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 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
A. 38,210 Btu/h
B. 36,220 Btu/h
C. 33,150 Btu/h
D. 34,120 Btu/h - ANSWER-D
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, TSSA G2 EXAM GASTECHNICIAN
When sizing capacitors in series, what would be the total capacitance (CT) using
12MFD and 15MFD capacitors?
A. 5.66 CT
B. 6.35 CT
C. 6.97 CT
D. 6.66 CT - ANSWER-D
On a gas regulator, what controls the increase or decrease of gas flow to the
appliance?
A. Restricting element
B. Vent hold
C. Loading element
D. Measuring element - ANSWER-A
Except when permitted, what is the minimum clearance to combustibles from the
top of a gas refrigerator?
A. 2 in.
B. 10 in.
C. 36 in.
D. 12 in - ANSWER-12
What is nitrogen known as?
A. Toxins
B. Explosive gases
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, TSSA G2 EXAM GASTECHNICIAN
C. Inert gas
D. Neutralizers - ANSWER-C
Which heat is removed or added to cause a change in state without change in
temperature?
A. Sensible heat
B. Radiant heat
C. Latent heat
D. Super heat - ANSWER-C
How would you measure relative humidity?
A. Wet bulb and atmospheric pressure
B. Dry bulb and latent heat of vapour
C. Moisture bulb and wet bulb
D. Wet bulb and dry bulb - ANSWER-D
How are electronic air cleaners wired?
A. in parallel with the appliance blower fan motor
B. in series with the appliance blower fan motor
C. in parallel with the fan
D. in series with the fan - ANSWER-A
The function of a fixed draft hood is to ensure:
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, TSSA G2 EXAM GASTECHNICIAN
A. negative over fire draft
B. positive over fire draft
C. zero (neutral) over fire draft
D. variable over fire draft condition - ANSWER-C
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
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TSSA G2 EXAM GASTECHNICIAN NEWEST 2025/2026
COMPLETE 300 QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+||BRAND NEW VERSION!!
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
A. 38,210 Btu/h
B. 36,220 Btu/h
C. 33,150 Btu/h
D. 34,120 Btu/h - ANSWER-D
1|Page
, TSSA G2 EXAM GASTECHNICIAN
When sizing capacitors in series, what would be the total capacitance (CT) using
12MFD and 15MFD capacitors?
A. 5.66 CT
B. 6.35 CT
C. 6.97 CT
D. 6.66 CT - ANSWER-D
On a gas regulator, what controls the increase or decrease of gas flow to the
appliance?
A. Restricting element
B. Vent hold
C. Loading element
D. Measuring element - ANSWER-A
Except when permitted, what is the minimum clearance to combustibles from the
top of a gas refrigerator?
A. 2 in.
B. 10 in.
C. 36 in.
D. 12 in - ANSWER-12
What is nitrogen known as?
A. Toxins
B. Explosive gases
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, TSSA G2 EXAM GASTECHNICIAN
C. Inert gas
D. Neutralizers - ANSWER-C
Which heat is removed or added to cause a change in state without change in
temperature?
A. Sensible heat
B. Radiant heat
C. Latent heat
D. Super heat - ANSWER-C
How would you measure relative humidity?
A. Wet bulb and atmospheric pressure
B. Dry bulb and latent heat of vapour
C. Moisture bulb and wet bulb
D. Wet bulb and dry bulb - ANSWER-D
How are electronic air cleaners wired?
A. in parallel with the appliance blower fan motor
B. in series with the appliance blower fan motor
C. in parallel with the fan
D. in series with the fan - ANSWER-A
The function of a fixed draft hood is to ensure:
3|Page
, TSSA G2 EXAM GASTECHNICIAN
A. negative over fire draft
B. positive over fire draft
C. zero (neutral) over fire draft
D. variable over fire draft condition - ANSWER-C
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
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