1. The rail is designated by its
a) length
b) weight
c) cross-section
d) weight
per unit length
Ans: d
2. Two important constituents in
the com-position of steel used for rail are
a) carbon
and silicon
b) manganese
and phosphorous
c) carbon
and manganese
d) carbon
and sulfur
Ans: c
3. The standard length of rail
for Broad Gauge and Meter Gauge are respectively
a) 12 m
and 12 m
b) 12 m
and 13 m
c) 13
m and 12 m
d) 13 m
and 13 m
Ans: c
4. The following tests are
conducted for rails:
i)falling weight test
i)falling weight test
ii)tensile test
iii)hammer test
The compulsory tests are
a) only (i)
a) only (i)
b) (i)and(ii)
c) (ii)
and (iii)
d) (i)
and (iii)
Ans: b
5. Largest dimension of a rail is
its
a) height
b) foot
width
c) head
width
d) any
of the above
Ans: a
6. Largest percentage of material
in the rail is in its
a) head
b) web
c) foot
d) head
and foot both
Ans: a
7. The purpose of providing
fillet in a rail section is to
a) increase
the lateral strength
b) increase
the vertical stiffness
c) avoid
the stress concentration
d) reduce
the wear
Ans: c
8. The cross-sectional area of 52
kg flat footed rail is
a) 6155
mm2
b) 6615
mm2
c) 7235
mm2
d) 7825
mm2
Ans: b
9. 52 kg rails are mostly used in
a) Broad
Gauge
b) Metre
Gauge
c) Narrow
Gauge
d) both
(a) and (b)
Ans: a
10. Tensile strength of steel used in rails should not be less than
a) 450
MPa
b) 500
MPa
c) 700
MPa
d) 850
MPa
Ans: c
11. Head width of 52 kg rail
section is
a) 61.9
mm
b) 66.7mm
c) 67mm
d) 72.33
mm
Ans: c
12. 60 R rails are mostly used in
a) Broad
Gauge
b) Metre
Gauge
c) Narrow
Gauge
d) none
of the above
Ans: b
13. Ordinary rails are made of
a) mild
steel
b) cast
iron
c) wrought
iron
d) high
carbon steel
Ans: d
14. The main function of a fish
plate is
a) to
join the two rails together
b) to
join rails with the sleeper
c) to
allow rail to expand and contract freely
d) none
of the above
Ans: a
15. Number offish bolts per fish
plate is
a) 2
b) 4
c) 5
d) 6
Ans:b
Ans:b
16. Fish plate is in contact with
rail at
a) web
of rail
b) fishing
plane
c) head
of rail
d) foot
of rail
Ans: b
17. Gauge is the distance between
a) center
to center of rails
b) running
faces of rails
c) outer
faces of rails
d) none
of the above
Ans: b
18. Which of the following
factors govern the choice of the gauge ?
i)
volume and nature of traffic
ii)
speed of train
iii)physical
features of the country
The correct answer
is
a) only (i)
b) both
(i) and (ii)
c) both
(ii) and (iii)
d) (i),
(ii) and (iii)
Ans: d
19. For developing thinly populated areas, the
correct choice of gauge is
a) Broad Gauge
b) Meter
Gauge
c) Narrow
Gauge
d) any
of the above
Ans: c
20. Due to battering action of wheels over the end of
the rails, the rails get bent down and are deflected at ends. These rails are
called
a) roaring rails
b) hogged
rails
c) corrugated
rails
d) buckled
rails
Ans: b
21. The slipping of driving wheels of locomotives on
the rail surface causes
a) wheel burns
b) hogging
of rails
c) scabbing
of rails
d) corrugation
of rails
Ans: a
22. The width of foot for 90 R
rail section is
a) 100
mm
b) 122.2
mm
c) 136.5
mm
d) 146.0
mm
Ans: c
23. The height of the rail for 52
kg rail section is
a) 143
mm ,
b) 156
mm
c) 172
mm '
d) 129
mm
Ans: b
24. The formation width for a railway track depends
on the i) type of gauge
ii) number of
tracks to be laid side by side
iii) slope of sides of embankment or cutting
The correct answer is
a) only (i)
b) both
(i) and (ii)
c) both
(i) and (iii)
d) (i),
(ii) and (iii)
Ans: b
25. The formation width for a single line meter gauge
track in embankment as adopted on Indian Railways is
a) 4.27 m
b) 4.88
m
c) 5.49
m
d) 6.10
m
Ans: b
26. The side slope of embankments for a railway track
is generally taken as
a) 1:1
b) 1.5:1
c) 2:1
d) 1:2
Ans: c
27. The formation width for a double line Broad Gauge
track in cutting (excluding drains) as adopted on Indian Railways is
a) 6.10 m
b) 8.84
m
c) 10.21
m
d) 10.82
m
Ans: c
28. The total gap on both sides
between the inside edges of wheel flanges and gauge faces of the rail is kept
as
a) 10
mm
b) 13
mm
c) 16
mm
d) 19
mm
Ans: d
29. Creep is the
a) longitudinal
movement of rail
b) lateral
movement of rail
c) vertical
movement of rail
d) difference
in level of two rails
Ans: a
30. Anticreep bearing plates are
provided on
a) bridges
and approaches
b) joints
c) both
(a) and (b)
d) none
of the above
Ans: d
31. Study the following
statements regarding creep.
i) Creep is
greater on curves than on tangent railway track,
ii) Creep in
new rails is more than that in old rails,
iii) Creep is more on steep gradients than on level
track.
The correct answer is
a) only (i)
b) (i)and(ii)
c) (ii)
and (iii)
d) (i),
(ii) and (iii)
Ans: b
32.The maximum degree of curvature for Meter Gauge
is limited to
a) 10°
b) 16°
c) 30°
d) 40°
Ans:b
Ans:b
33. Staggered joints are
generally provided
a) on
curves
b) on
straight track
c) when
two different rail sections are required to be joined
d) none
of the above
Ans: a
34. When the rail ends rest on a
joint sleeper, the joint is termed as
a) supported
rail joint
b) suspended
rail joint
c) bridge
joint
d) base
joint
Ans: a
35. Which of the following types of sleepers is
preferred on joints?
a) CST-9 sleeper
b) steel
trough sleeper
c) wooden
sleeper
d) concrete
sleeper
Ans: c
36. Minimum depth of ballast cushion for a Broad
Gauge wooden sleeper of size 275x25x13 cm with 75 cm sleeper spacing is
a) 15 cm
b) 20
cm
c) 25
cm
d) 30cm
Ans: c
37. Sleeper density in India is
normally kept as
a) M +
2 to M + 7
b) MtoM+2
c) M
+ 5toM+10
d) M
(where M is the rail length in meters.)
Ans: a
38. For a Broad Gauge route with M+7 sleeper density,
number of sleepers per rail length is
a) 18
b) 19
c) 20
d) 21
Ans: c
39. Standard size of wooden
sleeper for Broad Gauge track is
a) 275x25x13cm
b) 180x20x11.5
cm
c) 225x23x13
cm
d) 250x26x12
cm
Ans: a
40. Composite sleeper index is the index of
a) hardness
and strength
b) strength
and toughness
c) toughness
and wear resistance
d) wear
resistance and hardness
Ans: a
41. Minimum composite sleeper index prescribed on
Indian Railways for a track sleeper is
a) 552
b) 783
c) 1352
d) 1455
Ans: b
42. Dog spikes are used for
fixing rail to the
a) wooden
sleepers
b) CST-9
sleepers
c) steel
trough sleepers
d) concrete
sleepers
Ans: a
43. Number of dog spikes normally used per rail seat
on curved track is
a) one on either side
b) two
outside and one inside
c) one
outside and two inside
d) two
outside and two inside
Ans: b
44. The type of bearing plate
used in all joints and on curves to give better bearing area to the rails is a)
flat mild steel bearing plate
b) mild
steel canted bearing plate
c) cast
iron anticreep bearing plate
d) none
of the above
Ans: b
45. Flat mild steel bearing
plates are used
a) for
points and crossings in the lead portion
b) with
wooden sleepers at
locations where creep is likely to be developed c) on all joints and
curves
d) on all the above
Ans: a
46. The nominal size of ballast
used for points and crossings is
a) 25
mm
b) 40
mm
c) 50
mm
d) 10
mm
Ans: a
47. At points and crossings, the total number of
sleepers for 1 in 12 turnouts in Broad Gauge is
a) 51
b) 62
c) 70
d) 78
Ans: c
48. Width of ballast section for
Broad Gauge is
a) 1.83
m
b) 2.25
m
c) 3.35
m
d) 4.30
m
Ans: c
49. The type of spike used for fixing chairs of bull
headed rails to wooden sleepers is
a) dog spike
b) rail
screw
c) elastic
spike
d) round
spike
Ans: d
50. The sleepers resting directly on girder are
fastened to the top fiange of girder by
a) hook bolts
b) dog
spikes
c) fang
bolts
d) rail
screws
Ans: a
51. Number of keys used in CST-9
sleeper is
a) 2
b) 3
c) 4
d) none
of the above
Ans: a
52. Loose jaws of steel trough
sleepers are made of
a) cast
steel
b) mild
steel
c) cast
iron
d) spring
steel
Ans: d
53. Number of cotters used in
CST-9 sleepers is
a) 2
b) 3
c) 4
d) 5
Ans: c
54. Pandrol clips cannot be used
with
a) wooden
sleepers
b) concrete
sleepers
c) CST-9
sleepers
d) steel
trough sleepers
Ans: c
55. The desirable
rate of change of cant deficiency in case of Metre Gauge is
a) 20
mm/sec
b) 35
mm/sec
c) 55
mm/sec
d) 65
mm/sec
Ans: b
56. The limiting value of cant
excess for Broad Gauge is
a) 55
mm
b) 65
mm
c) 75
mm
d) l00
mm
Ans: c
57. The limiting value of cant
gradient for all gauges is
a) 1 in
360
b) 1 in
720
c) 1
in 1000
d) 1 in
1200
Ans: b
58. Normally the limiting value
of cant is
a) G/8
b) G/10
c) G/12
d) G/15 (where G is the gauge. )
Ans: b
59. Vertical curves are provided where algebraic
difference between grades is equal to or
a) less than 2 mm/m
b) more
than 2 mm/m
c) less
than 4 mm/m
d) more
than 4mm/m
Ans: d
60. The limiting value of cant deficiency for Meter
Gauge routes is
a) 40 mm
b) 50
mm
c) 75
mm
d) 100
mm
Ans: b
61. The steepest gradient
permissible on a 2.5° curve for Broad Gauge line having ruling gradient of 1 in
200 is
a) 1 in
250
b) 1 in
222
c) 1
in 235
d) 1 in
275
Ans: a
62. Normally maximum cant
permissible in Meter Gauge is
a) 75
mm
b) 90
mm
c) 140
mm
d) 165
mm
Ans: b
63. Cant deficiency occurs when a
vehicle travels around a curve at
a) equilibrium
speed
b) speeds
higher than equilibrium speed
c) speeds
lower than equilibrium speed
d) booked
speed
Ans: b
64. The compensation for curvature on gradient for
Meter Gauge is given by
a) 70/R
b) 52.5/R
c) 35/R
d) 105/R
where R is radius of curve.
Ans: b
65. The shape of transition curve
used by Indian Railways is
a) cubic
parabola
b) spiral
c) sine
curve
d) lemniscate
of Bernoulli
Ans: a
67. A Broad Gauge branch line takes off as a contrary
flexure from a main line If the superelevation required for branch line is 10
mm and cant deficiency is 75 mm, the superelevation to be actually provided on
the branch line will be
a) 10 mm
b) 64
mm
c) 85
mm
d) 65
mm
Ans: d
68. One degree of curve is
equivalent to
a) 1600/R
b) 1700/R
c) 1750/R
d) 1850/R
where R is the radius of curve in meters.
Ans: c
70. Switch angle is the angle
between
a) the
gauge face of the stock rail and tongue rail
b) the
outer face of the stock rail and tongue rail
c) the
gauge face of the stock rail and outer face of the tongue rail
d) the
outer face of the stock rail and the gauge face of the tongue rail
Ans: a
71. Switch angle depends on
i) heel divergence
ii) length of tongue rail
iii)flange way clearance
iv)throw of switch
ii) length of tongue rail
iii)flange way clearance
iv)throw of switch
The correct answer is
a) (i) and (ii)
b) (ii)
and (iii)
c) (iii)
and (iv)
d) (i)and(iv)
Ans: a
72. Maximum
value of 'throw of switch' for Broad Gauge track is
a) 89 mm
b) 95
mm
c) 100
mm
d) 115
mm
Ans: d
73. Stretcher bar is provided
a) to
permit lateral movement of the tongue rail
b) to
maintain the two tongue rails at the exact distance
c) to
ensure exact gauge at the toe of the switch as well as the nose of crossing
d) to
prevent any vertical movement between the wing rail and nose of crossing
Ans: b
74. Which of the following methods of designation of
crossing is mostly used in India?
a) center line method
b) right
angle method
c) isosceles
angle method
d) none
of the above
Ans: b
75. If a is the angle of
crossing, then the number of crossings 'N' according to right angle method is
given by
a) Vi
cot(cc/2)
b) cot(oc/2)
c) cot(a)
d) Vi
cosec(a/2)
Ans: c
76. Which of the following turnouts is most commonly
used for goods train on Indian Railways ?
a) 1 in 8'/2
b) 1 in
12
c) 1
in 16
d) 1 in
20
Ans: a
77. Lead of crossing is the
distance from the
a) heel
of the switch to the toe of the switch
b) heel
of the switch to the theoretical nose of the crossing
c) toe
of the switch to the theoretical nose of crossing
d) toe
of the switch to the actual nose of crossing
Ans: b
78. Number of switches provided on a Gaunt-letted
track is
a) 1
b) 2
c) 3
d) none
of the above
Ans: d
79. The correct relation between
curve lead (CL), switch lead (SL) and lead of cros¬sing (L) is given by a) CL =
L - SL
b) L
=CL-SL
c) SL
= L + CL
d) L =
(CL+SL)/2
Ans: b
80. In a scissors cross-over, the
crossings provided are
i) 2 obtuse
angle crossings
ii) 4 obtuse
angle crossings iii) 4 acute angle
crossings
iv) 6 acute
angle crossings
The correct answer is
a) (i) and (iii)
b) (i)and(iv)
c) (ii)
and (iii)
d) (ii)
and (iv)
Ans: b
81. The distance through which
the tongue rail moves laterally at the toe of the switch for movement of trains
is called
a) flangeway
clearance
b) heel
divergence
c) throw
of the switch
d) none
of the above
Ans: c
82. Flangeway clearance is the
distance
a) between
the adjoining faces of the running rail and the check rail near the crossing
b) between
the gauge faces of the stock rail and the tongue rail
c) through
which the tongue rail moves laterally at the toe of the switch
d) d)
none of the above
Ans: a
83. Heel divergence is
a) always
less than flangeway clearance
b) equal
to flangeway clearance
c) always
greater than flangeway clearance
d) sometimes
greater than flangeway clearance
Ans: c
84. Which of the following mechanical devices is used
to ensure that route cannot be changed while the train is on the point even
after putting back the signal ?
a) detectors
b) point
lock
c) iock
bar
d) stretcher
bar
Ans: c
85. The treadle bar is provided
a) in
the middle of the track a little in front of the toes of the tongue rail
b) near
and parallel to inner side of one of the rails
c) at
right angle to the rail
d) near
and parallel to inner side of both the rails
Ans: b
86. The object of providing a
point lock is
a) to
ensure that each switch is correctly set
b) to
ensure that the point may not be operated while the train is on it
c) to
detect any obstruction between and tongue rail
d) none
of the above
Ans: a
87. Which of the following devices is used to
transfer the wagons or locomotives to and from parallel tracks without any
necessity of shunting ?
a) triangle
b) turntable
c) traverser
d) scotch
block
Ans: c
88. A triangle is used for
a) changing
the direction of engine
b) transferring
wagons to and from parallel tracks without shunting
c) separating
all the sidings and shunting lines from main lines
d) preventing
the vehicles from running off the track
Ans: a
89. The height of the center of arm of a semaphore
signal above the ground is
a) 5.5m
b) 6.5
m
c) 7.5
m
d) 8.5m
Ans: c
90. The reception signal is
i) outer
signal
ii) home
signal
iii) starter
iv) advanced
starter
The correct answer is
a) (i) and (ii)
b) (ii)
and (iii)
c) (iii)
and (iv)
d) (i)and(iv)
Ans: a
91. Yellow lighthand signal
indicates
a) stop
b) proceed
c) proceed
cautiously
d) none
of the above
Ans: c
92. When semaphore and warner are
installed on the same post, then the stop indication is given when
a) both
arms are horizontal
b) semaphore
arm lowered but warner arm horizontal
c) both
semaphore and warner arms lowered
d) none
of the above
Ans: a
93. In a shunting signal if the red band is inclined
at 45° it indicates
a) stop
b) proceed
c) proceed
cautiously
d) none
of the above
Ans: b
95. For the purpose of track maintenance, the number
of turn out equivalent to one track km are
a) 1
b) 2
c) 5
d) 10
Ans: d
96. A train is hauled by 4-8-2
locomotive.
The number of driving wheels in this locomotive is
a) 4
b) 8
c) 12
d) 14
Ans: b
97. To ensure exact gauge, the
gauge tie plates are provided at
a) toe
of the switch
b) nose
of crossing
c) both
(a) and (b)
d) none
of the above
Ans: c
99. On a single rail track, goods trains loaded with
heavy iron material run starting from A to B and then empty wagons run from B
to A. The amount of creep in the rails.
a) will be more in the direction of B to A
b) will
be more in the direction of A to B
c) will
be maximum at the middle of A and B
d) cannot
be determined from the given data.
Ans: b
100. For laying the railway
track, materials required are
A) Rails
B) Fish
Plates
C) Fish
Bolts
D) Bearing
Plates
The quantities required for one kilometer of Broad
Gauge track will be
Ans: b
104. Metal sleepers are superior to wooden sleepers with
respect to
a) cost
b) life
c) track
circuiting
d) fastening
Ans: b
105. Which one of the following rail failures is
caused by loose fish bolts at expansion joints?
a) crushed head
b) angular
break
c) split
head
d) transverse
fissures
Ans: a
106. For a 8° curve track diverging from a main curve of 5°
in an opposite direction in the layout of a broad gauge yard, the cant to be
provided for the branch track for maximum speed of 45 km/h on the main line and
'G' = 1.676 m is (Permitted cant deficiency for the main line = 7.6 cm)
a) 0.168 cm
b) -0.168
cm
c) 7.432
cm
d) 7.768
cm
Ans: b
107. Consider the following
statements:
Automatic signalling system
results in
1.
greater risk
2.
higher efficiency
3.
avoidance of block instruments
4.
higher operating cost
Of these statements
a) I
and 2 are correct
b) 3
and 4 are correct
c) 1
and 4 are correct
d) 2
and 3 are correct
Ans: d
108. Wear of rails is maximum in weight of
a) tangent track
b) sharp
curve
c) tunnels
d) coastal
area
Ans: b
114. A train is hauled by 2-8-2 locomotive with 22.5
tonnes and on each driving axle. Assuming the coefficient of rail-wheel friction
to be 0.25, what would be the hauling capacity of the locomotive?
a) 15.0 tonnes
b) 22.5
tonnes
c) 45.0
tonnes
d) 90.0
tonnes
Ans: b
115. A treadle bar is used for
a) interlocking
points and signal
b) setting
points and crossings
c) setting
marshalling yard signals
d) track
maintenance
Ans: a
116. Consider the following
statements about concrete sleepers.
1.
They improve the track modulus.
2.
They have good scrap value.
3.
They render transportation easy.
4.
They
maintain the gauge quite satisfactorily.
Of these statements
a) 1 and 2 are
correct
b) 2
and 3 are correct
c) 3
and 4 are correct
d) 1
and 4 are correct
Ans: d
117. What will be the curve lead for a 1 in 8.5 turnout
taking off from a straight broad gauge track?
a) 28.49 m
b) 21.04
m
c) 14.24
m
d) 7.45
m
Ans: a
118. Consider the following
surveys.
1.
Reconnaissance survey
2.
Preliminary survey
3.
Traffic survey
4.
Location survey
The correct sequence in which
these surveys are conducted before the alignment of a track is finalised is
a) 1,3,2,4
b) 1,3,4,2
c) 3,1,4,2
d) 3,1,2,4
Ans: d
119. The load on each axle of a locomotive is 22
tonnes. If the coefficient of friction is 0.2, then the hauling capacity due to
3 pairs of driving wheels will be
a) 26.41
b) 19.81
c) 13.21
d) 6.61
Ans: c
120. In a B.G.
railway track, the specified ruling gradent is 1 in 250. The horizontal curve
of 3° on a gradient of 1 in 250 will have the permissible gradient of
a) 1 in 257
b) 1 in
357
c) 1
in 457
d) 1 in
512
Ans: b
121. For a sleeper density of (n+5), the number of
sleepers required for constructing a broad gauge railway track of length 650 m
is
a) 975
b) 918
c) 900
d) 880
Ans: c
122. If 'A' is the angle formed by two gauge faces,
the crossing number will be
a) tan A
b) cot
A
c) sec
A
d) Arad
Ans: b
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