TSSA G2 EXAM GASTECHNICIAN
TSSA G2 EXAM GASTECHNICIAN NEWEST 2025/2026
COMPLETE 300 QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+||BRAND NEW VERSION!!
What would be the minimum distance that a dryer vent can terminate from a gas
meter?
A. 3 ft.
B. 6 ft.
C. 1 ft.
D. 10 ft. - ANSWER-A
For a low-pressure steam boiler what would be the maximum steam pressure
setting?
A. 30 psig
B. 25 psig
C. 10 psig
D. 15 psig - ANSWER-30 psig
For a steam boiler, what would be the most important safety control?
A. Flame scanner
B. Flame roll out switch
C. Low water cut off
D. High limit steam lock out control - ANSWER-C
1|Page
, TSSA G2 EXAM GASTECHNICIAN
If an appliance is less than 83% efficient and non-positive it would be considered
a?
A. Category II
B. Category I
C. Category IV
D. Category III - ANSWER-B
Installation of a propane tank under 1000 USWG what would be the minimum
distance from a regulator to a building opening?
A. 30'
B. 15'
C. 10'
D. 3' - ANSWER-D
On a hydronic heater system what control responds to a load change?
A. Low water cut off
B. Expansion tank
C. Flow switch
D. Aquastat - ANSWER-C
On a pressuretrol, the main burner starts on?
A. Pressure rise
B. Water level
C. Pressure differential
2|Page
, TSSA G2 EXAM GASTECHNICIAN
D. Steam system output - ANSWER-C
What is the minimum distance that a vent from an appliance with an input of
101,000 btu/h can be from a non-mechanical air supply?
A. 1 ft.
B. 2 ft.
C. 3 ft
D. 6 ft. - ANSWER-C
Can a gas log fireplace be installed in a sleeping quarter?
A. Yes, if proper air supply is added
B. Yes, if the venting is over sized
C. No, even if new venting is installed
D. Yes, only if its a bed sitting room - ANSWER-D
If the flue gases are removed from the front of the appliance we could assume
that it's a?
A. 1 to 3 flue pass boiler
B. 2 to 6 flue pass boiler
C. 2 to 5 flue pass boiler
D. 2 to 4 flue pass boiler - ANSWER-D
A room heater installed in either a sleeping area or public area shall be:
A. direct vent only
B. equipped with a regulator
3|Page
, TSSA G2 EXAM GASTECHNICIAN
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
What does a gas pressure regulator control?
A. controls inlet pressure
B. controls gas flow
C. Controls downstream pressure
D. Locks out gas flow - ANSWER-C
Clocking a 5 foot dial on a gas meter for 63 seconds what would be the appliance
input?
A. 258,000 BTU
B. 286,000 BTU
C. 268,000 BTU
D. 284,000 BTU - ANSWER-B
What would be the Btu/h output of a 10 kW heater
4|Page
TSSA G2 EXAM GASTECHNICIAN NEWEST 2025/2026
COMPLETE 300 QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+||BRAND NEW VERSION!!
What would be the minimum distance that a dryer vent can terminate from a gas
meter?
A. 3 ft.
B. 6 ft.
C. 1 ft.
D. 10 ft. - ANSWER-A
For a low-pressure steam boiler what would be the maximum steam pressure
setting?
A. 30 psig
B. 25 psig
C. 10 psig
D. 15 psig - ANSWER-30 psig
For a steam boiler, what would be the most important safety control?
A. Flame scanner
B. Flame roll out switch
C. Low water cut off
D. High limit steam lock out control - ANSWER-C
1|Page
, TSSA G2 EXAM GASTECHNICIAN
If an appliance is less than 83% efficient and non-positive it would be considered
a?
A. Category II
B. Category I
C. Category IV
D. Category III - ANSWER-B
Installation of a propane tank under 1000 USWG what would be the minimum
distance from a regulator to a building opening?
A. 30'
B. 15'
C. 10'
D. 3' - ANSWER-D
On a hydronic heater system what control responds to a load change?
A. Low water cut off
B. Expansion tank
C. Flow switch
D. Aquastat - ANSWER-C
On a pressuretrol, the main burner starts on?
A. Pressure rise
B. Water level
C. Pressure differential
2|Page
, TSSA G2 EXAM GASTECHNICIAN
D. Steam system output - ANSWER-C
What is the minimum distance that a vent from an appliance with an input of
101,000 btu/h can be from a non-mechanical air supply?
A. 1 ft.
B. 2 ft.
C. 3 ft
D. 6 ft. - ANSWER-C
Can a gas log fireplace be installed in a sleeping quarter?
A. Yes, if proper air supply is added
B. Yes, if the venting is over sized
C. No, even if new venting is installed
D. Yes, only if its a bed sitting room - ANSWER-D
If the flue gases are removed from the front of the appliance we could assume
that it's a?
A. 1 to 3 flue pass boiler
B. 2 to 6 flue pass boiler
C. 2 to 5 flue pass boiler
D. 2 to 4 flue pass boiler - ANSWER-D
A room heater installed in either a sleeping area or public area shall be:
A. direct vent only
B. equipped with a regulator
3|Page
, TSSA G2 EXAM GASTECHNICIAN
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
What does a gas pressure regulator control?
A. controls inlet pressure
B. controls gas flow
C. Controls downstream pressure
D. Locks out gas flow - ANSWER-C
Clocking a 5 foot dial on a gas meter for 63 seconds what would be the appliance
input?
A. 258,000 BTU
B. 286,000 BTU
C. 268,000 BTU
D. 284,000 BTU - ANSWER-B
What would be the Btu/h output of a 10 kW heater
4|Page
