10 free, exam-style ICC Building Inspector Certification (ICC) practice questions with answers and explanations. No signup required. Work through them below, then take the full free ICC practice test to study every exam domain.
An inspector is reviewing a garage-to-dwelling separation. The garage wall has 1/2-inch gypsum board on the garage side, and the door between the garage and the hallway is a solid wood door without a self-closing device. What violation exists?
Correct answer: B - The door must be self-closing
A restaurant with tables and chairs has 3,000 sq ft of net dining area. Using the occupant load factor of 15 net sq ft per person, the calculated occupant load is:
Correct answer: C - 200 persons
A 2×6 bearing stud has a 2-inch diameter hole drilled through it at mid-height. The actual depth of a 2×6 is 5.5 inches. Is this bore compliant?
Correct answer: A - Yes, 2 inches is within the 40% limit of 2.2 inches
A contractor has drilled a 4-inch hole through a 2×12 floor joist (actual depth 11.25 inches) located at mid-span. The hole is centered on the joist depth. Is this compliant?
Correct answer: B - No, the hole exceeds the 1/3 depth limit of 3.75 inches
An inspector examines a 2-hour rated fire barrier and finds an unprotected pipe penetration. This is:
Correct answer: B - A violation - all penetrations in fire barriers must be protected with listed firestop systems
A rectangular room measures 80 feet by 60 feet. The diagonal distance is 100 feet. Two exits are required. The minimum separation between the exits in a non-sprinklered building is:
Correct answer: C - 50 feet
An inspector measures a stairway and finds riser heights of 7-1/2 inches, 7-3/4 inches, 7-1/2 inches, and 8 inches. The variation between the largest and smallest riser is:
Correct answer: C - 1/2 inch - NOT compliant
An inspector finds that a contractor has used expanding foam sealant (non-listed) to fill a penetration through a 2-hour fire-rated wall. This is:
Correct answer: B - Not compliant - penetrations must be protected with a listed through-penetration firestop system
An inspector examines a corridor in a non-sprinklered commercial building and finds that the wall covering material has a flame spread index of 40. Per Table 803.13, corridors require Class A (0-25). This material is:
Correct answer: B - Not compliant - the material exceeds the Class A limit of 25
An inspector measures a bedroom EERO and finds: 24 inches height, 24 inches width, and the sill is 46 inches above the floor. The net clear area is 576 sq in (4.0 sq ft). How many violations exist?
Correct answer: B - Two - the sill height exceeds 44 inches AND the area is less than 5.7 sq ft
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