If a boiler has only one safety valve, its heating surface must not exceed
a. 75 m2
b. 47 m2
c. 36 m2
d. 28 m2
e. 19 m2
Answer: B
If a boiler has only one safety valve, its heating surface must not exceed
a. 75 m2
b. 47 m2
c. 36 m2
d. 28 m2
e. 19 m2
Answer: B