1. What is the primary measurement for the control of a boiler?
2. What does the term ID Fan mean?
3. What does the term FD Fan mean?
4. Water tube boilers have two drums. What are the names of the two drums?
What are your answers before you read ahead?
1. c. or e.
2. Induced draft
3. Forced draft
4. Upper drum or steam drum – mud drum or lower drum
From the ISA course Boiler Control Systems Engineering (ES15) pre-instructional survey.