Chapter 92

Question 0

An intermittent pilot:
A) lights the main flame then extinguishes
B) must be manually ignited
C) lights the main flame and remains on
D) lights a pilot flame then extinguishes

Answer 0

C) lights the main flame and remains on

Question 1

The main function of a gas burner is:
A) atomization of the fuel
B) a source of ignition
C) mixing of fuel gas / air prior to ignition
D) regulation of fuel flow

Answer 1

C) mixing of fuel gas / air prior to ignition

Question 2

A hydramotor valve:
A) opens and closes quickly
B) is slow to open and quick to close
C) uses air as it's working medium
D) should not be the last fuel valve to open

Answer 2

B) is slow to open and quick to close

Question 3

Larger size solenoid type gas valves open wide in approximately \_\_\_\_ seconds to prevent a furnace puff.
A) 1 to 2
B) 6 to 8
C) 10 to 12
D) 4 to 5

Answer 3

D) 4 to 5

Question 4

The piston in a motorized gas valve is closed by:
A) loss of power
B) release of hydraulic fluid
C) spring action
D) all of the above

Answer 4

D) all of the above