IRC recommendations, the average level of illumination on important roads
carrying fast traffic is
a) 10 lux
b) 15 lux
c) 20 lux
d) 30 lux
Ans: d
77. The
most economical lighting layout which is suitable for narrow roads is
a) single
side lighting
b)
staggered system
c) central
lighting system
d) none of
the above
Ans: a
78. The
direct interchange ramp involves
a)
diverging to the right side and merging from left
b)
diverging to the left side and merging from right
c)
diverging to the right side and merging from right
d)
diverging to the left side and merging from left
Ans: c
79. 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
Ans: d
80. Which
of the following tests measures the toughness of road aggregates ?
a) crushing
strength test
b) abrasion
test
c) impact test
d) shape
test
Ans: c
81. Los Angeles testing machine is used to conduct
a) abrasion
test
b) impact
test
c)
attrition test
d) crushing
strength test
Ans: a
82. In CBR
test the value of CBR is calculated at
a) 2.5 mm
penetration only
b) 5.0 mm
penetration only
c) 7.5 mm
penetration only
d)
both 2.5mm and 5.0 mm
penetrations
Ans: d
83. If
aggregate impact value is 20 to 30 percent, then it is classified as
a)
exceptionally strong
b) strong
c) satisfactory
for road surfacing
d)
unsuitable for road surfacing
Ans: c
84. The
maximum allowable Los Angeles abrasion value for high quality surface course is
a) 10%
b) 20 %
c) 30%
d) 45 %
Ans: c
85.
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
Ans: b
86. 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
Ans: c
87. 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 %
Ans: b
88. Which
of the following represents hardest grade of bitumen ?
a) 30/40
b) 60/70
c) 80/100
d) 100/120
Ans: a
89.
Penetration test on bitumen is used for determining its
a) grade
b)
viscosity
c)
ductility
d)
temperature susceptibility
Ans: a
90. 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
Ans: c
91. RC-2,
MC-2 and SC-2 correspond to
a) same
viscosity
b)
viscosity in increasing
order from RC-2 to SC-2
c)
viscosity in decreasing order from RC-2 to SC-2
d) none of
the above
Ans: a
92. The
recommended grade of tar for grouting purpose is
a) RT-1
b) RT-2
c) RT.3
d) RT-5
Ans: d
93.
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
Ans: b
94. For
rapid curing cutbacks, the oil used is
a) gasoline
b) kerosene
oil
c) light
diesel
d) heavy
diesel
Ans: a
95. 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
Ans: b
96. The
group index for a soil, whose liquid limit is 40 percent, plasticity index is
10 percent and percentage passing 75 micron IS sieve is 35, is
a) 0
b) 3
c) 5
d) 7
Ans: a
97. Bottom
most layer of pavement is known as
a) wearing
course
b) base
course
c) sub-base
course
d) subgrade
Ans: d
98.
Flexible pavement distribute the wheel load
a) directly
to subgrade
b) through
structural action
c) through
a set of layers to the subgrade
d) none of
the above
Ans: c
99. The
number of repetitions, which the pavement thickness designed for a given wheel
load should be able to support
during the life of pavement is
a) 1000
b) 10000
c) 100000
d) 1000000
Ans: d
100. Group
index method of design of flexible pavement is
a) a
theoretical method
b) an
empirical method based on physical properties of subgrade soil
c) an
empirical method based on strength characteristics of subgrade soil
d) a semi
empirical method
Ans: b
101. Select
the correct statement.
a) More the
value of group index, less thickness of pavement will be required.
b) More the
value of CBR, greater thickness of pavement will be required.
c) Minimum
and maximum values of group index can be 0 and 20 respectively.
d) all of
the above
Ans: c
102. If the
group index value of subgrade is between 5 and 9, then the subgrade is treated
as
a) good
b) fair
c) poor
d) very
poor
Ans: c
103. Tyre
pressure influences the
a) total
depth of pavement
b) quality
of surface course
c) both the
above
d) none of
the above
Ans: b
104.
Rigidity factor for a tyre pressure greater than 7 kg/cm2 is
a) equal to
1
b) less
than 1
c) greater
than 1
d) zero
Ans: b
105. The critical combination of stresses for corner
region in cement concrete roads is
a) load
stress + warping stress frictional stress
b) load
stress + warping stress + frictional stress
c) load
stress + warping stress
d) load
stress + frictional stress
Ans: c
106. Tie
bars in cement concrete pavements are at
a)
expansion joints
b)
contraction joints
c) warping
joints
d)
longitudinal joints
Ans: d
107. 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
Ans: c
108. The
maximum thickness of expansion joint in rigid pavements is
a) 0
b) 25 mm
c) 50 mm
d) 100 mm
Ans: b
109. 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
Ans: d
110. The
fundamental factor in the selection of pavement type is
a) climatic
condition
b) type and
intensity of traffic
c) subgrade
soil and drainage conditions
d)
availability of funds for the construction project
Ans: b
111. Most
suitable material for highway embankments is
a) granular
soil
b) organic
soil
c) silts
d) clays
Ans: a
112.
Maximum daily traffic capacity of bituminous pavements is
a) 500
tonnes per day
b) 1000
tonnes per day
c) 1500
tonnes per day
d) 2000
tonnes per day
Ans: c
113. The
most suitable equipment for compacting clayey soils is a
a) smooth
wheeled roller
b)
pneumatic tyred roller
c) sheep foot roller
d) vibrator
Ans: c
114. The aggregates required for one kilometer
length of water bound macadam road per meter width and for 10 mm thickness is
a) 8 cubic
meter
b) 10 cubic
meter
c) 12 cubic
meter
d) 15 cubic
meter
Ans: c
115. The
camber of shoulders in water bound macadam roads is
a) equal to
the cross slope of pavement
b) less
than the cross slope of pavement
c) greater
than the cross slope of pavement
d) zero
Ans: a
116. The
binder normally used in flexible pavement construction is
a) cement
b) lime
c) bitumen
d) none of
the above
Ans: c
117. In
highway construction, rolling starts from
a) sides
and proceed to centre
b) centre
and proceed to sides
c) one side
and proceed to other side
d) any of
the above
Ans: a
118. 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
Ans: c
119. 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
Ans: a
120. 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
Ans: b
121. Which
of the following premix methods is used for base course ?
a)
bituminous carpet
b) mastic
asphalt
c) sheet
asphalt
d)
bituminous bound macadam
Ans: d
122. Select
the correct statement.
a) Quantity
of binder required for tack coat is less than that required for prime coat.
b) Prime
coat treatment is given for plugging the voids in water bound macadam during
bituminous road construction.
c) Seal
coat is the final coat over certain previous bituminous pavements.
d) A bitumen primer is a high viscosity cutback.
Ans: d
123. The
suitable surfacing material for a bridge deck slab is
a) sheet
asphalt
b)
bituminous carpet
c) mastic
asphalt
d) rolled
asphalt
Ans: c
124. 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
Ans: d
125. The
thickness of bituminous carpet varies from
a) 20 to 25
mm
b) 50 to 75
mm
c) 75 to
100 mm
d) 100 to
120 mm
Ans: a
126. 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
Ans: b
127. 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
Ans: c
128. The
camber for hill roads in case of bituminous surfacing is adopted as
a) 2%
b) 2.5%
c) 3%
d) 4%
Ans: b
129. The
minimum design speed for hairpin bends in hill roads is taken as
a) 20 kmph
b) 30 kmph
c) 40 kmph
d) 50 kmph
Ans: a
130. The
drain which is provided parallel to roadway to intercept and divert the water
from hill slopes is known as
a) sloping
drain
b)
catchwater drain
c) side
drain
d) cross
drain
Ans: b
131. The
walls which are necessary on the hill side of roadway where earth has to be
retained from slipping is known as
a)
retaining wall
b) breast
wall
c) parapet
wall
d) none of
the above
Ans: b
132. In
hill roads the side drains arc provided
a) only on
the hill side of road
b) only on
the opposite side of hill
c) on both
sides of road
d) none of
the above
Ans: a
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About Author:
I am Thomas Britto here to share my experiences in the civil engineering field to all my readers.Today many students are struggling to buy books at high prices. So I decided to start a blog and share my experience and knowledge with all my readers.
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