Mechanical Engineering - Steam Boilers and Engines

31.
A device used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit, is called
blow off cock
stop valve
superheater
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

32.
The device attached to the steam chest for preventing explosions due to excessive internal pressure of steam is called
safety valve
water level indicator
pressure gauge
fusible plug
Answer: Option
Explanation:
No answer description is available. Let's discuss.

33.
In a steam engine, superheated steam from the boiler is fed into the steam chest at a pressure of
10 atmospheres
20 atmospheres
30 atmospheres
40 atmospheres
Answer: Option
Explanation:
No answer description is available. Let's discuss.

34.
A device used to empty the boiler whenever required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler, is called blow off cock.
Yes
No
Answer: Option
Explanation:
No answer description is available. Let's discuss.

35.
Clearance ratio is the ratio of
clearance volume to the swept volume
clearance volume to the volume at cut-off
volume at cut-off to the swept volume
swept volume to the clearance volume
Answer: Option
Explanation:
No answer description is available. Let's discuss.