Question 1

In a B.G. railway track, the specified ruling gradient is 1 in 250. The horizontal curve of 3° on a gradient of 1 in 250 will have the permissible gradient of

Accepted Answer

A)  1 in 257
B)  1 in 357
C)  1 in 457
D)  1 in 512

Question 2

Number of keys used in CST-9 sleeper is

Accepted Answer

A)  2
B)  3
C)  4
D)  None of the above

Question 3

The side of a rail diamond may be obtained by dividing the gauge of track by

Accepted Answer

A)  Sine of acute crossing
B)  Cosine of acute crossing
C)  Tangent of acute crossing
D)  Cotangent of acute crossing

Question 4

Switch angle is the angle between

Accepted Answer

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

Question 5

Pick up the incorrect statement from the following:

Accepted Answer

A)  Fish plates fit the underside of the rail head
B)  Fish plates fit the top of the rail foot
C)  Fish plates fit the web of the rail section
D)  Cross sectional area of fish plates, is normally the same as that of the rail section

Question 6

On a straight railway track, absolute levels at point A on two rails are 100.550 m and 100.530 m and the absolute levels at point B 100 m apart are 100.585 m and 100.515 m respectively, the value of twist of rails per metre run, is

Accepted Answer

A)  0.4 mm
B)  0.5 mm
C)  0.7 mm
D)  0.8 mm

Question 7

If L1 and L2 are actual and theoretical lengths of a tongue rail, d is heel divergence and t is thickness

Accepted Answer

A)  sin -1 (d - t/L1) 
B)  tan -1 (d - t/L1) 
C)  sin -1 (d - t/L2) 
D)  tan -1 (d - t/L2)

Question 8

The treadle bar is provided

Accepted Answer

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

Question 9

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

Accepted Answer

A)  Only (i) 
B)  Both (i)  and (ii) 
C)  Both (ii)  and (iii) 
D)  (i) , (ii)  and (iii)

Question 10

The following tests are conducted for rails:
(i)  Falling weight test
(ii)  Tensile test
(iii)  Hammer test
The compulsory tests are

Accepted Answer

A)  Only (i) 
B)  (i)  and (ii) 
C)  (ii)  and (iii) 
D)  (i)  and (iii)

Question 11

Minimum depth of ballast cushion for a Broad Gauge wooden sleeper of size 275 × 25 × 13 cm with 75 cm sleeper spacing is

Accepted Answer

A)  15 cm
B)  20 cm
C)  25 cm
D)  30 cm

Question 12

On either side of the centre line of rails, a cant of 1 in 20 in the sleeper is provided for a distance of

Accepted Answer

A)  150 mm
B)  165 mm
C)  175 mm
D)  185 mm

Question 13

The sleepers which satisfy the requirements of an ideal sleeper, are

Accepted Answer

A)  Cast iron sleepers
B)  R.C.C. sleepers
C)  Steel sleepers
D)  Wooden sleepers

Question 14

Coning of wheels is provided

Accepted Answer

A)  To check lateral movement of wheels
B)  To avoid damage to inner faces of rails
C)  To avoid discomfort to passengers
D)  All the above

Question 15

On Broad Gauge main lines with maximum traffic loads, the rail section preferred to, is

Accepted Answer

A)  29.8 to 37.3 kg/m
B)  32.5 to 42.5 kg/cm
C)  44.7 to 56.8 kg/m
D)  None of these

Question 16

Bearing plates are used to fix

Accepted Answer

A)  Flat footed rails to the wooden sleepers
B)  Double headed rails to the wooden sleepers
C)  Bull headed rails to the wooden sleepers
D)  Flat footed rails to the cast iron sleepers

Question 17

The desirable rate of change of cant deficiency in case of Metre Gauge is

Accepted Answer

A)  20 mm/sec
B)  35 mm/sec
C)  55 mm/sec
D)  65 mm/sec

Question 18

Pick up the correct statement from the following:

Accepted Answer

A)  Length of tongue rail should be greater than rigid wheel base of vehicle
B)  Stock rail should be longer than tongue rail
C)  Length of stock rail ahead of the toe should be a minimum of 1.65 m
D)  All the above

Question 19

On a single line track, 10 goods trains loaded with iron ore run from A to B and empty wagons return from B to A daily. Amount of creep of the rails will be

Accepted Answer

A)  Zero
B)  More in the direction A to B
C)  More in the direction B to A
D)  None of these

Question 20

Pot sleepers are in the form of

Accepted Answer

A)  A number of bowls connected together with a tie bar
B)  Two bowls placed under each rail and connected together with a tie bar
C)  Two bowls placed under two rails and the one between the rails
D)  None of these

Exam 2: Railway Track Components and Measurements

The sleepers which satisfy the requirements of an ideal sleeper, are

Correct AnswerverifiedShow Answer

On a single line track, 10 goods trains loaded with iron ore run from A to B and empty wagons return from B to A daily. Amount of creep of the rails will be

Correct AnswerverifiedShow Answer

The side of a rail diamond may be obtained by dividing the gauge of track by

Correct AnswerverifiedShow Answer

On Broad Gauge main lines with maximum traffic loads, the rail section preferred to, is

Correct AnswerverifiedShow Answer

Pick up the correct statement from the following:

Correct AnswerverifiedShow Answer

Pot sleepers are in the form of

Correct AnswerverifiedShow Answer

Bearing plates are used to fix

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Number of keys used in CST-9 sleeper is

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Pick up the incorrect statement from the following:

Correct AnswerverifiedShow Answer

The desirable rate of change of cant deficiency in case of Metre Gauge is

Correct AnswerverifiedShow Answer

If L1 and L2 are actual and theoretical lengths of a tongue rail, d is heel divergence and t is thickness

Correct AnswerverifiedShow Answer

Switch angle is the angle between

Correct AnswerverifiedShow Answer

The following tests are conducted for rails: (i) Falling weight test (ii) Tensile test (iii) Hammer test The compulsory tests are

Correct AnswerverifiedShow Answer

The treadle bar is provided

Correct AnswerverifiedShow Answer

In a B.G. railway track, the specified ruling gradient is 1 in 250. The horizontal curve of 3° on a gradient of 1 in 250 will have the permissible gradient of

Correct AnswerverifiedShow Answer

Minimum depth of ballast cushion for a Broad Gauge wooden sleeper of size 275 × 25 × 13 cm with 75 cm sleeper spacing is

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

On either side of the centre line of rails, a cant of 1 in 20 in the sleeper is provided for a distance of

Correct AnswerverifiedShow Answer

Coning of wheels is provided

Correct AnswerverifiedShow Answer

On a straight railway track, absolute levels at point A on two rails are 100.550 m and 100.530 m and the absolute levels at point B 100 m apart are 100.585 m and 100.515 m respectively, the value of twist of rails per metre run, is

Correct AnswerverifiedShow Answer

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If L₁ and L₂ are actual and theoretical lengths of a tongue rail, d is heel divergence and t is thickness

Correct Answer
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