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TSSA G2 EXAM GASTECHNICIAN NEWEST 2025/2026
NEWEST ACTUAL EXAM WITH COMPLETE QUESTIONS AND
VERIFIED ANSWERS |ALREADY GRADED A+|
Why does the recommended range of CO2 in a conventional
furnace differ from the ultimate amount of CO2 of 11.9%?
A) to provide a safety margin
B) to provide a higher efficiency
C) to maintain a neutral pressure point at the door catch
D) to maintain a low stack temperature - ANSWER-A) To provide
a safety margin
Net stack temperature is the flue gas temperature:
a) Downstream of the draft hood.
b) Upstream of the draft hood.
c) Plus the ambient temperature.
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d) Minus the ambient temperature. - ANSWER-d) Minus the
ambient temperature.
A forced draft burner has a blower that produces sufficient
pressure to overcome the resistance of the:
A. burner
B. burner and the appliance
C. burner and the appliance downdraft
D. minus the ambient temperature - ANSWER-A) burner
When the installation of an appliance constitutes a conversion
from another form of energy to gas, the installer must:
A) advise the user in writing the procedure to follow the
discontinue the supply of the former for of energy
B) remove all aspects of the previous installation
C) remove the electrical supply wiring from the panel
D) advise the previous energy supplier or the change - ANSWER-
A) advise the user in writing the procedure to follow the
discontinue the supply of the former for of energy
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When the required minimum clearance for a vent connector is 9"
(228mm) to combustible material with no
protection, what is the acceptable method to reduce the clearance
by 3" (76mm)?
A)use 0.05" (12mm) insulating millboard spaced out 0.05 (12mm)
with noncombustible spacers
B) use 0.25" (6mm) insulating millboard spaced out 1" (25mm)
C)use 22 gauge sheet metal attached to the hot side of the-
combustible material
D) use 28 gauge sheet metal spaced out 1" (25mm) from the
combustible material - ANSWER-B) use 0.25" (6mm) insulating
millboard spaced out 1" (25mm)
What will happen when the neutral pressure point of a conversion
burner is improperly set?
A) the unit will over fire
B) the burner will short cycle
C) the burner efficiency will be affected
D) the burner will not fire - ANSWER-C) the burner efficiency will
be affected
TSSA G2 EXAM GASTECHNICIAN NEWEST 2025/2026
NEWEST ACTUAL EXAM WITH COMPLETE QUESTIONS AND
VERIFIED ANSWERS |ALREADY GRADED A+|
Why does the recommended range of CO2 in a conventional
furnace differ from the ultimate amount of CO2 of 11.9%?
A) to provide a safety margin
B) to provide a higher efficiency
C) to maintain a neutral pressure point at the door catch
D) to maintain a low stack temperature - ANSWER-A) To provide
a safety margin
Net stack temperature is the flue gas temperature:
a) Downstream of the draft hood.
b) Upstream of the draft hood.
c) Plus the ambient temperature.
, Page |2
d) Minus the ambient temperature. - ANSWER-d) Minus the
ambient temperature.
A forced draft burner has a blower that produces sufficient
pressure to overcome the resistance of the:
A. burner
B. burner and the appliance
C. burner and the appliance downdraft
D. minus the ambient temperature - ANSWER-A) burner
When the installation of an appliance constitutes a conversion
from another form of energy to gas, the installer must:
A) advise the user in writing the procedure to follow the
discontinue the supply of the former for of energy
B) remove all aspects of the previous installation
C) remove the electrical supply wiring from the panel
D) advise the previous energy supplier or the change - ANSWER-
A) advise the user in writing the procedure to follow the
discontinue the supply of the former for of energy
, Page |3
When the required minimum clearance for a vent connector is 9"
(228mm) to combustible material with no
protection, what is the acceptable method to reduce the clearance
by 3" (76mm)?
A)use 0.05" (12mm) insulating millboard spaced out 0.05 (12mm)
with noncombustible spacers
B) use 0.25" (6mm) insulating millboard spaced out 1" (25mm)
C)use 22 gauge sheet metal attached to the hot side of the-
combustible material
D) use 28 gauge sheet metal spaced out 1" (25mm) from the
combustible material - ANSWER-B) use 0.25" (6mm) insulating
millboard spaced out 1" (25mm)
What will happen when the neutral pressure point of a conversion
burner is improperly set?
A) the unit will over fire
B) the burner will short cycle
C) the burner efficiency will be affected
D) the burner will not fire - ANSWER-C) the burner efficiency will
be affected
