RESIDENTIAL BUILDING
CONTRACTOR (C) - TIMED EXAM
QUESTIONS AND COMPLETE
SOLUTIONS GRADED A+
Your Exam Plug
,Footings on or adjacent to slope surfaces shall be founded in material with an embedment and
setback from the slope surface sufficient to provide vertical and lateral support for the footing
without detrimental settlement if the slope is steeper than one unit vertical in one unit
horizontal, the required setback shall be measured from an imaginary plane ______ degrees to
the horizontal, projected upward from the toe of the slope. - Answer: C. 45
R403.1.7.2 Footing setback from descending slope surfaces.
Type II handrails with a perimeter greater than _______ inches shall provide a graspable finger
recess area on both sides of the profile. - Answer: C. 6 1/4
R311.7.8.3 Grip-size. 2
The minimum clear width of the stairway at and below the handrail height, including treads and
landings, shall not be less than ______ inches where a handrail is installed on one side and
__________ inches where handrails are provided on both sides. Exceptions ignored. - Answer:
C. 31.5, 27
R311.7.1Width.
All emergency escape and rescue openings shall have a minimum net clear opening of
_____________ square feet. Exceptions ignored. - Answer: C. 5.7
R310.2.1 Minimum opening area
Freestanding accessory structures with an area of _______ square feet or less of other than
light-frame construction, and an eave height of 10 feet or less will not be required to be
protected from frost. - Answer: C. 400
R403.1.4.1 Frost protection. Exception 2.
, A composite of wood strand elements with wood fibers primarily oriented along the length of
the member, where the least dimension of the wood strand elements is 0.10 inch (2.54 mm) or
less and their average lengths are a minimum of 75 times and less than 150 times the least
dimension of the wood strand elements. - Answer: C. Oriented strand lumber (OSL)
SECTION R202 DEFINITIONS, Oriented strand lumber (OSL)
Air exhaust and intake openings that terminate outdoors shall be protected with corrosion
resistant screens, louvers or grilles having a minimum opening size of ______ inch and a
maximum opening size of ______ inch in any dimension. - Answer: C. 1/4, 1/2
R303.6 Outside opening protection.
Bathtub and shower floors and walls above bath tubs with installed shower heads and in
shower compartments shall be finished with
_______________________________________________________________ - Answer: C. a
nonabsorbent surface
R307.2 Bathtub and shower spaces.
A stairway riser shall be measured vertically between leading edges of the adjacent treads with
the greatest riser height within any flight of stairs not to exceed the smallest by more than
_______________ inch. - Answer: C. .375
R311.7.5.1 Risers.
Spiral stairways shall have all treads identical, and the rise shall be no more than ___________
inches - Answer: C. 9 1/2
CONTRACTOR (C) - TIMED EXAM
QUESTIONS AND COMPLETE
SOLUTIONS GRADED A+
Your Exam Plug
,Footings on or adjacent to slope surfaces shall be founded in material with an embedment and
setback from the slope surface sufficient to provide vertical and lateral support for the footing
without detrimental settlement if the slope is steeper than one unit vertical in one unit
horizontal, the required setback shall be measured from an imaginary plane ______ degrees to
the horizontal, projected upward from the toe of the slope. - Answer: C. 45
R403.1.7.2 Footing setback from descending slope surfaces.
Type II handrails with a perimeter greater than _______ inches shall provide a graspable finger
recess area on both sides of the profile. - Answer: C. 6 1/4
R311.7.8.3 Grip-size. 2
The minimum clear width of the stairway at and below the handrail height, including treads and
landings, shall not be less than ______ inches where a handrail is installed on one side and
__________ inches where handrails are provided on both sides. Exceptions ignored. - Answer:
C. 31.5, 27
R311.7.1Width.
All emergency escape and rescue openings shall have a minimum net clear opening of
_____________ square feet. Exceptions ignored. - Answer: C. 5.7
R310.2.1 Minimum opening area
Freestanding accessory structures with an area of _______ square feet or less of other than
light-frame construction, and an eave height of 10 feet or less will not be required to be
protected from frost. - Answer: C. 400
R403.1.4.1 Frost protection. Exception 2.
, A composite of wood strand elements with wood fibers primarily oriented along the length of
the member, where the least dimension of the wood strand elements is 0.10 inch (2.54 mm) or
less and their average lengths are a minimum of 75 times and less than 150 times the least
dimension of the wood strand elements. - Answer: C. Oriented strand lumber (OSL)
SECTION R202 DEFINITIONS, Oriented strand lumber (OSL)
Air exhaust and intake openings that terminate outdoors shall be protected with corrosion
resistant screens, louvers or grilles having a minimum opening size of ______ inch and a
maximum opening size of ______ inch in any dimension. - Answer: C. 1/4, 1/2
R303.6 Outside opening protection.
Bathtub and shower floors and walls above bath tubs with installed shower heads and in
shower compartments shall be finished with
_______________________________________________________________ - Answer: C. a
nonabsorbent surface
R307.2 Bathtub and shower spaces.
A stairway riser shall be measured vertically between leading edges of the adjacent treads with
the greatest riser height within any flight of stairs not to exceed the smallest by more than
_______________ inch. - Answer: C. .375
R311.7.5.1 Risers.
Spiral stairways shall have all treads identical, and the rise shall be no more than ___________
inches - Answer: C. 9 1/2
