KY HVAC JOURNEYMAN EXAM AND PREP TEST EXAM 100 UESTIONS
AND CORRECT ANSWERS TOP RATED VERSION FOR LREADY A
GRADED WITH EXPERT FEEDBACK|BRAND EW!|REVISED
Positive mechanical ventilation which provides a minimum of ______ complete air changes per hour
shall be installed in limited spraying spaces
a: six
b: four
c: five
d: eight - CORRECT ANSWERWER-a: six
Refer: IMC Code 502.7.2
The use of gypsum boards to form plenums shall be limited to systems where the air temperatures
do not exceed ______ :
a: 100°F
b: 125°F
c: 200°F
d: 150°F - CORRECT ANSWERWER-b: 125°F
Refer: IMC Code 602.2
The operating temperature of fire damper actuating device shall be approximately ______ above the
normal temperature within the duct system:
a: 100°F
b: 25°F
c: 75°F
d: 50°F - CORRECT ANSWERWER-d: 50°F
Refer: IMC Code 607.3.3.1.1
Mechanical draft system Vents shall terminate horizontally at least _____ above any forced air inlet
located within 10 feet:
a: 5 feet
,b: 2 feet
c: 3 feet
d: 4 feet - CORRECT ANSWERWER-c: 3 feet
Refer: IMC Code 804.3.4.2
Manual dampers shall be installed in connectors except in chimney connectors serving solid fuel-
burning appliances:
True
False - CORRECT ANSWERWER-False
Refer: IMC Code 803.5
The vent vertical termination for mechanical draft system shall be located at least horizontally _____
from any portion of the roof structure:
a: 2 feet
b: 3 feet
c: 5 feet
d: 4 feet - CORRECT ANSWERWER-b: 3 feet
Refer: IMC Code 804.3.5.6
For duct wrap, the installed thickness of duct insulation used to determine R-value (Thermal
Resistance) shall be assumed to be ______ of nominal thickness:
a: 25%
b: 40%
c: 75%
d: 50% - CORRECT ANSWERWER-c: 75%
Refer: IMC Code 604.7.2
Mechanical ventilation shall be provided at a rate of not less than _____ cfm per square foot of floor
area over the storage area:
a: 2
b: 1.5
c: 2.5
, d: 1 - CORRECT ANSWERWER-d: 1
Refer: IMC Code 502.8.1.1.2
Cleanouts serving horizontal sections of grease ducts shall be located not more than _____ from
changes in direction that are greater than 45 degrees:
a: 8 feet
b: 12 feet
c: 6 feet
d: 10 feet - CORRECT ANSWERWER-d: 10 feet
Refer: IMC Code 506.3.9.2
The cross-sectional area of a flue serving a solid-fuel-burning appliance shall be not greater than
______ times the cross-sectional area of the appliance flue collar or flue outlet:
a: 2
b: 5
c: 4
d: 3 - CORRECT ANSWERWER-d: 3
Refer: IMC Code 801.7
Low-pressure boilers operate at pressures less than or equal to ______ for steam:
a: 15 psi
b: 10 psi
c: 20 psi
d: 5 psi - CORRECT ANSWERWER-a: 15 psi
Refer: IMC Code - Definitions
The fire damper rating (in hours) for penetration less than 3 hour fire resistance rated assemblies
shall be ________ :
a: 3 hours
b: 1.5 hours
c: 4.5 hours
AND CORRECT ANSWERS TOP RATED VERSION FOR LREADY A
GRADED WITH EXPERT FEEDBACK|BRAND EW!|REVISED
Positive mechanical ventilation which provides a minimum of ______ complete air changes per hour
shall be installed in limited spraying spaces
a: six
b: four
c: five
d: eight - CORRECT ANSWERWER-a: six
Refer: IMC Code 502.7.2
The use of gypsum boards to form plenums shall be limited to systems where the air temperatures
do not exceed ______ :
a: 100°F
b: 125°F
c: 200°F
d: 150°F - CORRECT ANSWERWER-b: 125°F
Refer: IMC Code 602.2
The operating temperature of fire damper actuating device shall be approximately ______ above the
normal temperature within the duct system:
a: 100°F
b: 25°F
c: 75°F
d: 50°F - CORRECT ANSWERWER-d: 50°F
Refer: IMC Code 607.3.3.1.1
Mechanical draft system Vents shall terminate horizontally at least _____ above any forced air inlet
located within 10 feet:
a: 5 feet
,b: 2 feet
c: 3 feet
d: 4 feet - CORRECT ANSWERWER-c: 3 feet
Refer: IMC Code 804.3.4.2
Manual dampers shall be installed in connectors except in chimney connectors serving solid fuel-
burning appliances:
True
False - CORRECT ANSWERWER-False
Refer: IMC Code 803.5
The vent vertical termination for mechanical draft system shall be located at least horizontally _____
from any portion of the roof structure:
a: 2 feet
b: 3 feet
c: 5 feet
d: 4 feet - CORRECT ANSWERWER-b: 3 feet
Refer: IMC Code 804.3.5.6
For duct wrap, the installed thickness of duct insulation used to determine R-value (Thermal
Resistance) shall be assumed to be ______ of nominal thickness:
a: 25%
b: 40%
c: 75%
d: 50% - CORRECT ANSWERWER-c: 75%
Refer: IMC Code 604.7.2
Mechanical ventilation shall be provided at a rate of not less than _____ cfm per square foot of floor
area over the storage area:
a: 2
b: 1.5
c: 2.5
, d: 1 - CORRECT ANSWERWER-d: 1
Refer: IMC Code 502.8.1.1.2
Cleanouts serving horizontal sections of grease ducts shall be located not more than _____ from
changes in direction that are greater than 45 degrees:
a: 8 feet
b: 12 feet
c: 6 feet
d: 10 feet - CORRECT ANSWERWER-d: 10 feet
Refer: IMC Code 506.3.9.2
The cross-sectional area of a flue serving a solid-fuel-burning appliance shall be not greater than
______ times the cross-sectional area of the appliance flue collar or flue outlet:
a: 2
b: 5
c: 4
d: 3 - CORRECT ANSWERWER-d: 3
Refer: IMC Code 801.7
Low-pressure boilers operate at pressures less than or equal to ______ for steam:
a: 15 psi
b: 10 psi
c: 20 psi
d: 5 psi - CORRECT ANSWERWER-a: 15 psi
Refer: IMC Code - Definitions
The fire damper rating (in hours) for penetration less than 3 hour fire resistance rated assemblies
shall be ________ :
a: 3 hours
b: 1.5 hours
c: 4.5 hours
