2025 IRC Exam chapter 3
Questions with Complete
Answers
Denning [Date] [Course title]
, Light switch is required at the top and bottom of interior stairs that have at least ____________ risers. -
Correct Answers: 6
R303.7 Interior stairway illumination.
Smoke alarms must be minimum __________ feet from heat registers or paddle fans. - Correct Answers:
3
Exterior stairways shall be provided with an artificial light source located at the _________
___________. - Correct Answers: top landing
R303.8 Exterior stairway illumination.
A top landing is not required where a stairway of not more than ____________ risers is located on the
exterior side of the door, provided that the door does not swing over the stairway. - Correct Answers: 2
R311.3.2 Floor elevations at other exterior doors.
Ceiling height for showers, tubs, and other bathroom and toilet room fixtures shall be minimum
___________. - Correct Answers: 80 inches (6'-8")
R305.1 Minimum height
Showers must be at least ___________ inches in each direction. - Correct Answers: 30
R307.1 Space required.
_____________ inches minimum width of shower door. - Correct Answers: 22
_____________ inches minimum clearance in front of sinks and toilets. - Correct Answers: 21
Questions with Complete
Answers
Denning [Date] [Course title]
, Light switch is required at the top and bottom of interior stairs that have at least ____________ risers. -
Correct Answers: 6
R303.7 Interior stairway illumination.
Smoke alarms must be minimum __________ feet from heat registers or paddle fans. - Correct Answers:
3
Exterior stairways shall be provided with an artificial light source located at the _________
___________. - Correct Answers: top landing
R303.8 Exterior stairway illumination.
A top landing is not required where a stairway of not more than ____________ risers is located on the
exterior side of the door, provided that the door does not swing over the stairway. - Correct Answers: 2
R311.3.2 Floor elevations at other exterior doors.
Ceiling height for showers, tubs, and other bathroom and toilet room fixtures shall be minimum
___________. - Correct Answers: 80 inches (6'-8")
R305.1 Minimum height
Showers must be at least ___________ inches in each direction. - Correct Answers: 30
R307.1 Space required.
_____________ inches minimum width of shower door. - Correct Answers: 22
_____________ inches minimum clearance in front of sinks and toilets. - Correct Answers: 21
