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241.

The main device used for interlocking is

A.	point lock	B.	treadle bar
C.	detector	D.	all of these

242.

In case of level crossing, the railway track and road cross each other at the

same

different

243.

A warner signal, which is first seen by the driver is known as

A.	disc signal	B.	home signal
C.	outer signal	D.	routing signal

244.

The reception signal is

A.	outer signal	B.	home signal
C.	both (a) and (b)	D.	none of these

245.

Which of the following statement is wrong?

A.	The length of gap at crossing between two noses of a diamond crossing increases as the crossing angle decreases.	B.	The sand hump is a device to check the movement of a vehicle.
C.	The next signal after outer signal towards station is a routing signal.	D.	A stop signal placed at the end of a platform is called a starter signal.

246.

An advance starter signal is used for

A.	shunting	B.	goods train
C.	loco-sheds	D.	all of these

247.

In a shunting signal, if the red band is horizontal, it indicates

A.	stop	B.	proceed cautiously
C.	proceed	D.	none of these