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TSSA G2 EXAM GASTECHNICIAN NEWEST 2025/2026
COMPLETE 300 QUESTIONS AND CORRECT
ANSWERS WITH RATIONALES (VERIFIED ANSWERS)
|ALREADY GRADED A+| NEWEST EXAM VERSION!!!
A room heater installed in either a sleeping area or public
area shall be:
A. direct vent only
B. equipped with a regulator
C. equipped with a fan
D. equipped with an on / off switch on the wall - Answer-B
What type of vent must be used when the vent of a wall
furnace will be concealed in a partition wall?
A. B vent
B. L vent
C. BH vent
D. BW vent - Answer-D
Single wall vent connectors:
A. may pass through floors, ceilings or roofs provided a
metal thimble is used
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B. may pass through floors, ceilings or roofs provided the
required minimum distance from combustible material is
maintained
C. may pass through floors, ceilings or roofs provided they
are insulated
D. shall not pass through floors, ceilings or roofs - Answer-
D
BW vent shall be used only with an approved:
A. decorative appliance
B. down flow furnace
C. revertible flue boiler
D. recessed wall furnace - Answer-D
What must be done during the installation of a gas log
fireplace?
A. Make sure there is a metal mesh screen in front of the
fireplace
B. Secure the chimney damper in the open position
C. Install a pressure regulator
D. Install a metal chimney liner - Answer-B
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When can a certified hose be used to connect a
construction heater to temporary piping?
A. Only if a lever handle shut off valve is installed
upstream of the hose
B. Only if the hose is 15 feet long
C. Never - Answer-A
Which of the following is acceptable when a fireplace
insert is installed?
A. A metal chimney linear
B. The existing fireplace flue
C. BW vent
D. A tile lined fireplace flue? - Answer-A
An unvented infra-red heater can be installed in ________
application
A. A warehouse
B. A commercial building
C. An industrial building
D. All of the above - Answer-D
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Dirt pockets are required on:
A. Decorative appliances
B. Gas logs
C. Room heaters
D. None of the available choices - Answer-D
What diameter and length of a dirt pocket is required when
a drop line is 3-inch diameter?
A. 3 inch diameter by 3 inches long
B. 1 inch diameter by 3 inches long
C. 3/4 inch diameter by 3 inches long
D. 2 inch diameter by 3 inches long - Answer-D
What type of room heater maybe installed in a bathroom?
A. Natural draft
B. Direct fired
C. Forced draft
D. Direct vent - Answer-D
What safety control protects a steam boiler if the
condensate pump fails to return water to the boiler?
TSSA G2 EXAM GASTECHNICIAN NEWEST 2025/2026
COMPLETE 300 QUESTIONS AND CORRECT
ANSWERS WITH RATIONALES (VERIFIED ANSWERS)
|ALREADY GRADED A+| NEWEST EXAM VERSION!!!
A room heater installed in either a sleeping area or public
area shall be:
A. direct vent only
B. equipped with a regulator
C. equipped with a fan
D. equipped with an on / off switch on the wall - Answer-B
What type of vent must be used when the vent of a wall
furnace will be concealed in a partition wall?
A. B vent
B. L vent
C. BH vent
D. BW vent - Answer-D
Single wall vent connectors:
A. may pass through floors, ceilings or roofs provided a
metal thimble is used
,2|Page
B. may pass through floors, ceilings or roofs provided the
required minimum distance from combustible material is
maintained
C. may pass through floors, ceilings or roofs provided they
are insulated
D. shall not pass through floors, ceilings or roofs - Answer-
D
BW vent shall be used only with an approved:
A. decorative appliance
B. down flow furnace
C. revertible flue boiler
D. recessed wall furnace - Answer-D
What must be done during the installation of a gas log
fireplace?
A. Make sure there is a metal mesh screen in front of the
fireplace
B. Secure the chimney damper in the open position
C. Install a pressure regulator
D. Install a metal chimney liner - Answer-B
,3|Page
When can a certified hose be used to connect a
construction heater to temporary piping?
A. Only if a lever handle shut off valve is installed
upstream of the hose
B. Only if the hose is 15 feet long
C. Never - Answer-A
Which of the following is acceptable when a fireplace
insert is installed?
A. A metal chimney linear
B. The existing fireplace flue
C. BW vent
D. A tile lined fireplace flue? - Answer-A
An unvented infra-red heater can be installed in ________
application
A. A warehouse
B. A commercial building
C. An industrial building
D. All of the above - Answer-D
, 4|Page
Dirt pockets are required on:
A. Decorative appliances
B. Gas logs
C. Room heaters
D. None of the available choices - Answer-D
What diameter and length of a dirt pocket is required when
a drop line is 3-inch diameter?
A. 3 inch diameter by 3 inches long
B. 1 inch diameter by 3 inches long
C. 3/4 inch diameter by 3 inches long
D. 2 inch diameter by 3 inches long - Answer-D
What type of room heater maybe installed in a bathroom?
A. Natural draft
B. Direct fired
C. Forced draft
D. Direct vent - Answer-D
What safety control protects a steam boiler if the
condensate pump fails to return water to the boiler?
