

MCQOPTIONS
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1. |
The principal function of a stop valve is to |
A. | ontrol the flow of steam from the boiler to the main pipe and to shut off the steam completely when required |
B. | mpty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler |
C. | ut off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit |
D. | ncrease the temperature of saturated steam without raising its pressure |
Answer» B. mpty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler | |