Transportation 100 Questions with Answers
1.
The central portion of a road for high speed vehicles
is known as
A.
Motor way B. Express
way
C.
Shoulder D. Carriage way
Answer: Option (A, B)
2.
Carriage-way is protected by wide shoulders.
A.
0.5 to 1.25 m B. 1.25
to 2 m
C.
2 to 4 m D.
4 to 6 m
Answer: Option B
3.
The
Indian Roads Organisation (C.R.O) was set up in
A.
1930 B. 1934
C.
1948 D. 1956
Answer: Option B
4.
The
headquarter of the Indian Roads Congress is at
A. Mumbai (Bombay)
B. Kolkata(Calcutta)
C. Chennai
(Madras)
D. New
Delhi
Answer: Option D
5.
For
the water-bound macadam road, the recommended camber is
A. 1 in 24 to1 in 30
B. 1 in 30 to 1 in 48
C. 1 in 60 to 1 in 80
D. 1 in 80 to 1 in 120
Answer: Option B
6.
According
to Indian Roads Congress, the maximum width of a road vehicle is
A.
1.85 m B. 2.25
m
C.
2.45 m D. 3.2 m
Answer: Option B
7.
The
top of the ground on which the foundation of road rests, is called
A.
Sub-grade B. Soling
C.
Base D. Wearing layer
Answer: Option A
8.
The
thickness of base, in no case, should be more than
A.
10 cm B. 5 cm
C.
20 cm D.
30 cm
Answer: Option D
9.
The
function of a road base is to transmit load of the traffic from the to the
subgrade.
A.
Crown B. Camber
C.
Surfacing D. Berm
Answer: Option A
10.
The
slope of the line joining the crown’ and edge of the surface is known as
A.
Cross-fall B. Corss-slope
C.
Camber D. Any one of these
Answer: Option D
11.
The
shape of the camber provided for cement concrete pavement is
A.
Straight line B. Parabolic
C.
Elliptical D. None of these
Answer: Option A
12.
A barrel camber consists of
A. Two straight slopes joining at
the center
B. Two
straight slopes with a parabolic crown in the center
C. A
continuous curve either parabolic or elliptical
D. None
of the above
Answer: Option C
13.
A camber
consisting of two straight slopes joining at the center is called
A. Barrel camber
B. Sloped camber
C. Composite camber
D. None of these
Answer: Option B
14.
The inward tilt given to the cross-section of
the road surface, throughout the length of the horizontal curve, is known as
A.
Super-elevation B. Cant
C.
Banking D. All of these
Answer: Option D
15.
The
raising of outer edge of the road above the inner edge is known as
A.
Super-elevation B. Cant
C.
Banking D. All of these
Answer: Option D
16.
Super-elevation is expressed as
A. The difference of heights two
edges of the carriage-way to the width of the carriage-way
B. The difference of radii of
curves
C. The difference of the road
gradients
D. None of the above
Answer: Option A
17.
The super-elevation is
A. Directly proportional to the
velocity of vehicles
B. Inversely proportional to the
width of pavement
C. Directly proportional to the
width of pavement
Answer: Option A
18.
If the difference of levels between two points
A and B is 1 meter and their distance apart is 50 meters, the gradient is said
to be
A. 1 in 50 or 2%
B. 1 in 5 or 20%
C. 1 in 2 or 5%
D. None of these
Answer: Option A
19.
A horizontal curve on a road provides
A. Change in the direction
B. Change in the gradient of road
C. Both (a) and (b)
D. None of these
Answer: Option A
20.
A transition curve can not be a
A. True spiral
B. Cubic spiral
C. Compound curve
D. Cubic parabola
Answer: Option C
21.
The shape of a vertical curve is
A. Parabolic
B. Spiral
C. Elliptical
D. Any one of these
Answer: Option A
22.
The steepest gradient within which the
engineer must endeavor to design the road is called
A. Maximum gradient
B. Limiting gradient
C. Both(a) and (b)
D. None of these
Answer: Option C
23.
The value of maximum gradient for hill roads
is
A.
1 in 5 B. 1 in
10
C.
1 in 15 D. 1 in 20
Answer: Option C
24.
The suitable gradient within which the
engineer must endeavor to design the road is called
A. limiting gradient
B. Ruling gradient
C. Average gradient
D. Exceptional
gradient
Answer: Option B
25.
The value of ruling gradient in plain, as
recommended by Indian Road Congress. Is
A.
1 in 10 B. 1 in
20
C.
1 in 30 D. 1 in 40
Answer: Option C
26.
The value of ruling gradient in hills, as
recommended by Indian Road Congress, is
A.
1 in 10 B. 1 in
20
C.
1 in 30 D.
1 in 40
Answer: Option B
27.
An essential gradient, which has to be
provided for the purpose of road drainage, is called
A. Maximum gradient
B. Minimum gradient
C. Exceptional gradient
D. Floating gradient
Answer: Option B
28.
An gradient on a road is said to be an
exceptional gradient if it is
A. Less than the minimum gradient
B. More than the maximum gradient
C. More than the minimum gradient
D. Less than the maximum gradient
Answer: Option (A, B)
29.
The stopping sight distance is always
overtaking sight distance.
A.
Equal to B. Less
than C. Greater than
Answer: Option B
30.
The factor which influences the design of
curves, is
A. Speed of vehicle
B. Maximum permissible
super-elevation
C. Permissible centrifugal ratio
D. All of these
Answer: Option D
31.
The type of transition curve recommended by
the IRC is
A.
b = nL/R B. b =
nL2/R
C.
nL/2R D. b = nL2/2R
Answer: Option B
32.
The shift (S) of a transition curve is given
by
A.
S = L2/6R B. S = L2/12R
C.
S = L2/24R D.
S = L2/48R
Answer: Option C
33.
Valley curves are required to be introduced at
the situations where
A. A negative grade meets a
positive grade
B. A negative grade meets another
milder negative grade
C. A negative grade meets a steeper
positive grade
D. All of the above
Answer: Option D
34.
Design of both summit and valley curves is
based on the assumption that the
A. Curve is so flat that the
length of curve is equal to the length of chord
B. Two portions of the curve
along the two tangents on either side of the point of intersection are equal
C. Angles made by the tangent
with the horizontal are very small and tangents of those angles are equal to
the angles themselves
D. All of the above
Answer: Option D
35.
Summit curves are required to be introduced at
the situations where
A. A positive grade meets a
negative grade
B. A positive grade meets another
milder positive grade
C. A negative grade meets a
steeper negative grade
D. All
of the above
Answer: Option D
36.
The minimum length of a valley curve should be
such that the head light beam sight distance is equal to the
A. Stopping sight distance
B. Passing sight distance
C. Braking distance
D. None of these
Answer: Option A
37.
According to IRC, the minimum length of the
summit or valley curve should not be less than the design speed in km/h.
A.
One-half B. One-fourth C.
Two-third
Answer: Option A
38.
A terrain with cross-slope less than 10
percent, is called
A. Steep terrain
B. Mountainous terrain
C. Level terrain
D. Rolling terrain
Answer: Option C
39.
A gradient at which on tractive force is
required to maintain constant speed by a vehicle is called
A. Average gradient
B. Limiting gradient
C. Exceptional gradient
D. Floating gradient
Answer: Option D
40.
In hill roads, minimum sight distance required
is
A. Stopping sight distance
B. Passing sight distance
C. Braking distance
D. None of these
Answer: Option A
41.
The maximum super-elevation on hill roads
should not exceed
A.
7% B. 8%
C.
9% D. 10%
Answer: Option D
42.
If R is the radius of curvature of a hill
road, the maximum grade compensation is equal to
A.
65/R B. 75/R
C.
85/R D.
95/R
Answer: Option B
43.
The flexible pavement distribute the wheel
load
A. Directly to sub-grade
B. Through a set of layers to
sub-grade
C. Through structural action
D. None of these
Answer: Option B
44.
The wearing course in the case of flexible
pavements consist of
A. Hard well burnt clinker
B. Broken
stone and granular material mixed with tar
C. A
mixture of bituminous material and aggregate
D. All
of the above
Answer: Option C
45.
The California bearing ratio (CBR) method of
flexible pavement design gives an idea about
A. The quality of road making
only
B. The traffic intensities
C. The characteristics of soil
D. All of these
Answer: Option A
46.
In CBR test, the value of CBR is calculated at
A. 2.5 mm penetration
B. 5 mm penetration
C. Both 2.5 and 5 mm penetration
D. None of these
Answer: Option C
47.
Which of the following method is recommended
by I.R.C. for design of flexible
pavement?
A. Group index method
B. CBR method
C. Westergaard method
D. None of these
Answer: Option B
48.
The group index method of designing flexible
pavement is
A. An empirical method based on
the physical properties of the sub-grade soil
B. An empirical method based on
the strength characteristics of the sub-grade soil
C. A semi-empirical method
D. None of these
Answer: Option A
49.
The value of group index of a soil varies from
A.
0 to 10 B. 0 to
20
C.
20 to 30 D. 30 to 40
Answer: Option B
50.
The depth of reinforcement, below the surface
of pavement, is kept as
A.
25 mm B.50 mm
C.
75 mm D. 100 mm
Answer: Option B
51.
The longitudinal joints are provided when the
width of road is more than
A.
3 m B. 4 m
C.
5.5 m D. 6.75 m
Answer: Option B
52.
The longitudinal joints may be
A.
Tongue and groove type
B. Butt type
C. Weakened
plane type
D. All of
these
Answer: Option D
53.
Tie bars in longitudinal joints in concrete
pavements
A. Ensure firm contact between
slab faces
B. Prevent abutting slabs from
separating along the longitudinal joint
C. Act as load transfer devices
D. All of the above
Answer: Option D
54.
The transverse joint may be a
A.
Expansion joint B. Contraction joint
C.
Warping joint D. All of these
Answer: Option D
55.
The maximum spacing of contraction joints in
unreinforced concrete slabs thickness of 20 cm is
A.
4.5 m B. 10 m
C.
15 m D. 20 m
Answer: Option A
56.
According to IRC recommendations, the width of
transverse expansion joint should be extending to full length of slab.
A.
10 mm B. 20
mm
C.
30 mm D. 40 mm
Answer: Option B
57.
The traffic volume is equal to
A. Traffic density/traffic speed
B. Traffic speed/traffic density
C. Traffic density x traffic
speed
D. None of these
Answer: Option C
58.
The average number of vehicles per day passing
on a section of the road during a particular year, is called
A. Peak hour traffic
B. Average daily traffic
C. Design hourly volume
D. Any one of these
Answer: Option B
59.
As per IRC recommendations, traffic volume
study is carried out for rural roads for days continuously during harvesting
and lean season.
A.
7 B. 14
C.
21 D.
28
Answer: Option A
60.
Highway capacity is defined as the total
number of vehicles
A. Than can be accommodated on a
unit length of the road
B. Than can pass a given point in
a unit period of time
C. That can pass a given point in
a specified period of time
D. None of the above
Answer: Option B
61.
The highway capacity is expressed in passenger
car unit (PCU). According to IRC, for a passenger car, the PCU is
A.
1 B. 2
C.
3 D. 4
Answer: Option A
62.
The enoscope is used to determine
A. Running speed
B. Spot speed
C. Travel time
D. Average speed
Answer: Option B
63.
The theoretical capacity (C) of a highway (i.e. the number of vehicles passing any point in one hour per lane)
is given by
A.
C = 100 V/S B. C = 500 V/S
C.
C = 1000 V/S D. C =
2000 V/S
Answer: Option C
64.
The number of vehicles passing at a point on
the highway in unit time is known as
A. Traffic capacity
B. Traffic volume
C. Traffic density
D. All of these
Answer: Option A
65.
A complete signal-time cycle constitutes
A. Red timing
B. Yellow timing
C. Green timing
D. All of these
Answer: Option D
66.
At a road junction, cross conflict points are
severe if both are two-way roads.
A.
5 B. 7
C.
9 D. 16
Answer: Option D
67.
A road sign is generally installed above the
ground at a height of
A. 2.75 m to 2.80 m
B. 2.95 m to 3.00 m
C. 3.15 m to 3.5 m
D. More than 3.5 m
Answer: Option A
68.
The maximum number of vehicles can be parked
with
A. Parallel parking
B. Right angle parking
C. 450 angle parking
D. 750 angle parking
Answer: Option A
69.
The colour of light used for visibility during
fog is
A.
Red B. Yellow
C.
Green D. White
Answer: Option B
70.
The length of the side of warning sign boards
of roads is
A.
30 cm B. 45 cm
C.
60 cm D. 75 cm
Answer: Option B
71.
The most efficient traffic signal system is
A. Simultaneous system
B. Alternate system
C. Flexible progressive system
D. Simple progressive system
Answer: Option C
72.
The
intermediate sight distance =---x SSD
A.
1 B. 2
C.
3 D.
4
Answer: Option B
73.
Desirable
length of overtaking zone is ---times OSD
A.
3 B. 5
C.
6 D.
2
Answer: Option B
74.
Extra
widening is provided on horizontal curves having radii less than
A.
30 cm B. 45
cm
C.
60 cm D.
75 cm
Answer: Option A
75.
On
hill road radius of curve should not be less than
A.
100m B. 60m
C.
30m D.
15m
Answer: Option D
76.
The
design criteria for a valley curve doesn’t include the following
A.
Head light distance B. overtaking
sight distance
C.
comfort condition D. drainage
Answer: Option B
77.
As
speed increases, longitudinal friction coefficient
A.
decreases B. increases
C.
remains same D. None
Answer: Option A
78.
Which
among the following instrument used in reconnaissance survey
A.
Abney level B. Aneroid
barometer
C.
Pedometer D. All
Answer: Option D
79.
The
map shows general topography of the area and details are represented by
A.
index map B. key
map
C.
detailed drawings D. Land
plans
Answer: Option A
80.
The
map shows proposed and existing roads and important place to be connected is
A.
index map B. key
map
C.
detailed drawings D. Land
plans
Answer: Option B
81.
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
Answer: Option
B
82.
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
Answer: Option
C
83.
Which of the following represents hardest grade of bitumen?
a) 30/40 b) 60/70 c) 80/100 d) 100/120
Answer: Option
A
84.
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
Answer: Option
B
85.
Standard size of wooden sleeper for Broad Gauge track is
a)
275x25x13cm b) 180x20x11.5 cm
c)
225x23x13 cm d) 250x26x12 cm
Answer: Option
A
86.
Most suitable material for highway embankments
is
a)granular soil b)organic soil c)silts d)clays
Answer: Option
A
87.
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
Answer: Option
B
88.
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
Answer: Option
D
89.
For the design of super elevation
for mixed traffic
conditions, the speed is
reduced
by
a) 15 % b) 20 % c) 25
% d) 75
%
Answer: Option
C
90.
If is a dorry abrasion test the loss in weight 21 gms, then the coefficient of
hardness
is
a) 9.5 b) 13 c) 17 d) 21
Answer: Option
B
91.
For improvement road carrying fast traffic an average level of
illumination
recommended by IRC is
a) 4 lux b) 8 lux c) 15
lux d) 30 lux
Answer: Option
D
92.
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
Answer: Option
C
93.
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 %
Answer: Option
B
94.
The method of design of flexible
pavement as recommended by IRC is
a) group index method b)CBR method
c) Westerguard method d)Benkelman beam
method
Answer: Option
B
95.
The formation width of a double lane National Highway in
embankment is
a) 11m b) 0.10m c)
7.5m d) 12m or more
Answer: Option
D
96.
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
Answer: Option
C
97.
To calculate the minimum
value of 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
Answer: Option
C
98.
Minimum thickness of the base of a flexible pavement is
a) 10cm b) 15cm c) 20cm d) 30cm
Answer: Option
A
99.
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
Answer: Option
D
100.
The top height of route marker
above crown level is
a) 1.50m b) 2.2m c) 2.25m d) None of
these
Answer: Option
C
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