Expert Exam Questions with 100%
Correct Clear Verified Answers| All
Graded A+|Latest Premium
Update|100% Guaranteed Success.
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
Appliances and equipment shall be furnished either with load distributing bases or
with a sufficient number of ________ to prevent damage to either the building
structure or the appliance and the equipment. - Answer✅✅Supports