Alabama Gas Test Exam || Most Recent Exam 2026-2027
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unless an equal or greater volume of supply air is delivered to
a room return air
shall not be taken from a room with a volume less than
____ of the entire
volume served by the system - ANSWER -25%/618.5 #4
prohibited sources
in general return air for forced air heating system is permitted
to be obtained
from a _____ - ANSWER -sleeping room/618.5
prohibited sources
unless specified differently by the furnace manufacturers
installation instructions the minimum unobstructed total area of
supply ducts from a forced air warm air furnace shall be not
less than ____ per 1,000 btu/h output rating capacity of the
furnace - ANSWER -2 sq inches/618.2 forced air furnaces
,unless the prescribed vertical clearance dimensions are
maintained the inlet for
outside or return air for a forced air heating system shall not
be located less
than ____ from a plumbing vent termination - ANSWER -10
feet/618.5 #1
prohibited
sources
factory built chimneys listed in accordance with ul 959 for
medium heat appliances are designed for flue gases having a
temperature above ______ - ANSWER -1,000 degrees/506.3
medium heat appliances
generally for vent systems serving more than one appliance an
8 inch diameter
connector is limited to a maximum horizontal length of _____
- ANSWER -12
feet/table 504.3.2 maximum vent
connector length
The bottom of the vent terminal and air intake for a direct-vent
appliance shall
be located at least ___________ inches above finished
ground level. -
ANSWER -12/ 503.8 #3 Venting system
termination location
,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 -
ANSWER -9/ 503.8 #3 venting system
Termination location
In general, a vent connector for a Category I appliance shall
slope upward toward the chimney or vent at least ___________
inch per foot. - ANSWER -1/.10.8 Slope
On a roof with a 4/12 slope, an 8-inch Type B vent located 12
feet from a vertical wall shall terminate a minimum of
_________ inches above the roof. - ANSWER -12/ Figure 503.6.4
Termination locations for gas vents
Type B or L vent shall terminate at least _________ feet in
vertical height above the highest appliance draft hood or flue
collar. - ANSWER -5/ 503.6.5 Minimum Height
Chimneys serving medium heat appliances shall extend at least
10 feet higher than any portion of any building within _________
feet. - ANSWER -25/ 503.5.4 Chimney Termination
Where required to protect vents from physical damage,
protective shield plates shall extend a minimum of ___________
inches above sole plates and below top plates. - ANSWER -4/
502.7 Protection against physical damage
, Chimneys serving residential or low heat appliances shall
terminate at least 2
feet higher than any portion of a building within a
horizontal distance of
________ feet. - ANSWER -10/ 503.5.4 Chimney
Termination
Termination for chimneys serving residential type or low heat
appliances shall extend at least ___________ feet above the
highest point where they pass through a roof or a building. -
ANSWER -3/ 503.5.4 Chimney Termination
For mechanical draft systems, exit terminals located adjacent
to public walkways shall be not less than _____________ feet
above finished ground level. - ANSWER -7/ 503.3 #6 Mechanical
draft systems
Vents passing through insulated assemblies require an
insulation shield constructed of steel with a minimum thickness
of ____________ - ANSWER -
0.0187 (No. 26 gage)/ 502.4 Insulated shield
To protect vents in a concealed location from physical damage,
steel shield plates shall have a minimum thickness of
____________. - ANSWER -No. 16 gage/ 502.7 Protection
against physical damage.,
A common gas vent serving appliances on more than one floor
level shall be permitted for _____________ appliances, provided
Actual Complete Real Exam Questions And Correct
Answers (Verified Answers) Already Graded A+ |
Guaranteed Success | Newest Exam | Just
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unless an equal or greater volume of supply air is delivered to
a room return air
shall not be taken from a room with a volume less than
____ of the entire
volume served by the system - ANSWER -25%/618.5 #4
prohibited sources
in general return air for forced air heating system is permitted
to be obtained
from a _____ - ANSWER -sleeping room/618.5
prohibited sources
unless specified differently by the furnace manufacturers
installation instructions the minimum unobstructed total area of
supply ducts from a forced air warm air furnace shall be not
less than ____ per 1,000 btu/h output rating capacity of the
furnace - ANSWER -2 sq inches/618.2 forced air furnaces
,unless the prescribed vertical clearance dimensions are
maintained the inlet for
outside or return air for a forced air heating system shall not
be located less
than ____ from a plumbing vent termination - ANSWER -10
feet/618.5 #1
prohibited
sources
factory built chimneys listed in accordance with ul 959 for
medium heat appliances are designed for flue gases having a
temperature above ______ - ANSWER -1,000 degrees/506.3
medium heat appliances
generally for vent systems serving more than one appliance an
8 inch diameter
connector is limited to a maximum horizontal length of _____
- ANSWER -12
feet/table 504.3.2 maximum vent
connector length
The bottom of the vent terminal and air intake for a direct-vent
appliance shall
be located at least ___________ inches above finished
ground level. -
ANSWER -12/ 503.8 #3 Venting system
termination location
,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 -
ANSWER -9/ 503.8 #3 venting system
Termination location
In general, a vent connector for a Category I appliance shall
slope upward toward the chimney or vent at least ___________
inch per foot. - ANSWER -1/.10.8 Slope
On a roof with a 4/12 slope, an 8-inch Type B vent located 12
feet from a vertical wall shall terminate a minimum of
_________ inches above the roof. - ANSWER -12/ Figure 503.6.4
Termination locations for gas vents
Type B or L vent shall terminate at least _________ feet in
vertical height above the highest appliance draft hood or flue
collar. - ANSWER -5/ 503.6.5 Minimum Height
Chimneys serving medium heat appliances shall extend at least
10 feet higher than any portion of any building within _________
feet. - ANSWER -25/ 503.5.4 Chimney Termination
Where required to protect vents from physical damage,
protective shield plates shall extend a minimum of ___________
inches above sole plates and below top plates. - ANSWER -4/
502.7 Protection against physical damage
, Chimneys serving residential or low heat appliances shall
terminate at least 2
feet higher than any portion of a building within a
horizontal distance of
________ feet. - ANSWER -10/ 503.5.4 Chimney
Termination
Termination for chimneys serving residential type or low heat
appliances shall extend at least ___________ feet above the
highest point where they pass through a roof or a building. -
ANSWER -3/ 503.5.4 Chimney Termination
For mechanical draft systems, exit terminals located adjacent
to public walkways shall be not less than _____________ feet
above finished ground level. - ANSWER -7/ 503.3 #6 Mechanical
draft systems
Vents passing through insulated assemblies require an
insulation shield constructed of steel with a minimum thickness
of ____________ - ANSWER -
0.0187 (No. 26 gage)/ 502.4 Insulated shield
To protect vents in a concealed location from physical damage,
steel shield plates shall have a minimum thickness of
____________. - ANSWER -No. 16 gage/ 502.7 Protection
against physical damage.,
A common gas vent serving appliances on more than one floor
level shall be permitted for _____________ appliances, provided
