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Railway Engineering

Railway Engineering
Yellow lighthand signal indicates

proceed cautiously
None of these
stop
proceed

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Railway Engineering
The correct relation between curve lead (CL), switch lead (SL) and lead of cros¬sing (L) is given by

L =CL-SL
SL = L + CL
CL = L – SL
L = (CL+SL)/2

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Railway Engineering
Which one of the following rail failures is caused by loose fish bolts at expansion joints?

transverse fissures
split head
angular break
crushed head

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Railway Engineering
Switch angle depends on i) heel divergence ii) length of tongue rail iii) flangeway clearance iv) throw of switch The correct answer is

(ii) and (iii)
(i) and (ii)
(iii) and (iv)
(i)and(iv)

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Railway Engineering
Largest dimension of a rail is its

foot width
Any of these
head width
height

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Railway Engineering
The object of providing a point lock is

to detect any obstruction between and tongue rail
None of these
to ensure that the point may not be operated while the train is on it
to ensure that each switch is correctly set

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