Railway Engineering Quiz | Railway Engineering Multiple Choice Questions with Answers

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Questions
61 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

Answer: near and parallel to inner side of one of the rails
62 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

Answer: iock bar
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63 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

Answer: always greater than flangeway clearance
64 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 none of the above

Answer: between the adjoining faces of the running rail and the check rail near the crossing
65 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

Answer: throw of the switch
66 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

Answer: L =CL-SL
67 Number of switches provided on a Gaunt-letted track is
A 1
B 2
C 3
D none of the above

Answer: none of the above
68 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

Answer: heel of the switch to the theoretical nose of the crossing
69 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

Answer: 1 in 8’/2
70 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)

Answer: cot(a)
71 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

Answer: right angle method
72 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

Answer: to maintain the two tongue rails at the exact distance
73 Maximum value of ‘throw of switch’ for Broad Gauge track is
A 89 mm
B 95 mm
C 100 mm
D 115 mm

Answer: 115 mm
74 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

Answer: the gauge face of the stock rail and tongue rail
75 One degree of curve is equivalent to where R is the radius of curve in meters.
A 1600/R
B 1700/R
C 1750/R
D 1850/R

Answer: 1750/R
76 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

Answer: 65 mm
77 The shape of transition curve used by Indian Railways is
A cubic parabola
B spiral
C sine curve
D lemniscate of Bernoulli

Answer: cubic parabola
78 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

Answer: to ensure that each switch is correctly set
79 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

Answer: traverser
80 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

Answer: changing the direction of engine

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