If a boiler has more than 500ft of water heating surface and power input more than 1100 kw how many relief valves are required?
A. 1
B. 2
C. 3
D. 4
Answer: B
If a boiler has more than 500ft of water heating surface and power input more than 1100 kw how many relief valves are required?
A. 1
B. 2
C. 3
D. 4
Answer: B