CPI Building Codes & Regulations 3 — Questions and Answers
Question 1: Under the IRC, what is the minimum width required for a hallway in a residential dwelling?
- 28 inches
- 32 inches
- 36 inches (Correct answer)
- 42 inches
Correct answer: 36 inches
The IRC requires hallways in residential dwellings to be at least 36 inches wide.
Question 2: A ground fault circuit interrupter (GFCI) is required by the NEC in all of the following locations EXCEPT:
- Kitchen countertop receptacles
- Bathrooms
- Unfinished basements
- Living room receptacles 6 feet from a window (Correct answer)
Correct answer: Living room receptacles 6 feet from a window
Living room receptacles away from water sources do not require GFCI protection under the NEC.
Question 3: Which code edition cycle does the ICC typically follow for updating the I-Codes?
- Annual updates
- Every 2 years
- Every 3 years (Correct answer)
- Every 5 years
Correct answer: Every 3 years
The ICC updates the I-Codes on a 3-year cycle.
Question 4: Under the IBC, a building's occupancy classification determines which of the following?
- The number of parking spaces required
- Fire protection, egress, and construction requirements (Correct answer)
- The assessed tax value of the structure
- Which utility companies must service the building
Correct answer: Fire protection, egress, and construction requirements
Occupancy classification drives fire protection requirements, means of egress design, and permitted construction types.
Question 5: What is the minimum required R-value for attic insulation in Climate Zone 5 under the IRC energy provisions?
- R-19
- R-30
- R-38
- R-49 (Correct answer)
Correct answer: R-49
Climate Zone 5 requires a minimum of R-49 insulation in attics per IRC energy code provisions.
Question 6: Which of the following best describes the purpose of a Certificate of Occupancy (CO)?
- It confirms the building was designed by a licensed architect
- It certifies the building complies with applicable codes and is safe for use (Correct answer)
- It establishes the property tax rate for the building
- It authorizes the contractor to begin construction
Correct answer: It certifies the building complies with applicable codes and is safe for use
A Certificate of Occupancy confirms that the building complies with applicable codes and is approved for its intended use.
Question 7: Under the IRC, emergency escape and rescue openings (EEROs) are required in which rooms?
- Every room in the house
- Basements and every sleeping room (Correct answer)
- Only in basement bedrooms
- Kitchens and living rooms on every floor
Correct answer: Basements and every sleeping room
The IRC requires EEROs in basements used for habitation and in every sleeping room to allow occupant escape and rescue access.
CPI Building Codes & Regulations 3
Under the IRC, what is the minimum width required for a hallway in a residential dwelling?