The type of combustion control frequently used on a small packaged boiler is
a. a semi-automatic control
b. a modulating control
c. a proportional control
d. a constant pressure control
e. an on-off control
Answer: e
The type of combustion control frequently used on a small packaged boiler is
a. a semi-automatic control
b. a modulating control
c. a proportional control
d. a constant pressure control
e. an on-off control
Answer: e