ICC Residential Plans Examiner (R3) Practice Exam
Questions And Correct Answers (Verified Study Guide) |
Latest Update 2026/2027 | Graded A+ | 100% Assured
Pass.
1. When reviewing a residential plan, which of the following is the
primary purpose of a site plan?
A. To indicate the interior finishes of the building
B. To show the location of the building on the lot and setbacks
C. To provide electrical wiring diagrams
D. To detail plumbing fixture schedules
B. To show the location of the building on the lot and setbacks
Rationale: The site plan is intended to show the placement of the
building relative to property lines, easements, and required setbacks. It
does not typically include interior details such as finishes, electrical
layouts, or plumbing fixture schedules.
2. According to the IRC, what is the minimum ceiling height required
in habitable spaces?
, A. 6 feet 8 inches
B. 7 feet
C. 7 feet 6 inches
D. 8 feet
B. 7 feet
Rationale: The International Residential Code (IRC) requires a minimum
ceiling height of 7 feet in habitable rooms, hallways, bathrooms, and
laundry areas. Certain exceptions exist for beams or sloped ceilings, but
the standard minimum is 7 feet.
4. When examining a floor framing plan, the reviewer should
confirm:
A. The type and spacing of joists
B. Interior wall finishes
C. Door hardware specifications
D. Kitchen appliance layouts
A. The type and spacing of joists
Rationale: Floor framing plans are reviewed to ensure structural
integrity, including correct joist sizing, type, and spacing. Interior
finishes and appliances are not part of structural review.
, 5. In stairway design for a residential dwelling, what is the maximum
riser height allowed by IRC?
A. 7 inches
B. 7 3/4 inches
C. 8 inches
D. 8 1/4 inches
B. 7 3/4 inches
Rationale: IRC Section R311.7.5.1 limits the maximum riser height in
residential stairs to 7 3/4 inches to ensure safe and uniform stairways.
3. Which of the following would indicate non-compliance in the
foundation plan?
A. Footing width dimension less than code minimum
B. Reinforcement bar placement as per code
C. Slab thickness consistent with code
D. Footings shown continuous under load-bearing walls
, A. Footing width dimension less than code minimum Rationale:
Foundation plans must meet code requirements for dimensions
and reinforcement. A footing narrower than the code minimum
would not support the intended loads, indicating non-
compliance.
Questions And Correct Answers (Verified Study Guide) |
Latest Update 2026/2027 | Graded A+ | 100% Assured
Pass.
1. When reviewing a residential plan, which of the following is the
primary purpose of a site plan?
A. To indicate the interior finishes of the building
B. To show the location of the building on the lot and setbacks
C. To provide electrical wiring diagrams
D. To detail plumbing fixture schedules
B. To show the location of the building on the lot and setbacks
Rationale: The site plan is intended to show the placement of the
building relative to property lines, easements, and required setbacks. It
does not typically include interior details such as finishes, electrical
layouts, or plumbing fixture schedules.
2. According to the IRC, what is the minimum ceiling height required
in habitable spaces?
, A. 6 feet 8 inches
B. 7 feet
C. 7 feet 6 inches
D. 8 feet
B. 7 feet
Rationale: The International Residential Code (IRC) requires a minimum
ceiling height of 7 feet in habitable rooms, hallways, bathrooms, and
laundry areas. Certain exceptions exist for beams or sloped ceilings, but
the standard minimum is 7 feet.
4. When examining a floor framing plan, the reviewer should
confirm:
A. The type and spacing of joists
B. Interior wall finishes
C. Door hardware specifications
D. Kitchen appliance layouts
A. The type and spacing of joists
Rationale: Floor framing plans are reviewed to ensure structural
integrity, including correct joist sizing, type, and spacing. Interior
finishes and appliances are not part of structural review.
, 5. In stairway design for a residential dwelling, what is the maximum
riser height allowed by IRC?
A. 7 inches
B. 7 3/4 inches
C. 8 inches
D. 8 1/4 inches
B. 7 3/4 inches
Rationale: IRC Section R311.7.5.1 limits the maximum riser height in
residential stairs to 7 3/4 inches to ensure safe and uniform stairways.
3. Which of the following would indicate non-compliance in the
foundation plan?
A. Footing width dimension less than code minimum
B. Reinforcement bar placement as per code
C. Slab thickness consistent with code
D. Footings shown continuous under load-bearing walls
, A. Footing width dimension less than code minimum Rationale:
Foundation plans must meet code requirements for dimensions
and reinforcement. A footing narrower than the code minimum
would not support the intended loads, indicating non-
compliance.
