Gas Codes Flashcards
A means to interrupt the electrical supply to a gas fired air conditioning appliance shall be provided within sight of and not more than ________ feet from the appliance.
a. 25
b. 50
c. 75
d. 100
50
REF = 627.10
A mechanical combustion air system shall supply outdoor air at a rate not less than ________ cfm per 1000 Btu/h of total input rating of all appliances located within the space.
a. 15
b. 21
c. 0.50
d. 0.35
0.35
REf = 304.9
Clothes dryer installations exhausting more than ___________ cfm shall be provided with makeup air.
a. 200
b. 400
c. 500
d. 600
200
REF = 614.6
Unless located within a dwelling unit, rooms containing appliances shall be provided with a door and an unobstructed passageway measuring not less than _______ inches wide and 80 inches high.
a. 24
b. 32
c. 36
d. 30
36
REF = 306.2
Gas vents shall terminate not less than 3 feet above any forced air inlet located within ___________ feet.
a. 5
b. 10
c. 15
d. 20
10
REF = 503.6.8
Gas vents terminating less than 8 feet from a vertical wall shall terminate not less than _________ feet above any portion of a building within 10 feet.
a. 2
b. 3
c. 5
d. 6
2
REF = 503.6.4 #2
An installation is not required to be brought into compliance if it is ________ at the time of adoption of the code.
a. listed
b. labeled
c. operational
d. lawfully in existence
d
REF= 102.2
Catwalks installed to provide the required access to rooftop equipment shall be a minimum of _______ inches wide.
a. 36
b. 30
c. 24
d. 18
24
REF = 306.5 #10
The test duration for testing a gas piping system with a volume less than 10 cubic feet must be not less than _________ minutes.
a. 60
b. 30
c. 10
d. 5
10
REF = 406.4.2
The vent pipe for pressure regulators shall be designed to prevent _________.
a. the release of fuel gas
b. back preesure
c. rupture of the regulator diaphragm
d. the entry of insects
the entry of insects
REF = 410.3
A single wall metal pipe vent shall terminate at least \_\_\_\_\_\_\_\_ feet in vertical height above the highest appliance draft hood outlet. A. 5 B. 10 C. 15 D. 20
5
REF = 503.7.3
Appliances having an ignition source shall be elvated such that the ignition source is not less than ________ inches above the floor in a private garage.
a. 12
b. 18
c. 6
d. 30
18
REF 305.3
LP - gas motor vehicle fuel - dispensing facilities that are self - service require an emergency shut-off switch located a maximum of __________ feet from the dispenser.
a. 25
b. 50
c. 75
d. 100
100
REF= 412.9 #2
Where the air-infiltration- rate is unknown, a room or space providing indoor combustion air requires a minimum volume of _________ cubic feet per 1,000 Btu/h of the appliance input rating.
a. 15
b. 25
c. 50
d. 75
50
REF = 304.5.1
For vents passing through an attic, the attic insulation shield shall extend at least ________ inches above the insulation material.
a. 6
b. 12
c. 2
d. 4
2
REF = 502.4
For a residential furncance with a listed gas conversion burner and draft hood, a single wall metal pipe connector requires a minimum clearance of \_\_\_\_\_\_\_\_\_\_ inches to combustible materials. A. 9 B. 18 C. 6 D. 12
9
REF = Table 503.10.5
Barometric draft regulators shall be installed in a manner to prevent any difference in pressure between the regulator and the \_\_\_\_\_\_\_\_ air supply. A. Ambient B. Combustion C. Makeup D. Ventilation
combustion
REF = 503.12.5
For mechanical draft systems, exit terminals located adjacent to public walkways shall be not less than _________ feet above finshed ground level.
a. 12
b. 4
c. 7
d. 10
7
REF = 503.3.3 #6
If the permit has not been issued, an application for a permit is considered abandoned ________ days after the date of filing.
a. 30
b. 60
c. 90
d. 180
d
REF= 106.3.2
Commercial clothes dryer exhaust ducts shall have a minimum clearance of ________ inches to combustible constrction.
a. 2
b. 4
c. 6
d. 12
6
REF = 614.9
Required outdoor air inlets for a residential forced air heating system shall be covered with screen having _________ inch opening.
a. 1
b. 3/4
c. 1/2
d. 1/4
1/4
REF = 618.4
Sediment traps are not required for ___________.
a. ranges
b. water heaters
c. boilers
d. forced air furnaces
ranges
REF = 408.4
In general, return air for a forced air heating system is permitted to be obtained from a _____________.
a. garage
b. attic
c. sleeping room
d. kichen
sleeping room
REF = 618.3 #6
Where used, draft hoods and draft barometric regulations shall be installed ________.
a. on the roof of the building
b. in a room adjacent to the appliances
c. at the appliance vent connection
d. in the same room as the appliance
in the same room as the appliance
REF = 304.3
Which of the following individuals is not qualified to serve on the Board of Appeals for the IFGC?
A. a registered design professional who is a registered architect
B. A registeded design professional with fuel gas and plumbing engineering experience.
C. An electricla contractor with at least 10 years of experience, 5 of which the contractor was responsible for the work.
D. a single family dwelling home owner
D
REF=109.2.1
The maximum permitted length of a dryer exhaust duct equipped with a domestic dryer exhaust duct power ventilator is _________.
a. 35 feet
b. determined by the dryer manufacturer’s instructions
c. determined by the power ventilator manufacturer’s instructions
d. 50 feet
C
REF = 614.8.4.3
A vent to the outdoor is not required for a pressure regulator equipped with a _________.
a. breather vent
b. vent limiting device
c. relief vent
d. vent manifold
vent-limiting device
REF = 410.3 Exception
In general, return air for a forced air furnace shall not be taken from a _________.
a. room containing a direct vent appliance
b. crawl space
c. room containing an unvented appliance
d. room containing a soild fuel appliance
b
REF = 618.3 #7
The unthreaded portion of gas piping of gas piping outle must extend not less than _________ inches through finished ceilings and walls.
a. 4
b. 3
c. 2
d. 1
1
REF = 404.16
A gas shutoff valve shall be located within ______ feet of the appliance.
a. 2
b. 5
c. 6
d. 7
6
REF = 409.5.1
A commom gas vent serving appliances on more than one floor level shall be permitted for __________ appliances, provided that the venting system is designed and installed in accordance with approved engineering methods.
a. Category I
b. Catergory II
c. Category III
d. Category IV
Category 1
REF = 503.6.11
Gas piping must not be installed in or through a ________.
a. plenum
b. clothes chute
c. atttic
d. enclosed space
clothes chute
REF = 404.3
An addition to a ful gas installation shall conform to that required for ______ installations.
a. existing
b. new
c. modified
d. relocated
b
REF= 102.4
Unless incorporated as part of the appliance, a sediment trap shall be installed _____________.
a. downstream of the appliacane shut off valve
b. remote from the appliacane loaction
c. upstream of the applicance shut off valve
d. upstream of the manifold
downstream of the appliance shut off valve
REF = 408.4
Where an appliance is located in an attic, a ________ is required at the access opening to the attic passageway.
a. luminaire
b. receptacle outlet
c. level work surface
d. light switch
light switch
REF = 306.3.1
Reduced clearance protective assemblies for gas appliances shall be places a minmum of _______ inch(es) from the appliance.
a. 1/2
b. 1 1/2
c. 1
d. 2
1
REF = 308.2 (1)
Where approved roof-mounted fall-restraint devices are installed in place of a required guards, the devices must be installed every _____ feet or less along the ridge line.
a. 10
b. 15
c. 20
d. 25
10
REF = 306.6 Exception
Conversion of an appliance to a different fuel gas is allowed if in acccordance with the _______ instructions.
a. engingeer’s
b. inspectors
c. manufacturers
d. contractors
manufacturer’s
REF= 301.7.1
Single wall metal pipe vent is permitted to pass through a \_\_\_\_\_\_\_\_\_\_\_ constructed of combustible materials. A. Inside wall B. Attic C. Floor D. Exterior wall
exterior wall
REF = 503.7.6
The bottom of the vent terminal and air intake for a direct vent appliance shall be located at least \_\_\_\_\_\_\_\_\_\_ inches above finshed ground level. A. 6 B. 12 C. 18 D. 24
12
REF = 503.8 Exception # 3
Exterior above-ground gas piping must be elevated not less than ________ inches above ground and rood surfaces.
a. 3 1/2
b. 3
c. 2 1/2
d. 2
3 1/2
REF = 404.9
A type B or L vent shall terminate a least _________ feet in vertical height above the highest appliance draft hood or flue collor.
a. 7
b. 8
c. 5
d. 20
5
REF = 503.6.6
Where double wall vents are installed, fasteners shall __________.
A. Be spaced evenly around the vent
B. Not penetrate the inner wall
C. Not be used at the transition from a flue collar
D. Be aluminum or stainless steel
not penetrate the inner wall
REF = 503.6.14
Using the longest method for sizing gas piping, each section of piping is measured from ___________.
a. the first branch to the appliance
b. the point of delivery to the most remote outlet
c. the point of delivery to the first branch
d. the pressure regulator to the most remote outlet
the point of delivery to the most remote outlet.
REF = 402.4.1
Galvanized steel ducts used for combustion air shall be constructed in accordance with the _________.
a. internaional fuel gas code
b. interational building code
c. interational mechanical code
d. ACCA manual D
International Mechanical Code (IMC)
REF = 304.11 #1
The required permanent notice placed outside of a sauna room warns users to not exceed __________ minutes in the sauna.
a. 30
b. 60
c. 15
d. 45
30
REF = 615.7.1
The minimum finish dimension for a cleanout opening for a common dryer exhaust system in a multi-story building is _________ inches.
a. 24
b. 20
c. 16
d. 12
12
REF = 614.10 # 10
The vent terminal of a direct vent appliance with an input of 20,000 Btu per hour shall be located at least \_\_\_\_\_\_\_\_\_\_ inches from any air opening into a building. A. 12 B. 18 C. 6 D. 9
9
REF = Table 503.8
Unless located in a vault, CNG storage and dispensing equipment is not permitted to be installed less than __________.
a. 10 feet from an ignition source
b. 15 feet from a building
c. 25 feet from a property line
d. 50 feet from a public street
10 feet from an ignition source
REF = 413.3.1 #2
The vent terminal of a direct vent applicance with an input of 60,000 Btu/h shall be located at least \_\_\_\_\_\_\_\_\_\_\_ inches from any air opening into a building. A. 18 B. 6 C. 9 D. 12
9
REF = Table 503.8
Unless a higher limit is set by the manufacturer of an unvented room heater, a required oxygen depletion safety system shall shut off the appliance when the oxygen is depleted to ___________ percent concentreation.
a. 18
b. 8
c. 38
d. 28
18
REF = 621.6
Combustion air requirments for appliances with power burners are determined by ________.
a. the known air infiltration rate method
b. engineering calculations
c. research reports
d. the manufacturer’s instructions
the manufacturer’s instructions
REF= 304.1
Gas piping is permitted to be sized in accordance with the sizing tables of the ___________.
a. gas supplier
b. piping system manufacturer
c. approved testing agency
d. piping supplier
piping system manufacturer
REF = 402.3 #2
For single wall metal peipe to be used outdoor for venting appliances, the 99 percent winter design temperture must not be less than \_\_\_\_\_\_\_\_\_\_\_ degrees Fahrenheit. A. 0 B. 32 C. 40 D. 50
32
REF = 503.7.2
The maximum distance that is allowed between hangers supporting horizontal 1 1/4 inch nominal diameter rigid steel pipe used to supply natural gas to an appliance is ________ feet.
a. 4
b. 6
c. 10
d. 8
10
REF = 415.1 Table
A minimum clearance above grade of _________ inches is required for floor furnces.
a. 6
b. 3
c. 12
d. 18
6
REF = 609.4
For a clearance reduction system using ventilated air space, the system shall maintain an air space clearance to combustible materials of at least __________ inch(es).
a. 1/2
b. 1 1/2
c. 1
d. 2
1
REF = 308.2 (1)
Generally, the relief opening of a draft hood shall be located a minimum of \_\_\_\_\_\_\_\_\_\_ inches from any surface. A. 9 B. 12 C. 3 D. 6
6
REF = 503.12.7
Gas piping must not enter a building ________.
a. underground
b. through a foundation
c. above grade
d. without a sleeve
underground
REF = 404.6
The appliance shutoff valve is permitted to be installed at a manifold that is not greater than ________ feet from the apliance.
a. 6
b. 12
c. 25
d. 50
50
REF = 409.5.3
Vents passing through insulated assemblies require an insulation shield constructed of steel with a minimum thickness of ______________.
a. 0.0187 inch ( no 26 gage)
b. 0.0236 inch ( no 24 gage)
c. 0.0450 inch ( no 18 gage)
d. 0.0575 inch ( no 16 gage)
0.0187 ( No 26 gage)
REF = 502.4
For steel gas piping, threaded fittings larger than _________ inches are not permitted.
a. 2
b. 2 1/2
c. 3
d. 4
4
REF = 403.10.5 #1
Masonry chimney flue shall be provided with a cleanout opening having a minimum height of _________ inches.
a. 4
b. 6
c. 8
d. 10
6
REF = 501.15.3
_________ provide supporting documentation to verfiy that an alternative material or assembly complies with the intent of the code.
a. Reseach reports
b. Manufacturer’s installation instructions
c. inspection reports
d. construction documents
a
REF= 105.2.1
Appliance connections to a chimney or vent equipped with a power exhauster shall be made on the ________ side of the exhauster.
a. outlet
b. inlet
c. positive
d. discharge
inlet REF = 501.10
The minimum clearance to combustible material from the back of the floor mounted unit heater is \_\_\_\_\_\_\_\_\_ inches. a. 18 b. 12 c. 6 d 4
6
REF = 620.4
Decorative shrouds for gas vents shall be listed ________.
a. as complying with UL 1738
b. for use with the specific appliance
c. for the specific gas venting system
d. for use with gas vents
for the specific gas venting system
REF = 503.6.5.1
Appliances in structures located in flood hazard areas shall be located at or above the ______.
a. high water level
b. elevation required by the IBC
c. freeboard
d. 100 year flood level
elevation requied by the IBC
REF= 301.11
Underground nonmetallic gas piping requires a yellow insulated copper tracer wire not less than size __________.
a. 12 awg
b. 14 awg
c. 18 awg
d. 20 awg
18 AWG
404.17.3
Notching at the ends of wood joints shall be exceed _______ the joist depth.
a. 1/2
b. 1/8
c. 3/8
d. 1/4
1/4
REF= 302.3.2
The IFGC regulates piping systems for natural gas with an operating pressure of _______ psig or less.
a. 125
b. 90
c. 5
d. 20
a
REF= 101.2.2
Tests performed by ______ may be required by the code official whre there is insufficient evidence of code compliance.
a. the owner
b. an approved agency
c. the contractor
d. a design professional
b
REF= 105.3.2
Water heaters utilized both to supply potable water and provide hot water for space heating shall be listed and labeled and shall be installed in accordance with the _____________.
a. Intnational fuel gas code
b. international plumbing code
c. international mechanical code
d. international building code
B
REF = 624.2
Where a single meter is used to supply gas to more than one building, a shutoff valve shall be provided _________.
a. at the manifold
b. outdoors at each building
c. inside at the point of entry to each building
d. at an approved location
outdoors at each building
REF = 409.3.2
The floor register of a floor furnace is permitted to be installed ____________.
a. in a stairway landing
b. 4 inches from a wall
c. ina private doorway
d. 12 inches from draperies
12 inches from draperies
REF = 609.2 #3
A vented wall furncace shall be loacted so that a door cannot swing within ___________ inches of the air inlet or outlet.
a. 6
b. 9
c. 12
d. 18
12
REF = 608.4
A dedicated gas shut off valve must be located adjacent to the egress door of a laboratory having _______ or more fuel gas outlets
a. 4
b. 2
c. 8
d. 6
2
REF = 409.6
Where the opening dimension are large enough to allow removal of the largest pece of equipment installed in an underfloor space, the clear access opening to the underfloor area shall be a minimum of _________.
a. 18 in by 24 in
b. 22 in by 24 in
c. 22 in by 30 in
d. 30 in by 30 in
22 inches by 30 inches
REF = 306.4
The following threaded fittings for steel gas piping are allowed in concealed locations except ___________.
a. coupling
b. tees
c. unions
d. elbows
unions
REF = 404.5
Guards are not required for rooftop appliances requiring service where _______.
a. approved fall-restraint devices are installed
b. the appliance is at least 8 feet from the roof edge
c. the roof slope is less than 3/12
d. the roof edge is not greater than 10 feet above grade
approved fall-restraint devices are installed
REF 306.6 Exception
The permit or a copy shall be kept on the site of the work __________.
a. until the completion of the project
b. until the work commences
c. until a certifcate of occupancy is issued
d. for one year after the work is completed
a
REF= 106.5.8
Unless provisions are made for a reduced clearance, domestic cooking appliances shall have a vertical clearance above the cooking top of not less than __________ inches to combustible material and metal cabinets above.
a. 18
b. 24
c. 30
d. 42
30
623.7
The _______ shall be responsible for the maintenance of fuel gas instalations
a. contactor that service the equipment
b. occupant of the structure
c. code authority
d. owner or owner’s athorized agent
d
REF= 102.3
Alternative methods or materials not specifically prescribed by the code are permitted when ______.
a. designed by a registered design professional
b. tested
c. approved
d. listed
c
REF= 105.2
Within dwelling units, unobstructed ________ are permitted to convey combustion air.
a. shafts
b. stude and joist spaces
c. chases enclosing chimneys
d. chimneys
stud and joist spaces
REF = 304.11 Exception
Appliances located in an attic shall be provided with a level service space not less than ________ inches deep and _______ inches wide.
a. 30,24
b. 24,30
c. 30,30
d. 30,36
30,30
REF = 306.3
Where mechanical exhaust interferes with the operation of an appliance, _________ is required.
a. an appliance enclosure
b. makeup air
c. an automatic applicance shut off device
d. an interlock between the applicance and exhaust fan
makeup air
REF = 304.4
The code official has the authority to allow temporary connection of an installation to the sources of energy for the purpose of ________.
a. construction
b. heating
c. lighting
d. testing
D
REF= 107.5
A 4 foot high post supporting an illuminating appliance shall be equivalent in strength to a ________ inch diameter Schedule 40 steel pipe.
a. 3
b. 2 1/2
c. 1
d. 3/4
2 1/2
REF = 628.3
For a direct vent firplace with a sidewall vent, the vent termination must be a minimum of _________ inches from the swing of a door.
a. 12
b. 18
c. 24
d. 6
12
REF = 502.7.1
The IFGC does not apply to _______
a. Lap gas piping systems
b. gaseous hydrogen systems
c. oxygen-fuel gas cutting systems
d. gas appliance ventilation air
c
REF= 101.2.4 #4
A domestic open top broiler shall have a minimum clearance of ________ inches between the cooking top and combustible material above the hood.
a. 30
b. 36
c. 18
d. 24
24
REF = 623.5.1
Where the code official finds that a proposed alternative material does not comply with the intent of the code provisions, the code official shall ______.
a. request additional information from the manufacturer
b. state the reson for disapproval in writing to the applicant
c. contact a third party agency to authorize additional testing
d. place limitations on the use of the alternative material
b
REF= 105.2
Unless otherrwise protected from impact, appliances located in a public garage shall be installed a minimum of ________ feet above the floor.
a. 12
b. 15
c. 10
d. 8
8
REF = 305.4
Cooking appliances installed in areas where domestic cooking operations occur shall be listed and labeled as _______ type appliances for domestic use.
a. residential
b. noncommercial
c. hosuehold
d. dwelling
c
REF = 623.2
Sauna heaters shall be equipped with a thermostat that limits the room temperture to no more than _________ degress Fahrenheit.
a. 175
b. 194
c. 200
d. 210
194
REF = 615.6
Appliances shall not be installed in a location subject to vehicle damage except ________.
a. when listed for that particular installation
b. when installed per the manufactures installation instructions
c. where protected by an aprroved means
d. when installed behind steel barriers
where protected by an approved means
REF = 303.4
Where susceptible to damage from nails or screws, clothes dryer exhaust ducts shall be protected with shield plates when the duct is installed less than ___________ inches from the face of the framing member.
a. 2
b. 1 3/4
c. 1 1/2
d. 1 1/4
1 1/4
REF = 614.7
An addition to a ful gas installation shall conform to that required for ______ installations.
new
REF= 102.4
The test pressure must be not less than ___________ times the proposed maximum working pressure of the gas piping system.
a. 3
b. 2 1/2
c. 2
d. 1 1/2
1 1/2
REF = 406.4.1
Condensate waste and drain lines shall be not less than ______ inch internal diameter.
a. 1
b. 1/2
c. 5/8
d. 3/4
3/4
REF = 307.3
Unlisted appliances _________.
a. are not allowed to be installed
b. require testing conducted by the manufactuer
c. may be approved based upon an approved engineering evaluation
d. are permitted to be installed in accordance with the manufactuer’s installation instructions
may be approved based upon an approved engineering evaluation
REF= 301.3
Residential CNG fueling appliances located outdoors shall be installed _________.
a. on a firm noncombustible base
b. at least 6 inches above the adjoining grade
c. not less than 25 feet from building opening
d. not less than 15 feet from lot lines
on a firm noncombustible base
REF = 413.4.3 # 4
Appliance shut off valves located at a n=manifold are not required to be _______.
a. readily accessible
b. in the same room as the appliance
c. identified
d. protected from damage
in the same room as the appliance
REF = 409.5.3
If a thermostat is not an intergral part of the sauna heater, the heat sensing element shall be located a maximum of __________ inches below the ceiling.
a. 8
b. 4
c. 12
d. 6
6
REF = 615.6
Single wall metal peipe vents shall be constructed of galvanized sheet steel not less than \_\_\_\_\_\_\_\_\_ in thickness. A. 0.0360 B. 0.0304 C. 0.0240 D. 0.0190
0.0304
REF = 503.7.1
One set of apporved construction documents shall be kept _________ while work is in progess.
a. with the registered design professional
b. by the owner of the building
c. at the job site
d. with the contractor
c
REF= 106.5.8
Used pipe, fitting, valves and other materials must not be used in a gas piping system except where they are free of _________.
a. paint
b. corrosion
c. foreign material
d. abrasion
foreign material
REF = 403.2
A union must be installed not more than ______ inches from an MP regulator that is connected to rigid piping.
a. 8
b. 12
c. 18
d. 36
12
REF = 410.2 # 7
