(Maine Gas Exam Latest 2026-27 Update) 4/6/2026, 6:31:26 PM
Maine Gas Exam
Study online at https://quizlet.com/_fzlkca
1. Minimum vertical height for a Type B-W gas vent 12 Feet
above the bottom of a wall furnace?
2. Minimum thickness of a steel striker barrier for gas 0.0508"
tubing protection?
3. What is the maximum temp that a clay flue liner must 1,800 degrees F
be able to withstand without cracking?
4. Combustion air obtained from indoors on the same Two openings
story shall have a minimum of...
5. When gas is being supplied by a manifold located 50 feet
in a remote area, what is the maximum distance the
shutoff valve at the manifold can be located from the
appliance?
6. What reference standard covers the storage of liquid NFPA 58
propane gas?
7. A service station is being built with one boiler 28 feet 1 "
away from the meter that uses natural gas; all other
equipment is electric. What size K or L semi-rigid
copper tubing should be installed to supply 205 cu. ft.
of gas per hour with an inlet pressure less than 2 psi,
pressure drop of 0.3 in. W.C. and a specific gravity of
0.60?
8. Maximum distance a gas shut-off valve can be in- 6 feet
stalled from the equipment it serves?
9. Maximum distance off the ceiling of the room shall an 12"
indoor combustion air opening be installed?
10. What is the minimum required clearance for an unlist- 12"
ed pool heater on all sides and rear?
11. Flanges used for gas piping shall have gaskets made Rubber
of an approved material designed to withstand tem-
peratures, pressure and chemical constituents of the
4/6/2026 2026-04-06 2026/04/06
, (Maine Gas Exam Latest 2026-27 Update) 4/6/2026, 6:31:26 PM
Maine Gas Exam
Study online at https://quizlet.com/_fzlkca
gas. Which of the following gasket materials is not
acceptable?
12. When corrosive or flammable fumes or gases are Anhydrous Citric
present near appliances, a safe disposal method shall Acid
be provided. All of the following are considered flam-
mable or corrosive EXCEPT?!
13. When a mechanical appliance is installed in an exca- Copper pan
vation deeper than 12", what shall the excavation be
lined with?
14. Which type of regulator is used in series with an Monitoring
another pressure regulator for the purpose of auto-
matically taking over in an emergency the control of
the pressure down stream in case the pressure tends
to exceed a set maximum?
15. When more than 2 90° elbow's are required in a vent 10%
connector, the maximum capacity of the connector
shall be reduced for each additional 90° elbow by?
16. What is the minimum test pressure that can be used 3 psig
for testing newly installed gas piping?
17. What is the minimum vertical distance to the bottom 12"
of a combustion air intake located on the exterior of
a building above adjacent finish ground level?
18. A residential boiler or furnace with a listed gas con- 6"
version burner and draft hood with a type B gas vent
shall have a minimum clearance from combustible
materials of?
19. What is the maximum btu/hr input for an unlisted dec- 50,400 BTU
orative appliance installed in a vented fireplace with
an 18 foot tall chimney and permanent free opening
area of 29 in.²?
20. Cast Iron
4/6/2026 2026-04-06 2026/04/06
Maine Gas Exam
Study online at https://quizlet.com/_fzlkca
1. Minimum vertical height for a Type B-W gas vent 12 Feet
above the bottom of a wall furnace?
2. Minimum thickness of a steel striker barrier for gas 0.0508"
tubing protection?
3. What is the maximum temp that a clay flue liner must 1,800 degrees F
be able to withstand without cracking?
4. Combustion air obtained from indoors on the same Two openings
story shall have a minimum of...
5. When gas is being supplied by a manifold located 50 feet
in a remote area, what is the maximum distance the
shutoff valve at the manifold can be located from the
appliance?
6. What reference standard covers the storage of liquid NFPA 58
propane gas?
7. A service station is being built with one boiler 28 feet 1 "
away from the meter that uses natural gas; all other
equipment is electric. What size K or L semi-rigid
copper tubing should be installed to supply 205 cu. ft.
of gas per hour with an inlet pressure less than 2 psi,
pressure drop of 0.3 in. W.C. and a specific gravity of
0.60?
8. Maximum distance a gas shut-off valve can be in- 6 feet
stalled from the equipment it serves?
9. Maximum distance off the ceiling of the room shall an 12"
indoor combustion air opening be installed?
10. What is the minimum required clearance for an unlist- 12"
ed pool heater on all sides and rear?
11. Flanges used for gas piping shall have gaskets made Rubber
of an approved material designed to withstand tem-
peratures, pressure and chemical constituents of the
4/6/2026 2026-04-06 2026/04/06
, (Maine Gas Exam Latest 2026-27 Update) 4/6/2026, 6:31:26 PM
Maine Gas Exam
Study online at https://quizlet.com/_fzlkca
gas. Which of the following gasket materials is not
acceptable?
12. When corrosive or flammable fumes or gases are Anhydrous Citric
present near appliances, a safe disposal method shall Acid
be provided. All of the following are considered flam-
mable or corrosive EXCEPT?!
13. When a mechanical appliance is installed in an exca- Copper pan
vation deeper than 12", what shall the excavation be
lined with?
14. Which type of regulator is used in series with an Monitoring
another pressure regulator for the purpose of auto-
matically taking over in an emergency the control of
the pressure down stream in case the pressure tends
to exceed a set maximum?
15. When more than 2 90° elbow's are required in a vent 10%
connector, the maximum capacity of the connector
shall be reduced for each additional 90° elbow by?
16. What is the minimum test pressure that can be used 3 psig
for testing newly installed gas piping?
17. What is the minimum vertical distance to the bottom 12"
of a combustion air intake located on the exterior of
a building above adjacent finish ground level?
18. A residential boiler or furnace with a listed gas con- 6"
version burner and draft hood with a type B gas vent
shall have a minimum clearance from combustible
materials of?
19. What is the maximum btu/hr input for an unlisted dec- 50,400 BTU
orative appliance installed in a vented fireplace with
an 18 foot tall chimney and permanent free opening
area of 29 in.²?
20. Cast Iron
4/6/2026 2026-04-06 2026/04/06
