IFGC Test Exam Questions and Answers
Excess Flow Valve - answersA valve designed to activate when the fuel gas passing through it exceeds a prescribed flow rate
Category II - answersAn appliance that operates with a non-positive vent static pressure and with a vent gas temperature that is c...
Excess Flow Valve - answers✓✓A valve designed to activate when the fuel gas passing through
it exceeds a prescribed flow rate
Category II - answers✓✓An appliance that operates with a non-positive vent static pressure and
with a vent gas temperature that is capable of causing excessive condensate production in the
vent is a ______ appliance.
1/3 - answers✓✓Holes bored in a floor joist shall not exceed _____ their depth.
60% - answers✓✓Bored holes shall not be greater than _____ of the stud depth in non-load
bearing walls where each bored stud is doubled.
Bathroom - answers✓✓Gas appliances shall not be located in a _____ unless it meets one of the
approved exceptions.
Bathroom if it is 6000 BTUs or less - answers✓✓A single wall mounted unvented natural gas
room heater equipped with an oxygen depletion safety system may be installed in a _____.
50 - answers✓✓Indoor combustion air for gas appliances using the standard method is sized
based on a _____ cubic feet per 1000 BTU/H of the appliance input rating.
6100 CU FT - answers✓✓How many cubic feet of space would be required to use the standard
method of combustion air for gas appliances if you had a space with a 60,000 BTU fan assisted
furnace, 34,000 BTU natural draft water heater and a 28,000 BTU gas dryer
216,320 - answers✓✓What would the maximum gas appliance BTU input be for an open
basement measuring 26' x 52' with an 8' ceiling to be able to use the standard combustion air
method?
100 sq in - answers✓✓When combining spaces on the same story to obtain the required
combustion air for gas appliances each opening shall be sized a minimum of 1 sq in for the total
input rating of all gas appliances but not less than _____ sq in.
3" - answers✓✓The minimum dimension of air openings for combustion air for gas appliances.
4,000 BTU - answers✓✓When using two permanent openings to provide combustion air for gas
appliances and communicating directly with the outdoors, each opening shall have a minimum
free area of 1 sq in for every _____ total input rating of all equipment in the enclosure.
3,000 BTU - answers✓✓When installing all gas appliances, combustion air is allowed to utilize
one permanent opening commencing within 12" from the top of the enclosure. The opening must
be a minimum of 1 sq in for every _____ total appliance input.
0.35 - answers✓✓When mechanical combustion air is provided for gas appliances, the
combustion air shall be supplied from the outdoors at a rate not less than _____ CFM per 1,000
BTU/H of total input rating of all appliances located within the space.
Make up - answers✓✓Where exhaust fans are installed, _____ air shall be provided to replace
the exhausted air.
25,75 - answers✓✓Where the design free area of louvers and grilles are not known, it shall be
assumed that wood louvers will have _____% free area and metal louvers will have _____% free
area.
Screened - answers✓✓Combustion air ducts for gas appliances shall not be _____ where
terminating in an attic.
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