It is recommended that a new boiler be shut down, drained, opened up, flushed out and inspected after the first _____ months of operation.
a. Two
b. Three
c. Six
d. Nine
e. Twelve
Answer: b
It is recommended that a new boiler be shut down, drained, opened up, flushed out and inspected after the first _____ months of operation.
a. Two
b. Three
c. Six
d. Nine
e. Twelve
Answer: b