1|Page
Louisiana (New Orleans) Second Class Stationary
Air Conditioning - 640-LA Contractor Exam 2026
According to the Code, the door or access opening into an equipment
room containing a furnace shall not be less than how many inches in
width?
A. 24
B. 30
C. 32
D. 36 - ANSWER -D
Florida Building Code Mechanical 306.2
Which of the following shall be equipped with expansion tanks?
A. Dual Phase solar energy systems
B. Liquid single phase solar energy systems
C. Carbon based energy systems
D. Fossil Fuel energy systems - ANSWER -B
Florida Building Code Mechanical 1402.5.4
Factory-made vents listed by a nationally recognized testing agency for
venting listed or approved appliances equipped to burn oil are?
A. Type BW Vents
B. Type L Vents
pg. 1
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C. Single-Metal wall vents
D. Type B Vents - ANSWER -B
Florida Building Code Mechanical Table 802.2
Holes bored for pipes shall not be within 2" of the top or bottom of the
joist and the diameter of any such hole shall not exceed what of the
depth of the joist?
A. 1/4
B. 1/2
C. 1/3
D. 3/8 - ANSWER -C
Florida Building Code Mechanical 302.2.1
Fire dampers are not required when sub-ducts are at least how many
feet long?
A. 22
B. 1.83
C. 2
D. 10 - ANSWER -B
Florida Building Code Mechanical 607.5.5
According to the Mechanical Code, the design temperature of flexible
air connectors shall not be less than how many degrees?
pg. 2
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A. 150
B. 175
C. 200
D. 250 - ANSWER -D
Florida Building Code Mechanical 603.6.3
Which of the following shall be installed on all modular boilers?
A. Shut-off valve
B. Oil temperature control
C. Wind box pressure gauge
D. Low gas pressure control - ANSWER -A
Florida Building Code Mechanical 1005.1
Additional ventilation air shall be supplied to machinery rooms to
prevent space temperatures exceeding how many degrees above
ambient temperature?
A. 12
B. 14
C. 16
D. 18 - ANSWER -D
Florida Building Code Mechanical 1105.6.3
The flash point of heat transfer liquids shall be less than?
pg. 3
, 4|Page
A. 30 degrees above design
B. 40 degrees above design
C. 50 degrees below design
D. 50 degrees above design - ANSWER -D
Florida Building Code Mechanical 1403.1
When combining spaces on the same story, each opening shall have a
net free area of ____ square inch(es) per 1,000 Btu/hr of the total input
rating of all appliances in the space.
A. 1
B. 2
C. 3
D. 4 - ANSWER -A
Florida Building Code Fuel Gas
Tests requiring a pressure of 10psig or less shall utilize a testing gauge
having increments of ____psi or less?
A. 0.10
B. 1.0
C. 10.0
D. 0.01 - ANSWER -A
Florida Building Code Fuel Gas
pg. 4
Louisiana (New Orleans) Second Class Stationary
Air Conditioning - 640-LA Contractor Exam 2026
According to the Code, the door or access opening into an equipment
room containing a furnace shall not be less than how many inches in
width?
A. 24
B. 30
C. 32
D. 36 - ANSWER -D
Florida Building Code Mechanical 306.2
Which of the following shall be equipped with expansion tanks?
A. Dual Phase solar energy systems
B. Liquid single phase solar energy systems
C. Carbon based energy systems
D. Fossil Fuel energy systems - ANSWER -B
Florida Building Code Mechanical 1402.5.4
Factory-made vents listed by a nationally recognized testing agency for
venting listed or approved appliances equipped to burn oil are?
A. Type BW Vents
B. Type L Vents
pg. 1
,2|Page
C. Single-Metal wall vents
D. Type B Vents - ANSWER -B
Florida Building Code Mechanical Table 802.2
Holes bored for pipes shall not be within 2" of the top or bottom of the
joist and the diameter of any such hole shall not exceed what of the
depth of the joist?
A. 1/4
B. 1/2
C. 1/3
D. 3/8 - ANSWER -C
Florida Building Code Mechanical 302.2.1
Fire dampers are not required when sub-ducts are at least how many
feet long?
A. 22
B. 1.83
C. 2
D. 10 - ANSWER -B
Florida Building Code Mechanical 607.5.5
According to the Mechanical Code, the design temperature of flexible
air connectors shall not be less than how many degrees?
pg. 2
,3|Page
A. 150
B. 175
C. 200
D. 250 - ANSWER -D
Florida Building Code Mechanical 603.6.3
Which of the following shall be installed on all modular boilers?
A. Shut-off valve
B. Oil temperature control
C. Wind box pressure gauge
D. Low gas pressure control - ANSWER -A
Florida Building Code Mechanical 1005.1
Additional ventilation air shall be supplied to machinery rooms to
prevent space temperatures exceeding how many degrees above
ambient temperature?
A. 12
B. 14
C. 16
D. 18 - ANSWER -D
Florida Building Code Mechanical 1105.6.3
The flash point of heat transfer liquids shall be less than?
pg. 3
, 4|Page
A. 30 degrees above design
B. 40 degrees above design
C. 50 degrees below design
D. 50 degrees above design - ANSWER -D
Florida Building Code Mechanical 1403.1
When combining spaces on the same story, each opening shall have a
net free area of ____ square inch(es) per 1,000 Btu/hr of the total input
rating of all appliances in the space.
A. 1
B. 2
C. 3
D. 4 - ANSWER -A
Florida Building Code Fuel Gas
Tests requiring a pressure of 10psig or less shall utilize a testing gauge
having increments of ____psi or less?
A. 0.10
B. 1.0
C. 10.0
D. 0.01 - ANSWER -A
Florida Building Code Fuel Gas
pg. 4
