Blow off cock is provided in steam boiler to

1.	Blow off cock is provided in steam boiler to
A.	guard the boiler in case of abnormal rise in steam pressure.
B.	drain out water and sludge during its repair.
C.	regulate the supply of water in boiler.
D.	put out the fire in the furnace when the water level in the boiler falls to unsafe limit.
Answer» C. regulate the supply of water in boiler.

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Blow off cock is provided in steam boiler to

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