Author Question: What is the minimum furnace size for which the fire department should be called to be on standby ... (Read 103 times)

dejastew · **on:** Jul 24, 2018

What is the minimum furnace size for which the fire department should be called to be on standby before lighting the burner when the refractory has been soaked with oil?

A) 2.5 gph B) 1.5 gph C) 4.5 gph D) 3.5 gph

Question 2

A TAB technician determines that the total airflow entering the return grilles is much lower than the amount of air the blower is moving. This indicates that:

A) There is too much restriction in the return-side ductwork.
B) There are leaks in the supply-side ductwork.
C) There is too much restriction in the supply-side ductwork.
D) There are leaks in the return-side ductwork.