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Railway Engineering - Interview Questions and Answers

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81. 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
Explanation:
82. 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
Explanation:
83. Tensile strength of steel used in rails should not be less than
A. 450 MPa
B. 500 MPa
C. 700 MPa
D. 850 MPa
Explanation:
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
Explanation:
85. 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
Explanation:
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