2025 LP GAS MASTER QUALIFER TEST BANK ALL
QUESTIONS WITH ANSWERS 2025/2026 GRADED A +
The joint on Gas Poly shall be designed and installed so that the longitudinal pull-out
resistance of the joint well be at least________ to the tensile strength of the
polyethylene piping material - equal
heat fusion joints shall be made in accordance with qualified procedures which have
been established and proven by test to produce gas-tight joints___________ as strong
as the pipe or tubing being joined - at least
All exposed gas pipe exceeding 12" shall be graded at least 1/4 inch to 10 feet so that -
condensate will drain to underground piping
When drainage cannot be provided, a buried drip shall be installed at the lowest point of
each trapped portion. - A buried drip shall be installed when a meter, regulator, or any
device is installed in exposed piping
A buried drip shall be at least the same size as the running line and shall extend to a
minimum depth of _______ inches underground - 24
Horizontal Support of piping 1/2 inch or less is - 6feet or less
Horizontal Support of 3/4 to 1" shall have hangers spaced - every 8 feet or less
Pipe that is 1 1/4" or greater shall have hangers spaced every - 10 feet (Horizontal)
every floor (vertical)
Other pipe shall be supported is such a manner as to ensure that - strain is not placed
on the fittings.
Exterior piping installed aboveground shall be - protected against damage by means of
curbs or guardrails.
-Risers more than 4 inches from building shall be provided protection.
Buried Poly-Gas pipe is required to have a continuous tracer wire with a minimum AWG
_________ or tape, shall be buried _______ inches above any portion of underground
poly pipe. or tubing that is not encased in metal pipe to facilitate locating the
underground pipe or tubing. - 14 gauge / 6 in
One end of the tracer wire. - shall be brought aboveground at building or riser and shall
be marked so as to be readily identified.
Valves in polyethylene pipe or tubing shall installed as to protect the pipe against -
twisting or shearing (cutting) loads when the valve is operated.
, Valve Boxes shall be installed so as to avoid - transmitting external loads to the valve,
pipe, or tubing.
Thermoplastic valves must conform to - ANSI/ASME B16.40
Each imperfect or damaged piece of Polyethylene pipe need to be - -Replaced
by fusion or mechanical fittings
-Repair clamps shall not be used to cover damaged or leaking sections
Polyethylene piping systems shall be limited to vapor service not exceeding ________. -
30 psig
Where underground pipe or tubing is installed beneath driveways, roads or streets, it
shall be buried at a depth - to prevent damage from vehicular traffic or encased in steel
pipe or bridged (shielded)
A factory-assembled anodeless riser shall be installed between polyethylene pipe and -
above ground piping
Copper tubing shall not be a substitute for a - Factory-assembled anodeless riser
When purging, repairing, replacing, or extending poly pipe or tubing reasonable
precautions to prevent - the buildup and discharge of static electricity shall be taken.
Pressure test of piping before the gas cocks are installed, the piping shall be pressure
tested at _______ psi for a period of _______ min - 15 psi for 30 min
What should be the psi test be after gas cocks are installed? - 5psi for 15min
When appliances are installed at the same time as piping installation, a final pressure
test shall be made (including appliance valves) shall stand a pressure of not less than -
10 inches or more than 14 inches water column for a period of 15min. (0.36-0.5psi)
LP- Gas appliances shall be approved by the - Commission
or nationally recognized laboratory
If gas appliances are not certified for use with LP-gas, a licensee may convert the
appliance to use LP-gas as fuel - provided the licensee tests such appliances for proper
operation before placing them in service
Upon completion of the conversion and testing of the LP-gas appliance, the licensee
shall - attach to the appliance a decal or tag of metal or other permanent material
indicating the following information:
1) Licensee's name
2) LP-gas license number
3) the year the appliance was converted
QUESTIONS WITH ANSWERS 2025/2026 GRADED A +
The joint on Gas Poly shall be designed and installed so that the longitudinal pull-out
resistance of the joint well be at least________ to the tensile strength of the
polyethylene piping material - equal
heat fusion joints shall be made in accordance with qualified procedures which have
been established and proven by test to produce gas-tight joints___________ as strong
as the pipe or tubing being joined - at least
All exposed gas pipe exceeding 12" shall be graded at least 1/4 inch to 10 feet so that -
condensate will drain to underground piping
When drainage cannot be provided, a buried drip shall be installed at the lowest point of
each trapped portion. - A buried drip shall be installed when a meter, regulator, or any
device is installed in exposed piping
A buried drip shall be at least the same size as the running line and shall extend to a
minimum depth of _______ inches underground - 24
Horizontal Support of piping 1/2 inch or less is - 6feet or less
Horizontal Support of 3/4 to 1" shall have hangers spaced - every 8 feet or less
Pipe that is 1 1/4" or greater shall have hangers spaced every - 10 feet (Horizontal)
every floor (vertical)
Other pipe shall be supported is such a manner as to ensure that - strain is not placed
on the fittings.
Exterior piping installed aboveground shall be - protected against damage by means of
curbs or guardrails.
-Risers more than 4 inches from building shall be provided protection.
Buried Poly-Gas pipe is required to have a continuous tracer wire with a minimum AWG
_________ or tape, shall be buried _______ inches above any portion of underground
poly pipe. or tubing that is not encased in metal pipe to facilitate locating the
underground pipe or tubing. - 14 gauge / 6 in
One end of the tracer wire. - shall be brought aboveground at building or riser and shall
be marked so as to be readily identified.
Valves in polyethylene pipe or tubing shall installed as to protect the pipe against -
twisting or shearing (cutting) loads when the valve is operated.
, Valve Boxes shall be installed so as to avoid - transmitting external loads to the valve,
pipe, or tubing.
Thermoplastic valves must conform to - ANSI/ASME B16.40
Each imperfect or damaged piece of Polyethylene pipe need to be - -Replaced
by fusion or mechanical fittings
-Repair clamps shall not be used to cover damaged or leaking sections
Polyethylene piping systems shall be limited to vapor service not exceeding ________. -
30 psig
Where underground pipe or tubing is installed beneath driveways, roads or streets, it
shall be buried at a depth - to prevent damage from vehicular traffic or encased in steel
pipe or bridged (shielded)
A factory-assembled anodeless riser shall be installed between polyethylene pipe and -
above ground piping
Copper tubing shall not be a substitute for a - Factory-assembled anodeless riser
When purging, repairing, replacing, or extending poly pipe or tubing reasonable
precautions to prevent - the buildup and discharge of static electricity shall be taken.
Pressure test of piping before the gas cocks are installed, the piping shall be pressure
tested at _______ psi for a period of _______ min - 15 psi for 30 min
What should be the psi test be after gas cocks are installed? - 5psi for 15min
When appliances are installed at the same time as piping installation, a final pressure
test shall be made (including appliance valves) shall stand a pressure of not less than -
10 inches or more than 14 inches water column for a period of 15min. (0.36-0.5psi)
LP- Gas appliances shall be approved by the - Commission
or nationally recognized laboratory
If gas appliances are not certified for use with LP-gas, a licensee may convert the
appliance to use LP-gas as fuel - provided the licensee tests such appliances for proper
operation before placing them in service
Upon completion of the conversion and testing of the LP-gas appliance, the licensee
shall - attach to the appliance a decal or tag of metal or other permanent material
indicating the following information:
1) Licensee's name
2) LP-gas license number
3) the year the appliance was converted
