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Exam (elaborations)

IFGC Questions and Correct Answers the Latest Update
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Guards are not required for rooftop appliances requiring service where approved permanent __________________ devices are installed fall restraint Unvented room heaters shall be equipped with an _________________________________ safety shutoff system oxygen-depletion-sensitive ____________...

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  • November 7, 2024
  • 37
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • ifgc questions and correct answers the latest upd

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  • IFGC
  • IFGC

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IFGC Questions and Correct Answers the
Latest Update
Guards are not required for rooftop appliances requiring service where

approved permanent __________________ devices are installed


✓ fall restraint



Unvented room heaters shall be equipped with an

_________________________________ safety shutoff system


✓ oxygen-depletion-sensitive



____________________________________ and

_____________________________________ plastic pipe, tubing and fittings shall not

be used to supply fuel gas


✓ polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC)



Self-service LP-gas motor vehicle dispensing systems shall be provided with an

emergency shutoff switch located within ____ feet of, but not less than ___ feet

from, dispensers


✓ 100, 20



Masonry chimneys shall be lines with approved clay flue lining, a listed chimney

lining system or other approved materials that will resist corrosion, erosion,

softening or cracking from vent gases at temperatures up to ____ F.

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✓ 1,800



Where residential compressed natural gas (CNG) fueling appliances are located

indoors, a gas detector shall be located within __ inches of the highest point of

the room or space


✓ 6



The lowest portion of the floor furnace shall have not less than a _____ inch

clearance from the grade level


✓ 6



The controls, combustion air inlets and draft hoods for duct furnaces shall be

located _____ of the ducts


✓ outside



Unvented room heaters shall not be installed within occupancies in Groups __,

__, and __


✓ A, E, I



Duct furnaces shall be installed on the _________ pressure side of the circulating

air blower


✓ positive




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nonrecirculating direct-fired industrial air heaters shall not be used to supply

any area containing ________ quarters.


✓ sleeping



Uninsulated single-wall metal pipe shall not be used outdoors for venting

appliances where the 99-percent winter design temperature is below ____ F


✓ 32



Suspended-type unit heaters shall be installed with clearances to combustible

materials of not less than __ inches at the sides, ___ inches at the bottom and

___ inches above the top where the unit heater has an internal draft hood


✓ 18, 12, 6



To protect against the effects of normal vibration, gas engines for air-

conditioning appliances shall not be _________ connected to the gas supply

piping


✓ rigidly



For outdoors locations, the maximum rated output capacity of hydrogen

generating appliances shall not exceed __ standard cubic feet per minute of

hydrogen for each 250 square feet of floor area


✓ 4




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The maximum horizontal length of a single-wall vent connector shall be ____

percent of the height of the chimney or vent except for the engineered systems


✓ 75



For supporting illuminating appliances, the strength and rigidity of posts greater

than ___ feet in height shall be at least equivalent to that of a 2.5 inch-diameter

post constructed of 0.064 inch-thick steel or a 1 inch _____________ steel pipe


✓ 3, schedule 40



Hydrogen gas cylinders for indoor storage and use in occupancies regulated by

the International Residential Code shall not exceed ___ cubic feet at normal

temperature and pressure (NTP)


✓ 250



Unvented room heaters shall not have an input rating in excess of ___ Btu/h


✓ 40,000



Clothes dryer installations exhausting more than ___ cfm shall be provided with

makeup air


✓ 200



Dryer ducts shall not be connected or installed with ___________ screws or other

fasteners that will obstruct the flow



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