Railway Engineering

11. A train is hauled by 4-8-2 locomotive. The number of driving wheels in this locomotive is

1. 4
2. 8
3. 12
4. 14

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12. A treadle bar is used for

1. Interlocking points and signal
2. Setting points and crossings
3. Setting marshalling yard signals
4. Track maintenance

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13. A triangle is used for

1. Changing the direction of engine
2. Transferring wagons to and from parallel tracks without shunting
3. Separating all the sidings and shunting lines from main lines
4. Preventing the vehicles from running off the track

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14. A triangle of railway consists of

1. Three turn outs
2. One turn out and two diamonds
3. Two turn outs and one split
4. One turn out, one split and one diamond

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15. A triangle used for turning the face of locomotives, consists of

1. Three turn outs
2. One turn out and two splits
3. Two turn outs and one split
4. Three splits

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16. A turn-in-curve is defined as

1. A curve introduced between two straights
2. A reverse curve
3. A reverse curve introduced in continuity of a turn out
4. A spiral transition curve

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17. A welded rail joint is generally

1. Supported on a sleeper
2. Supported on a metal plate
3. Suspended
4. None of these

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18. A wing rail is renewed or reconditioned if its maximum vertical wear is

1. 9.5 m
2. 7.5 m
3. 5.5 m
4. 5.0 m

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19. According to Indian Railway Board, no diamond crossing should be flatter than

1. 1 in 6
2. 1 in 8½
3. 1 in 12
4. 1 in 16

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20. Advantage of automatic signalling, is:

1. Increased safety
2. Reduction in delays
3. Increase in track capacity
4. All the above

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