G2 Gas Technician Module 10 Exam 2026
Questions and Answers
The working pressure differential between the gas meter outlet and the appliance
regulator inlet at furthest appliance from meter - Correct Answer -Define pressure
drop
0.5" w.c. - Correct Answer -What is the Max pressure drop >7" w.c. NG
1" w.c. - Correct Answer -What is the Max pressure drop 7" - 14" w.c. NG
After piping system is installed and before any appliance is connected to it. -
Correct Answer -When do you do a high pressure test?
1. Isolate the piping system - Correct Answer -
2. Cap or plug open ends - Correct Answer -
3. Insert a pressure gauge at one end of the system - Correct Answer -
4. Pressurize system with air or inert gas to specified test pressure. - Correct
Answer -How do you do a High pressure test
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, 1. High pressure test prior to connecting appliance. Disconnect piping at gas meter
and before appliance valve train. - Correct Answer -
2. Leak test with meter and appliance connected under normal operating pressure.
Use a manometer or lowest volume test dial on meter. 10 min duration - Correct
Answer -
3. Leak test using a liquid solution under normal operating pressure. Check all
fittings. - Correct Answer -
4. Can also check system with manometer in an existing system which measure in.
of W.C. this is for systems up to 14" W.C. - Correct Answer -Three tests required
by code when installing
1. 3" in diameter - Correct Answer -
2. Max range shall exceed test pressure by at least 15% but less then 300% -
Correct Answer -
3. Pressure gauge shall read in increments of 2psig or 2% of maximum dial reading
of pressure gauge. Whichever is less. - Correct Answer -High pressure test gauges
must be:
Annex H - Correct Answer -Purging practices are located in which Annex?
©COPYRIGHT 2025 ALL RIGHTS RESERVED 2
Questions and Answers
The working pressure differential between the gas meter outlet and the appliance
regulator inlet at furthest appliance from meter - Correct Answer -Define pressure
drop
0.5" w.c. - Correct Answer -What is the Max pressure drop >7" w.c. NG
1" w.c. - Correct Answer -What is the Max pressure drop 7" - 14" w.c. NG
After piping system is installed and before any appliance is connected to it. -
Correct Answer -When do you do a high pressure test?
1. Isolate the piping system - Correct Answer -
2. Cap or plug open ends - Correct Answer -
3. Insert a pressure gauge at one end of the system - Correct Answer -
4. Pressurize system with air or inert gas to specified test pressure. - Correct
Answer -How do you do a High pressure test
©COPYRIGHT 2025 ALL RIGHTS RESERVED 1
, 1. High pressure test prior to connecting appliance. Disconnect piping at gas meter
and before appliance valve train. - Correct Answer -
2. Leak test with meter and appliance connected under normal operating pressure.
Use a manometer or lowest volume test dial on meter. 10 min duration - Correct
Answer -
3. Leak test using a liquid solution under normal operating pressure. Check all
fittings. - Correct Answer -
4. Can also check system with manometer in an existing system which measure in.
of W.C. this is for systems up to 14" W.C. - Correct Answer -Three tests required
by code when installing
1. 3" in diameter - Correct Answer -
2. Max range shall exceed test pressure by at least 15% but less then 300% -
Correct Answer -
3. Pressure gauge shall read in increments of 2psig or 2% of maximum dial reading
of pressure gauge. Whichever is less. - Correct Answer -High pressure test gauges
must be:
Annex H - Correct Answer -Purging practices are located in which Annex?
©COPYRIGHT 2025 ALL RIGHTS RESERVED 2
