Highway Engineering Multiple choice Questions
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 formulae 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 20year plan has provided 1600 km
of expressways out of the proposed National highway.
d) Second 20year 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 the 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 traveled along the road the 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 the 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 an 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 the land is
a) up to 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 the centre of gravity above the 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
coefficient of lateral friction
b) less than b/2h and also less than
coefficient of lateral friction
c) greater than b/2h and less than the coefficient
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 superelevation 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 superelevation 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 the coefficient of
lateral friction, the value of required superelevation 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 a decrease in the radius of the curve
d) decrease in speed and with an increase in the radius of the curve
Ans: d
26. To calculate the minimum value of the ruling radius of horizontal curves in plains, the design speed is given by
a) 8 kmph
b) 12 kmph
c) 16 kmph
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 superelevation 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 the 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 the vehicle.
c) Psychological extra widening depends on the
length of the wheelbase.
d) Psychological extra widening depends on
the speed of the vehicle.
Ans: d
30. In the 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 the inner side and three fourth
on the outer side of the curve
Ans: b
32. 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
33. 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
superelevation
c) higher of (a) and (b)
d) smaller of (a) and (b)
Ans: c
34. 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
35. 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
36. If the ruling gradient is 1 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
37. The camber of the 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
38. Which of the following shapes is
preferred in a valley curve?
a) simple parabola
b) cubic parabola
c) spiral
d) lemniscate
Ans: b
39. 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
40. In the 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
41. 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
42. 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
43. 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
44. Enoscope is used to find
a) average speed
b) spot speed
c) space mean speed
d) time-mean speed
Ans: b
45. For highway geometric design purposes
the speed used is
a) 15th percentile
b) 50th percentile
c) 85th percentile
d) 98th percentile
Ans: c
46. 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
47. 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
48. 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
49. Desire lines are plotted in
a) traffic volume studies
b) speed studies
c) accident studies
d) origin and destination studies
Ans: d
50. 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) roadside interview method
b) license plate method
c) return postcard method
d) home interview method
Ans: b
52. 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
53. With an increase in the 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
55. Which of the following is known as
design capacity?
a) basic capacity
b) theoretical capacity
c) possible capacity
d) practical
capacity
Ans: a
56. 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
57. With an increase in the 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
58. Equivalent factor of the 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
59. If the stopping distance and average
length of a vehicle are 18 m and 6 m respectively, then the theoretical maximum 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
60. 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
61. The diagram which shows all the 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
62. When the speed of traffic flow becomes zero,
then
a) traffic density attains a 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 a maximum value
Ans: a
63. 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
64. The background colour of the
informatory sign board is
a) red
b) yellow
c) green
d) white
Ans: b
65. 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
66. "Dead Slow" is a
a) regulatory sign
b) warning sign
c) informatory sign
d) none of the
above
Ans: a
67. The most efficient traffic signal
system is
a) simultaneous system
b) alternate system
c) flexible progressive system
d) simple progressive system
Ans: c
68. 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
69. 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
70. Center 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
71. 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
73. 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
74. 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
75. 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
76. 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
77. 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
78. 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
79. 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
80. 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
81. 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
82. 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
83. 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
84. 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
85. Los Angeles testing machine is used to
conduct
a) abrasion test
b) impact test
c) attrition test
d) crushing
strength test
Ans: a
87. 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 2.5~mm and 5.0 mm penetrations
Ans: d
88. 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
89. The maximum allowable Los Angeles
abrasion value for high quality surface course is
a) 10%
b) 20 %
c) 30%
d) 45 %
Ans: c
90. 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
91. 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
92. 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
93. Which of the following represents
hardest grade of bitumen?
a) 30/40
b) 60/70
c) 80/100
d) 100/120
Ans: a
94. Penetration test on bitumen is used for
determining its
a) grade
b) viscosity
c) ductility
d) temperature susceptibility
Ans: a
95. 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
96. RC2, MC2 and SC2 correspond to
a) same viscosity
b)
viscosity in increasing order from RC2 to SC2
c) viscosity in decreasing order from RC2 to SC2
d) none of the above
Ans: a
97. The recommended grade of tar for
grouting purpose is
a) RT1
b) RT2
c) RT.3
d) RT5
Ans: d
98. 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
99. For rapid curing cutbacks, the oil used
is
a) gasoline
b) kerosene oil
c) light diesel
d) heavy diesel
Ans: a
100. 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
101. The group index for a soil, whose
liquid limit is 40 percent, plasticity index is 10 percent and percentage
passing 75 microns IS sieve is 35, is
a) 0
b) 3
c) 5
d) 7
Ans: a
102. Bottom most layer of pavement is known
as
a) wearing course
b) base course
c) subbase course
d) subgrade
Ans: d
103. 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
104. 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
105. 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
106. Select the correct statement.
a) More the value of the group index, less the thickness of pavement will be required.
b) More the value of CBR, greater the 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
107. 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
108. Tyre pressure influences the
a) total depth of pavement
b) quality of the surface course
c) both the above
d) none of the above
Ans: b
109. 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
115. 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
116. Tie bars in cement concrete pavements
are at
a) expansion joints
b) contraction joints
c) warping joints
d) longitudinal
joints
Ans: d
117. 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
118. The maximum thickness of the expansion
joint in rigid pavements is
a) 0
b) 25 mm
c) 50 mm
d) 100 mm
Ans: b
119. 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
121. 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
122. A most suitable material for highway
embankments is
a) granular soil
b) organic soil
c) silts
d) clays
Ans: a
123. 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
124. 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
125. 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
126. 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
127. The binder normally used in flexible
pavement construction is
a) cement
b) lime
c) bitumen
d) None of the above
Ans: c
128. In highway construction, rolling
starts from
a) sides and proceed to center
b) center and proceed to sides
c) one side and proceed to other side
d) any of the above
Ans: a
129. 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
130. 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
131. When the bituminous surfacing is done
on the already existing blacktop 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
132. 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
133. 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
134. The suitable surfacing material for a
bridge deck slab is
a) sheet asphalt
b) bituminous carpet
c) mastic asphalt
d) rolled asphalt
Ans: c
135. 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
136. The thickness of the 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
137. 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
138. In highway construction on
superelevated curves, the rolling shall proceed from
a) sides towards the center
b) center towards the sides
c) lower edge towards the upper edge
d) upper edge towards the lower edge
Ans: c
144. The camber for hill roads in case of the bituminous surfacing is adopted as
a) 2%
b) 2.5%
c) 3%
d) 4%
Ans: b
146. 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
147. The drain which is provided parallel
to roadway to intercept and divert the water from hill slopes is known as
a) sloping drain
b) catch water drain
c) side drain
d) cross drain
Ans: b
148. The walls which are necessary on the
hillside of the roadway where the 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
149. In hill roads, the side drains arc
provided
a) only on the hillside of the road
b) only on the opposite side of
hill
c) on both sides of the road
d) None of the above
Ans: a
150. The bottom-most layer of pavement is known as
a) Wearing course
b) Base course
c) Sub-base course
d) Subgrade
Ans: D
151. Rapid curing cutback bitumen is produced
by blending bitumen with
a) Kerosene
b) Benzene
c) Diesel
d) Petrol
Ans: D
152. Widening of the curve on the horizontal curve is
required for _________ purpose.
a) Mechanical
b) Psychological
c) Both ‘a’ and ‘b’
d) None
Ans: C
153. Match List-I with List-II and select
the correct answer using the codes given below the lists
|
List - I |
List - I |
||
|
A |
Penetration
Test |
1 |
Overlay
Design |
|
B |
Marshal
Test |
2 |
Determination
of Softening Point |
|
C |
Ring and
Ball Test |
3 |
Gradation
of asphalt cement |
|
D |
Benkelman
Beam Test |
4 |
Design of
bituminous concrete mix |
Ans: d
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