A safety valve mainly used with locomotive and marine boilers is

The safety valve on boiler drum compared to safety valve on superheater is set at

A

Same value

B

Higher value

C

Lower value

D

Lower/higher depending on steam flow

The safety valve at superheater as compared to drum safety valve setting is set at

A

Higher value

B

Lower value

C

Same value

D

Any value

A safety valve in a locomotive starts leaking. The leaking medium will be

A

Water

B

Dry steam

C

Wet steam

D

Super heated steam

A safety valve usually employed with stationary boilers is

A

Lever safety valve

B

Dead weight safety valve

C

High steam and low water safety valve

D

All of these

Which of the following is used to produce draught in the locomotive boilers ?

A

Chimney

B

Induced draught fan

C

Forced draught fan

D

Steam jet arrangement

In order to facilitate starting of locomotive in any position, the cranks of a locomotive with two cylinders, are placed at

A

45° to each other

B

90° to each other

C

120° to each other

D

180° to each other

The draught in locomotive boilers is produced by a

A

Chimney

B

Centrifugal fan

C

Steam jet

D

None of these

The draught in locomotive boilers is produced by

A

forced fan

B

chimney

C

steam jet

D

only motion of locomotive

Very high pressure boilers are usually __________ boilers.

A

Fire tube

B

Water tube

C

Waste heat

D

Natural circulation

For the same terminal conditions and valve size, the pressure drop in a fully opened globe valve as compared to that in a gate valve is

A

More

B

Less

C

Equal

D

Either A or B; depends on the viscosity of the fluid

A safety valve mainly used with locomotive and marine boilers is

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