Q.

Why is ‘make-up water’ added to drum continuously?

A. to remove the impurities in tube
B. to replace the water that has been converted into steam
C. to keep the system cool externally
D. to compensate for water loss trough blow down
Answer» D. to compensate for water loss trough blow down
Explanation: make-up water is added to compensate for the losses of water incurred by blow downs or leakages occurring in boiler, and also to maintain desired water level in boiler steam drum. blow down and
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