G2 EXAM QUESTIONS WITH CORRECT ANSWERS 2025/2026 RATED A+

G2 EXAM QUESTIONS WITH CORRECT
ANSWERS 2025/2026 RATED A+
The typical water outlet temperature setting on a domestic hot water heater is TSSA Q

a. 150 ̊F

b. 130 ̊F

c. 120 ̊F

d. 110 ̊F - CORRECT ANSWER -b. 130 ̊F



A T&P is preset to relieve at TSSA Q

a. 180 ̊F, 30 psi

b. 180 ̊F, 200 psi

c. 210 ̊F, 30 psi

d. 210 ̊F, 150 psi - CORRECT ANSWER -d. 210 ̊F, 150 psi



The T&P relief tube on a water heater must terminate within what distance? TSSA Q

a. 6" from the floor

b. 12" from grade level

c. 12" from the floor

d. 36" from grade level - CORRECT ANSWER -c. 12" from the floor



If the T&P is leaking, the corrective action is to TSSA Q

a. Plug it

b. Cap it

c. Replace it

d. Adjust it - CORRECT ANSWER -c. Replace it

, The purpose of the flue baffle on a domestic water heater is to TSSA Q

a. Improve the transfer of heat to the water

b. Ensure a downdraft does not affect the burner

c. Ensure a downdraft does not enter the furnace room

d. Improve the transfer of water to the faucets - CORRECT ANSWER -a. Improve the transfer of
heat to the water



Power-vented water heaters are powered by TSSA Q

a. Water flow

b. Millivolt powerpiles

c. A 24v transformer

d. 120 volts AC - CORRECT ANSWER -d. 120 volts AC



The most important consideration when locating the water heater for a combination system is
TSSA Q

a. The appliance gas supply

b. The appliance ductwork system

c. The appliance water piping system

d. The appliance venting system - CORRECT ANSWER -c. The appliance water piping system



Water heaters used in combination heating systems must be sized at ____% of the heat loss
calculation TSSA Q

a. 80%

b. 100%

c. 120%

d. 140% - CORRECT ANSWER -d. 140%