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Steam Boilers and Engines

Q1:

Blow off cock in a boiler is used to

A control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required

B empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler

C put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit

D increase the temperature of saturated steam without raising its pressure

ANS:B - empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler

Explanation: No answer description is available. 



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