Gas Fitter 2 Practice Test Exam With Correct
Answers,2025 A+ Graded.
A room heater installed in either a sleeping area or public area shall be:
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A. direct vent only
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B. equipped with a regulator
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C. equipped with a fan
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D. equipped with an on / off switch on the wall - CORRECT ANSWER✔✔B
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What type of vent must be used when the vent of a wall furnace will be concealed in a partition wall?
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A. B vent
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B. L vent
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C. BH vent
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D. BW vent - CORRECT ANSWER✔✔D
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,Single wall vent connectors:
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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
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material is maintained
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C. may pass through floors, ceilings or roofs provided they are insulated
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D. shall not pass through floors, ceilings or roofs - CORRECT ANSWER✔✔D
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BW vent shall be used only with an approved:
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A. decorative appliance
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B. down flow furnace
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C. revertible flue boiler
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D. recessed wall furnace - CORRECT ANSWER✔✔D
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What must be done during the installation of a gas log fireplace?
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A. Make sure there is a metal mesh screen in front of the fireplace
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B. Secure the chimney damper in the open position
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C. Install a pressure regulator
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D. Install a metal chimney liner - CORRECT ANSWER✔✔B
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When can a certified hose be used to connect a construction heater to temporary piping?
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A. Only if a lever handle shut off valve is installed upstream of the hose
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B. Only if the hose is 15 feet long
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C. Never - CORRECT ANSWER✔✔A
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Which of the following is acceptable when a fireplace insert is installed?
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,A. A metal chimney linear
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B. The existing fireplace flue
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C. BW vent
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D. A tile lined fireplace flue? - CORRECT ANSWER✔✔A
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An unvented infra-red heater can be installed in ________ application
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A. A warehouse
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B. A commercial building
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C. An industrial building
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D. All of the above - CORRECT ANSWER✔✔D
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Dirt pockets are required on:
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A. Decorative appliances
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B. Gas logs
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C. Room heaters
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D. None of the available choices - CORRECT ANSWER✔✔D
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What diameter and length of a dirt pocket is required when a drop line is 3-inch diameter?
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A. 3 inch diameter by 3 inches long
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B. 1 inch diameter by 3 inches long
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C. 3/4 inch diameter by 3 inches long
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D. 2 inch diameter by 3 inches long - CORRECT ANSWER✔✔D
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What type of room heater maybe installed in a bathroom?
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A. Natural draft
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, B. Direct fired
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C. Forced draft
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D. Direct vent - CORRECT ANSWER✔✔D
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What safety control protects a steam boiler if the condensate pump fails to return water to the boiler?
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A. High pressure limit control
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B. Low pressure limit control
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C. Flame safeguard control
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D. Low water cut off - CORRECT ANSWER✔✔D
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The relief valve for a residential low-pressure hot water boiler system should be?
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A. 14.7 psia
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B. 15 psia
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C. 30 psig
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D. 30 psia - CORRECT ANSWER✔✔C
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A backflow prevent used in a boiler system should be located in the:
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A. Over flow line connected to the drain
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B. Return line close to the boiler
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C. 1/4" line connecting the boiler and cushion tank
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D. Make up water line to the system - CORRECT ANSWER✔✔B
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Automatic chlorinators must be installed: j j j j
A. upstream of the heater
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B. downstream of the heater
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Answers,2025 A+ Graded.
A room heater installed in either a sleeping area or public area shall be:
j j j j j j j j j j j j j
A. direct vent only
j j j
B. equipped with a regulator
j j j j
C. equipped with a fan
j j j j
D. equipped with an on / off switch on the wall - CORRECT ANSWER✔✔B
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What type of vent must be used when the vent of a wall furnace will be concealed in a partition wall?
j j j j j j j j j j j j j j j j j j j j
A. B vent
j j
B. L vent
j j
C. BH vent
j j
D. BW vent - CORRECT ANSWER✔✔D
j j j j j
,Single wall vent connectors:
j j j
A. may pass through floors, ceilings or roofs provided a metal thimble is used
j j j j j j j j j j j j j
B. may pass through floors, ceilings or roofs provided the required minimum distance from combustible
j j j j j j j j j j j j j j
material is maintained
j j j
C. may pass through floors, ceilings or roofs provided they are insulated
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D. shall not pass through floors, ceilings or roofs - CORRECT ANSWER✔✔D
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BW vent shall be used only with an approved:
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A. decorative appliance
j j
B. down flow furnace
j j j
C. revertible flue boiler
j j j
D. recessed wall furnace - CORRECT ANSWER✔✔D
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What must be done during the installation of a gas log fireplace?
j j j j j j j j j j j
A. Make sure there is a metal mesh screen in front of the fireplace
j j j j j j j j j j j j j
B. Secure the chimney damper in the open position
j j j j j j j j
C. Install a pressure regulator
j j j j
D. Install a metal chimney liner - CORRECT ANSWER✔✔B
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When can a certified hose be used to connect a construction heater to temporary piping?
j j j j j j j j j j j j j j
A. Only if a lever handle shut off valve is installed upstream of the hose
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B. Only if the hose is 15 feet long
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C. Never - CORRECT ANSWER✔✔A
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Which of the following is acceptable when a fireplace insert is installed?
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,A. A metal chimney linear
j j j j
B. The existing fireplace flue
j j j j
C. BW vent
j j
D. A tile lined fireplace flue? - CORRECT ANSWER✔✔A
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An unvented infra-red heater can be installed in ________ application
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A. A warehouse
j j
B. A commercial building
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C. An industrial building
j j j
D. All of the above - CORRECT ANSWER✔✔D
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Dirt pockets are required on:
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A. Decorative appliances
j j
B. Gas logs
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C. Room heaters
j j
D. None of the available choices - CORRECT ANSWER✔✔D
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What diameter and length of a dirt pocket is required when a drop line is 3-inch diameter?
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A. 3 inch diameter by 3 inches long
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B. 1 inch diameter by 3 inches long
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C. 3/4 inch diameter by 3 inches long
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D. 2 inch diameter by 3 inches long - CORRECT ANSWER✔✔D
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What type of room heater maybe installed in a bathroom?
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A. Natural draft
j j
, B. Direct fired
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C. Forced draft
j j
D. Direct vent - CORRECT ANSWER✔✔D
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What safety control protects a steam boiler if the condensate pump fails to return water to the boiler?
j j j j j j j j j j j j j j j j j
A. High pressure limit control
j j j j
B. Low pressure limit control
j j j j
C. Flame safeguard control
j j j
D. Low water cut off - CORRECT ANSWER✔✔D
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The relief valve for a residential low-pressure hot water boiler system should be?
j j j j j j j j j j j j
A. 14.7 psia
j j
B. 15 psia
j j j
C. 30 psig
j j
D. 30 psia - CORRECT ANSWER✔✔C
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A backflow prevent used in a boiler system should be located in the:
j j j j j j j j j j j j
A. Over flow line connected to the drain
j j j j j j j
B. Return line close to the boiler
j j j j j j
C. 1/4" line connecting the boiler and cushion tank
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D. Make up water line to the system - CORRECT ANSWER✔✔B
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Automatic chlorinators must be installed: j j j j
A. upstream of the heater
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B. downstream of the heater
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