HVAC JOURNEYMAN PREP TEST
100% SOLVED
, A listed smoke damper designed to resist the passage of smoke shall be provided at
each point in a duct or air transfer opening penetrates a: (A)smoke barrier wall (B)fire
rated wall (C)interior wall (D)corridor wall - ANSWERSCorridor wall (IMC 607.5.4)
Flexible air duct may be what length? (A)10' (B)2' (C)14' (D)6' - ANSWERS14' (IMC
603.6.1.1)
The maximum vertical distance between the front lower lip of a canopy Type 1 hood and
the appliance surface shall be ____ feet: (A)5' (B)3' (C)6' (D)4' - ANSWERS4' (IMC
507.4.1)
The return air duct to a blower type warm air furnace is being replaced, how many sq.
inches of free air are required per 1,000 BTU or rated capacity of the furnace? (A)3"
(B)1" (C)4" (D)2" - ANSWERS2" (Fuel Gas Code 9.3.3.2)
The existing terminals of a mechanical draft system shall not be less than ___ feet
above finished ground level where located adjacent to public walkways: (A)7' (B)2' (C)8'
(D)5' - ANSWERS7' (IMC 804.3.4 #1)
What device is installed to prevent a back draft occurring in an appliance? (A)Power
draft vent (B)Vent cap (C)Saftey relief valve (D)Draft hood - ANSWERSDraft hood (Fuel
Gas Code, 3.3.33)
Minimum distance between the lowest edge of a grease filter and the cooking surface
with exposed flame or burners is: (A)42" (B)6" (C)48" (D)24" - ANSWERS24" (IMC
Table 507.2.8)
Non-metallic ducts shall have a flame spread index of ___ or less and a smoke-
devolped index of ___ or less: (A)100,200 (B)84,723 (C)50,100 (D)25,50 -
ANSWERS25,50 (IMC 602.2.1)
A blower fan used for the purpose of distributing supply air to a room, space, or area is
a: (A)Air-handling unit (B)Return fan (C)Make-up fan (D)Exhaust fan - ANSWERSAir
handling unit (IMC Chapter #2)
Maximum flame spread distance of ___ feet for combustable electrical wires, cables,
and optical fiber cables exposed within a plenum: (A)30' (B)3' (C)70' (D)5' -
ANSWERS5' (IMC 602.2.1.1)
Where all combustion air is provided by a mechanical air supply system, the combustion
air shall be supplied from outdoors at the minimum rate of: (A)100ft3/1000BTU/hr
100% SOLVED
, A listed smoke damper designed to resist the passage of smoke shall be provided at
each point in a duct or air transfer opening penetrates a: (A)smoke barrier wall (B)fire
rated wall (C)interior wall (D)corridor wall - ANSWERSCorridor wall (IMC 607.5.4)
Flexible air duct may be what length? (A)10' (B)2' (C)14' (D)6' - ANSWERS14' (IMC
603.6.1.1)
The maximum vertical distance between the front lower lip of a canopy Type 1 hood and
the appliance surface shall be ____ feet: (A)5' (B)3' (C)6' (D)4' - ANSWERS4' (IMC
507.4.1)
The return air duct to a blower type warm air furnace is being replaced, how many sq.
inches of free air are required per 1,000 BTU or rated capacity of the furnace? (A)3"
(B)1" (C)4" (D)2" - ANSWERS2" (Fuel Gas Code 9.3.3.2)
The existing terminals of a mechanical draft system shall not be less than ___ feet
above finished ground level where located adjacent to public walkways: (A)7' (B)2' (C)8'
(D)5' - ANSWERS7' (IMC 804.3.4 #1)
What device is installed to prevent a back draft occurring in an appliance? (A)Power
draft vent (B)Vent cap (C)Saftey relief valve (D)Draft hood - ANSWERSDraft hood (Fuel
Gas Code, 3.3.33)
Minimum distance between the lowest edge of a grease filter and the cooking surface
with exposed flame or burners is: (A)42" (B)6" (C)48" (D)24" - ANSWERS24" (IMC
Table 507.2.8)
Non-metallic ducts shall have a flame spread index of ___ or less and a smoke-
devolped index of ___ or less: (A)100,200 (B)84,723 (C)50,100 (D)25,50 -
ANSWERS25,50 (IMC 602.2.1)
A blower fan used for the purpose of distributing supply air to a room, space, or area is
a: (A)Air-handling unit (B)Return fan (C)Make-up fan (D)Exhaust fan - ANSWERSAir
handling unit (IMC Chapter #2)
Maximum flame spread distance of ___ feet for combustable electrical wires, cables,
and optical fiber cables exposed within a plenum: (A)30' (B)3' (C)70' (D)5' -
ANSWERS5' (IMC 602.2.1.1)
Where all combustion air is provided by a mechanical air supply system, the combustion
air shall be supplied from outdoors at the minimum rate of: (A)100ft3/1000BTU/hr
