1. Fusible plug is a device used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit. |
2. Superheater is a device used to increase the temperature of saturated steam without raising its pressure. |
3. An economizer decreases the steam raising capacity of boiler |
A) 1 and 2
B) 2 and 3
C) 1 only
D) 1, 2 and 3
Correct Answer: A
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