question_answer

Consider the following statements:

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

Which of the above statements is/are correct?

A) 1 and 2            

B) 2 and 3

C) 1 only              

D) 1, 2 and 3