Maine Gas (2025) EXAM QUESTIONS
AND ALL CORRECT ANSWERS 100%
SOLVED AND GUARANTEED SUCCESS!!
Minimum vertical height for a Type B-W gas vent above the bottom of a wall
furnace? - (answers)12 Feet
Minimum thickness of a steel striker barrier for gas tubing protection? -
(answers)0.0508"
What is the maximum temp that a clay flue liner must be able to withstand
without cracking? - (answers)1,800 degrees F
Combustion air obtained from indoors on the same story shall have a minimum
of... - (answers)Two openings
When gas is being supplied by a manifold located in a remote area, what is the
maximum distance the shutoff valve at the manifold can be located from the
appliance? - (answers)50 feet
What reference standard covers the storage of liquid propane gas? -
(answers)NFPA 58
A service station is being built with one boiler 28 feet 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? - (answers)1 "
Maximum distance a gas shut-off valve can be installed from the equipment it
serves? - (answers)6 feet
Maximum distance off the ceiling of the room shall an indoor combustion air
opening be installed? - (answers)12"
What is the minimum required clearance for an unlisted pool heater on all sides
and rear? - (answers)12"
Flanges used for gas piping shall have gaskets made of an approved material
designed to withstand temperatures, pressure and chemical constituents of the
gas. Which of the following gasket materials is not acceptable? - (answers)Rubber
When corrosive or flammable fumes or gases are present near appliances, a safe
disposal method shall be provided. All of the following are considered flammable
or corrosive EXCEPT?! - (answers)Anhydrous Citric Acid
When a mechanical appliance is installed in an excavation deeper than 12", what
shall the excavation be lined with? - (answers)Copper pan
Which type of regulator is used in series with an another pressure regulator for
the purpose of automatically taking over in an emergency the control of the
, pressure down stream in case the pressure tends to exceed a set maximum? -
(answers)Monitoring
When more than 2 90° elbow's are required in a vent connector, the maximum
capacity of the connector shall be reduced for each additional 90° elbow by? -
(answers)10%
What is the minimum test pressure that can be used for testing newly installed
gas piping? - (answers)3 psig
What is the minimum vertical distance to the bottom of a combustion air intake
located on the exterior of a building above adjacent finish ground level? -
(answers)12"
A residential boiler or furnace with a listed gas conversion burner and draft hood
with a type B gas vent shall have a minimum clearance from combustible
materials of? - (answers)6"
What is the maximum btu/hr input for an unlisted decorative appliance installed
in a vented fireplace with an 18 foot tall chimney and permanent free opening
area of 29 in.²? - (answers)50,400 BTU
All of the following piping materials are approved to be used for gas piping
except... - (answers)Cast Iron
AND ALL CORRECT ANSWERS 100%
SOLVED AND GUARANTEED SUCCESS!!
Minimum vertical height for a Type B-W gas vent above the bottom of a wall
furnace? - (answers)12 Feet
Minimum thickness of a steel striker barrier for gas tubing protection? -
(answers)0.0508"
What is the maximum temp that a clay flue liner must be able to withstand
without cracking? - (answers)1,800 degrees F
Combustion air obtained from indoors on the same story shall have a minimum
of... - (answers)Two openings
When gas is being supplied by a manifold located in a remote area, what is the
maximum distance the shutoff valve at the manifold can be located from the
appliance? - (answers)50 feet
What reference standard covers the storage of liquid propane gas? -
(answers)NFPA 58
A service station is being built with one boiler 28 feet 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? - (answers)1 "
Maximum distance a gas shut-off valve can be installed from the equipment it
serves? - (answers)6 feet
Maximum distance off the ceiling of the room shall an indoor combustion air
opening be installed? - (answers)12"
What is the minimum required clearance for an unlisted pool heater on all sides
and rear? - (answers)12"
Flanges used for gas piping shall have gaskets made of an approved material
designed to withstand temperatures, pressure and chemical constituents of the
gas. Which of the following gasket materials is not acceptable? - (answers)Rubber
When corrosive or flammable fumes or gases are present near appliances, a safe
disposal method shall be provided. All of the following are considered flammable
or corrosive EXCEPT?! - (answers)Anhydrous Citric Acid
When a mechanical appliance is installed in an excavation deeper than 12", what
shall the excavation be lined with? - (answers)Copper pan
Which type of regulator is used in series with an another pressure regulator for
the purpose of automatically taking over in an emergency the control of the
, pressure down stream in case the pressure tends to exceed a set maximum? -
(answers)Monitoring
When more than 2 90° elbow's are required in a vent connector, the maximum
capacity of the connector shall be reduced for each additional 90° elbow by? -
(answers)10%
What is the minimum test pressure that can be used for testing newly installed
gas piping? - (answers)3 psig
What is the minimum vertical distance to the bottom of a combustion air intake
located on the exterior of a building above adjacent finish ground level? -
(answers)12"
A residential boiler or furnace with a listed gas conversion burner and draft hood
with a type B gas vent shall have a minimum clearance from combustible
materials of? - (answers)6"
What is the maximum btu/hr input for an unlisted decorative appliance installed
in a vented fireplace with an 18 foot tall chimney and permanent free opening
area of 29 in.²? - (answers)50,400 BTU
All of the following piping materials are approved to be used for gas piping
except... - (answers)Cast Iron
