The disadvantages of forced circulation in a boiler are the ______ _____ of equipment, pumps, piping, etc.
A ) greater use
B ) increased costs
C ) higher maintenance
D ) numbers of
Answer: B
The disadvantages of forced circulation in a boiler are the ______ _____ of equipment, pumps, piping, etc.
A ) greater use
B ) increased costs
C ) higher maintenance
D ) numbers of
Answer: B