Q
Blow off cock is provided in steam boiler to ____________________?
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A
A. Guard the boiler in case of abnormal rise in steam pressure
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B
B. Drain out water and sludge during its repair
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C
C. Regulate the supply of water in boiler
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D
D. Put out the fire in the furnace when the water level in the boiler falls to unsafe limit
Correct Answer:
B. B. Drain out water and sludge during its repair
