1|Page
TSSA G2 EXAM GASTECHNICIAN NEWEST /2026 -
2027COMPLETE 300 QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A+|BRAND NEW VERSION!!
On a high efficiency furnace, what turns on the blower
fan?
A. Klixon limit
B. Bi-metal switch
C. Relay timer
D. Temperature - ANSWER-C
Why is there a low limit on a hot water tank which supplies
both space heating and domestic hot water?
A. To prevent rusting in the system
,2|Page
B. To prevent freeze up
C. To reduce oil consumption
D. To assure a constant supply of domestic hot water -
ANSWER-D
Is leaded solder allowed on the heating potion of a
combination domestic heating/ hot water system?
A. Yes
B. No - ANSWER-Yes
A forced draft burner has a blower that produces sufficient
pressure to overcome the resistance of the:
A. burner
B. burner and the appliance
,3|Page
C. burner and the appliance downdraft
D. venting system - ANSWER-B
What materials are approved for joining single wall vent
connectors?
A. Duct tape
B. Pop rivets
C. Sheet metal screws
D. Silicone or adhesive - ANSWER-C
How many Btu's are in a US gallon of oil?
A. 100,000
B. 120,000
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C. 140,000
D. 175,000 - ANSWER-C
A fan assist burner is?
A. Designed for better combustion
B. Designed for conversion boiler
C. Designed to overcome appliance friction
D. Designed to overcome burner resistance only -
ANSWER-D
When the required minimum clearance for a vent
connector is 9" (228 mm) to combustible material with no
protection, what is the acceptable method to reduce the
clearance by 3" (76 mm)?
TSSA G2 EXAM GASTECHNICIAN NEWEST /2026 -
2027COMPLETE 300 QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A+|BRAND NEW VERSION!!
On a high efficiency furnace, what turns on the blower
fan?
A. Klixon limit
B. Bi-metal switch
C. Relay timer
D. Temperature - ANSWER-C
Why is there a low limit on a hot water tank which supplies
both space heating and domestic hot water?
A. To prevent rusting in the system
,2|Page
B. To prevent freeze up
C. To reduce oil consumption
D. To assure a constant supply of domestic hot water -
ANSWER-D
Is leaded solder allowed on the heating potion of a
combination domestic heating/ hot water system?
A. Yes
B. No - ANSWER-Yes
A forced draft burner has a blower that produces sufficient
pressure to overcome the resistance of the:
A. burner
B. burner and the appliance
,3|Page
C. burner and the appliance downdraft
D. venting system - ANSWER-B
What materials are approved for joining single wall vent
connectors?
A. Duct tape
B. Pop rivets
C. Sheet metal screws
D. Silicone or adhesive - ANSWER-C
How many Btu's are in a US gallon of oil?
A. 100,000
B. 120,000
, 4|Page
C. 140,000
D. 175,000 - ANSWER-C
A fan assist burner is?
A. Designed for better combustion
B. Designed for conversion boiler
C. Designed to overcome appliance friction
D. Designed to overcome burner resistance only -
ANSWER-D
When the required minimum clearance for a vent
connector is 9" (228 mm) to combustible material with no
protection, what is the acceptable method to reduce the
clearance by 3" (76 mm)?
