G2 practice exam #2 EXAM QUESTIONS WITH COMPLETE SOLUTION) (MULTIPLE CHOICES) (A+ GRADED 100% VERIFIED) LATEST VERSION 2025

6/7/25, 12:13 PM G2 practice exam #2 EXAM QUESTIONS WITH COMPLETE SOLUTION) (MULTIPLE CHOICES) (A+ GRADED 100% VERIFIED)…




G2 practice exam #2 EXAM QUESTIONS WITH
COMPLETE SOLUTION) (MULTIPLE CHOICES) (A+
GRADED 100% VERIFIED) LATEST VERSION 2025

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Terms in this set (143)


What is the minimum c. 3"
diameter of a pressure
gauge needed to perform
leak test on gas piping?
A. 2"
B. 2 - 3/4"
C. 3"
D. 3 - 1/2"

Amp meter can read B. Conductor magnetic field.
what?
A. Pressure drop.
B. Conductor magnetic
field.
C. Load in parallel wires.
D. Direct power across
loads.




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What would be the D. 120/1/60.
primary voltage of a
furnace?
A. 120/2/60.
B. 24/1/60.
C. 120/24/60.
D. 120/1/60.

What is the function of an D. Stay on during the main burner operation.
intermittent pilot?
A. Shut off after main
burner.
B. Stay on before and after
main burner.
C. Power up the
thermocouple.
D. Stay on during the main
burner operation.

What is the millivolts B. 10 to 15 millivolts.
power output on a closed
circuit test?
A. 20 to 30 millivolts.
B. 10 to 15 millivolts.
C. 2 to 4 millivolts.
D. 10 millivolts or less.

A pilot with a lazy yellow A. Orifice too small.
flame would indicate?
A. Orifice too small.
B. Mid to high gas
pressure.
C. Target pilot orifice.
D. Orifice size too large.




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For flame rectification one B. Proper grounding plane.
of the most important
things should be?
A. Flame molecules.
B. Proper grounding
plane.
C. Proper air to gas
mixture to pilot.
D. Flame rod insulator.

What makes a flame C. Pilot flame.
capillary sensor tube
prove pilot to main gas
valve?
A. Trial for ignition.
B. Glow coil.
C. Pilot flame.
D. Intermittent pilot.

Since 1996 the most B. Vapour envelope.
common type of home
construction?
A. Platform.
B. Vapour envelope.
C. Solid bricks.
D. Double platform.




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10) Can a new installation B. No.
of a fin type pool heater
less than 250,000 btu be
install down stair in a
house?
A. Yes, if gas piping can
support gas input.
B. No.
C. Yes, if pool heater is
direct vented.
D. Yes, if poll heater is
close to chimney.

11) When converting oil B. Inshot.
furnace to gas what type
of atmospheric burner can
be use?
A. Burner tray.
B. Inshot.
C. Ribbon burner.
D. Primary air fan assist
burner.

12) If the flue gases are D. 2 to 4 flue pasts boiler.
remove from the front of
the appliance we could
assume that it's a?
A. 1 to 3 flue pasts boiler.
B. 2 to 6 flue pasts boiler.
C. 2 to5 flue pasts boiler.
D. 2 to 4 flue pasts boiler.




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