The component that turns the oil burner and blower on and off in response to external commands is the
_____.
a. ignition transformer
b. thermostat
c. primary control
d. magnetic oil flow valve
Question 2
In a furnace equipped with a solenoid oil flow valve, the valve will close when _____.
a. there is a call for heat
b. there is an oil leak
c. power is removed
d. the burner motor reaches full speed