PROPANE PRACTICE Test
Questions and Complete
Solutions Graded A+
According to the Two Permanent Openings Method one opening must commence within ____ and one
must commence within ___ of the enclosure - Answer: 12 inches of the top 12 inches of the bottom
Room heaters shall NOT be installed in what occupancies? - Answer: Health care and Residential board
and care.
Define a type B-W gas vent: - Answer: It shall not have a listed capacity NOT LESS than that of the listed
vented wall furnace to which it is connected.
Listed vented wall furnaces shall use which type of venting system? - Answer: Type B-W gas vent
NO portion of a venting system shall extend or pass through any.... - Answer: Fabricated air duct OR
Furnace plenum
The exit terminals of mechanical draft systems shall not be LESS than ___________ when located
adjacent to public walkways. - Answer: 7 ft above finished ground level
Forced draft systems and all portions of induced draft systems under positive pressure during operation
shall be designed and installed so as to _____________. - Answer: Prevent leakage of flue gases into the
building
Mechanical draft systems shall be _______ . - Answer: Listed
A chimney for residential type or low heat appliances shall extend at least 2 feet higher than any portion
of a building within a horizontal distance of _______. - Answer: 10 feet
,Category I Vented appliance - Answer: An appliance that operates with a non-positive vent static
pressure and with a vent gas temperature that avoids excessive condensate production in the vent.
Type 1 and Type 2 clothes dryers shall be exhausted to the ________. - Answer: Outside
Ventilating hoods and exhaust systems shall be ________ installed in commercial applications and to
vent industrial equipment. - Answer: Permitted to vent gas appliances
What appliances are NOT required to be vented? - Answer: Counter appliances or Direct gas-fired make-
up air heaters
What is the correct spacing of supports for 3/4" or 1" steel pipe? - Answer: Every 8 feet
Regarding indoor combustion air, what method states the minimum volume shall be 50 cube feet per
1000 Btu/hour? - Answer: Standard method
All dispensers shall be installed on what type of foundation? - Answer: Concrete
The number of containers in a building undergoing minor renovations shall NOT exceed the ________
assigned to using the LP-gas. - Answer: Number of workers and shall not exceed ______ lbs in size
Aboveground containers shall be ________. - Answer: Painted
All regulators for outdoor installations shall be designed, _______ or protected so that operation will not
be affected by the elements. - Answer: Installed
Temperature sensitive elements of emergency shutoff valves shall NOT be ________ . - Answer: Painted
In a piping system where condensation of vapor can occur, piping shall be _______, or means shall be
provided for re-vaporizing the condensate. - Answer: sloped back to the container
, What is the minimum cover that should be maintained over all underground metallic piping? - Answer:
12 inches
Polyethylene piping systems shall be limited to vapor service not exceeding ________. - Answer: 30 psig
A listed __________ shall be installed at the discharge end of the transfer hose at vehicle fuel
dispensers. - Answer: Quick-acting shutoff valve
Metallic pipe joints shall be permitted to be ____________ using proper pipe and fittings. - Answer:
Welded or Brazed
Flexible metallic connectors shall NOT exceed _________ in overall length when used with liquid or
vapor piping on stationary containers of 2000 gallon w.c. or less. - Answer: 5 feet
Hose length at a motor fuel dispensing station may NOT exceed _____________ unless approved by
AHJ. - Answer: 18 feet
Unlisted air-conditioning appliances shall be installed with clearances from combustible material of NOT
less than ____________ above the appliance and at the sides, front, and rear. - Answer: 18 inches
The _______ employed for operating the automatic main gas control valve, automatic pilot, room
temperature thermostat, limit control, other electrical devices used with the appliances shall be in
accordance with the wiring diagrams certified or approved by the original appliance manufacturer. -
Answer: Electrical circuit
The sediment trap shall be installed as close to the inlet of the equipment as practical at the
___________. - Answer: Time of equipment installation
With regard to the indoor use of nonmetallic gas hose connectors, an equipment shutoff valve shall be
installed where the connector is ________. - Answer: Attached to the building piping
The cross-sectional area of the common vent shall be _______________ the cross-sectional area of the
largest connector. - Answer: Equal to or greater than
Questions and Complete
Solutions Graded A+
According to the Two Permanent Openings Method one opening must commence within ____ and one
must commence within ___ of the enclosure - Answer: 12 inches of the top 12 inches of the bottom
Room heaters shall NOT be installed in what occupancies? - Answer: Health care and Residential board
and care.
Define a type B-W gas vent: - Answer: It shall not have a listed capacity NOT LESS than that of the listed
vented wall furnace to which it is connected.
Listed vented wall furnaces shall use which type of venting system? - Answer: Type B-W gas vent
NO portion of a venting system shall extend or pass through any.... - Answer: Fabricated air duct OR
Furnace plenum
The exit terminals of mechanical draft systems shall not be LESS than ___________ when located
adjacent to public walkways. - Answer: 7 ft above finished ground level
Forced draft systems and all portions of induced draft systems under positive pressure during operation
shall be designed and installed so as to _____________. - Answer: Prevent leakage of flue gases into the
building
Mechanical draft systems shall be _______ . - Answer: Listed
A chimney for residential type or low heat appliances shall extend at least 2 feet higher than any portion
of a building within a horizontal distance of _______. - Answer: 10 feet
,Category I Vented appliance - Answer: An appliance that operates with a non-positive vent static
pressure and with a vent gas temperature that avoids excessive condensate production in the vent.
Type 1 and Type 2 clothes dryers shall be exhausted to the ________. - Answer: Outside
Ventilating hoods and exhaust systems shall be ________ installed in commercial applications and to
vent industrial equipment. - Answer: Permitted to vent gas appliances
What appliances are NOT required to be vented? - Answer: Counter appliances or Direct gas-fired make-
up air heaters
What is the correct spacing of supports for 3/4" or 1" steel pipe? - Answer: Every 8 feet
Regarding indoor combustion air, what method states the minimum volume shall be 50 cube feet per
1000 Btu/hour? - Answer: Standard method
All dispensers shall be installed on what type of foundation? - Answer: Concrete
The number of containers in a building undergoing minor renovations shall NOT exceed the ________
assigned to using the LP-gas. - Answer: Number of workers and shall not exceed ______ lbs in size
Aboveground containers shall be ________. - Answer: Painted
All regulators for outdoor installations shall be designed, _______ or protected so that operation will not
be affected by the elements. - Answer: Installed
Temperature sensitive elements of emergency shutoff valves shall NOT be ________ . - Answer: Painted
In a piping system where condensation of vapor can occur, piping shall be _______, or means shall be
provided for re-vaporizing the condensate. - Answer: sloped back to the container
, What is the minimum cover that should be maintained over all underground metallic piping? - Answer:
12 inches
Polyethylene piping systems shall be limited to vapor service not exceeding ________. - Answer: 30 psig
A listed __________ shall be installed at the discharge end of the transfer hose at vehicle fuel
dispensers. - Answer: Quick-acting shutoff valve
Metallic pipe joints shall be permitted to be ____________ using proper pipe and fittings. - Answer:
Welded or Brazed
Flexible metallic connectors shall NOT exceed _________ in overall length when used with liquid or
vapor piping on stationary containers of 2000 gallon w.c. or less. - Answer: 5 feet
Hose length at a motor fuel dispensing station may NOT exceed _____________ unless approved by
AHJ. - Answer: 18 feet
Unlisted air-conditioning appliances shall be installed with clearances from combustible material of NOT
less than ____________ above the appliance and at the sides, front, and rear. - Answer: 18 inches
The _______ employed for operating the automatic main gas control valve, automatic pilot, room
temperature thermostat, limit control, other electrical devices used with the appliances shall be in
accordance with the wiring diagrams certified or approved by the original appliance manufacturer. -
Answer: Electrical circuit
The sediment trap shall be installed as close to the inlet of the equipment as practical at the
___________. - Answer: Time of equipment installation
With regard to the indoor use of nonmetallic gas hose connectors, an equipment shutoff valve shall be
installed where the connector is ________. - Answer: Attached to the building piping
The cross-sectional area of the common vent shall be _______________ the cross-sectional area of the
largest connector. - Answer: Equal to or greater than
