1|Page
Certified Building Official (CBO) Exam ACTUAL
VERIFIED EXAM COMPLETE QUESTIONS AND
CORRECT ANSWERS LATEST UPDATE.pdf
Electrical service conductors 14 feet over a pool walkway
and within 3 feet of the waters edge is - Answer-
Allowed/Prohibited/ by height or horizontal distance
Attics require access when the height is a minimum of -
Answer-30 inches tall.
IRC R807
IBC 1208.2
During construction that affects the right of way, a
pedestrian walkway that is _____ wide must be provided -
Answer-4 feet
IBC 3306.2 Safeguards during construction
A gas test must be 1.5 times the pressure the line will hold
but not less than 3lbs and hold for _____ minutes -
Answer-a minimum of 10 minutes
IFG 406.4
,2|Page
Accessibility-a 180 degree architectural turn requires
_____clear width - Answer-42 inches across going
forward, 48 inches across the length of the turn, and 42
inches going forward in the ending direction. 48
Access 403.5.1
Residential aluminum grounding conductor minimum size
for 400 amp service. - Answer-1/0
IRC table E3603.4
Residential living room minimum uniformly distributed
design load - Answer-40
IRC table R301.5
Capacity of a 20 gallon grease interceptor - Answer-40
pounds of grease reception
IPC table 1003.3.5.1
The minimum clear egress width of a covered mall is
_____ - Answer-20 feet
IBC 402.8.1.1
,3|Page
Urinals shall not be substituted for more than 67 percent of
the required occupancies in _____ - Answer-assembly and
education.
IPC 424.1 Urinals
Notches on the ends of joist shall not exceed _______ of
the joist depth - Answer-1/4
Notches in the top or bottom may not be more than 1/6
IPC C101 Structural Safety-Joist Notching
The design load for a residential living room - Answer-40
IRC R301.5
The term cross-connection refers to the protection -
Answer-Of the water supply IPC 608
Boilers require a ___ inch clearance from combustibles. -
Answer-24, 30, 36, or manufacturer's installation
instruction.
, 4|Page
A buildings area and height limitations are based on -
Answer-they type of construction and occupancy
classification. IBC 504.1
What is the minimum size of an equipment grounding
conductor that you may have on a pool? - Answer-12
IRC E4205.2
A bedroom window must have a minimum clear opening of
_____ on the first floor. - Answer-5 square feet
IBC 1030.2 Minimum Size Emergency Escape
The maximum flame spread of exposed foam insulation is
_______ - Answer-25
A bedroom window on the second floor must have a
minimum net clear opening of ___ - Answer-5.7 feet (no
less than 20 inches wide)
IBC 1030.2
Crawl space venting with a vapor retarder shall not be less
than ______ - Answer-1 square foot per 1500 square feet
Certified Building Official (CBO) Exam ACTUAL
VERIFIED EXAM COMPLETE QUESTIONS AND
CORRECT ANSWERS LATEST UPDATE.pdf
Electrical service conductors 14 feet over a pool walkway
and within 3 feet of the waters edge is - Answer-
Allowed/Prohibited/ by height or horizontal distance
Attics require access when the height is a minimum of -
Answer-30 inches tall.
IRC R807
IBC 1208.2
During construction that affects the right of way, a
pedestrian walkway that is _____ wide must be provided -
Answer-4 feet
IBC 3306.2 Safeguards during construction
A gas test must be 1.5 times the pressure the line will hold
but not less than 3lbs and hold for _____ minutes -
Answer-a minimum of 10 minutes
IFG 406.4
,2|Page
Accessibility-a 180 degree architectural turn requires
_____clear width - Answer-42 inches across going
forward, 48 inches across the length of the turn, and 42
inches going forward in the ending direction. 48
Access 403.5.1
Residential aluminum grounding conductor minimum size
for 400 amp service. - Answer-1/0
IRC table E3603.4
Residential living room minimum uniformly distributed
design load - Answer-40
IRC table R301.5
Capacity of a 20 gallon grease interceptor - Answer-40
pounds of grease reception
IPC table 1003.3.5.1
The minimum clear egress width of a covered mall is
_____ - Answer-20 feet
IBC 402.8.1.1
,3|Page
Urinals shall not be substituted for more than 67 percent of
the required occupancies in _____ - Answer-assembly and
education.
IPC 424.1 Urinals
Notches on the ends of joist shall not exceed _______ of
the joist depth - Answer-1/4
Notches in the top or bottom may not be more than 1/6
IPC C101 Structural Safety-Joist Notching
The design load for a residential living room - Answer-40
IRC R301.5
The term cross-connection refers to the protection -
Answer-Of the water supply IPC 608
Boilers require a ___ inch clearance from combustibles. -
Answer-24, 30, 36, or manufacturer's installation
instruction.
, 4|Page
A buildings area and height limitations are based on -
Answer-they type of construction and occupancy
classification. IBC 504.1
What is the minimum size of an equipment grounding
conductor that you may have on a pool? - Answer-12
IRC E4205.2
A bedroom window must have a minimum clear opening of
_____ on the first floor. - Answer-5 square feet
IBC 1030.2 Minimum Size Emergency Escape
The maximum flame spread of exposed foam insulation is
_______ - Answer-25
A bedroom window on the second floor must have a
minimum net clear opening of ___ - Answer-5.7 feet (no
less than 20 inches wide)
IBC 1030.2
Crawl space venting with a vapor retarder shall not be less
than ______ - Answer-1 square foot per 1500 square feet
