AZ ROC TRADE EXAM B-3 LICENSE UPDATED
EXAM QUESTIONS AND CORRECT ANSWERS
Arizona B-3 General Residential Remodeling & Repair
Original Practice Exam
Questions 1–25
Question 1
When laying out a wall, what is the primary purpose of the
bottom plate?
A. Support roof sheathing
B. Anchor the wall to the floor and provide a base for studs
C. Prevent moisture from entering the attic
D. Support drywall
Correct Answer: B
Explanation:
The bottom (sole) plate is fastened to the floor system or slab and
serves as the base to which wall studs are attached. It transfers
loads from the wall to the structure below.
Question 2
Why should pressure-treated lumber be used where wood
contacts concrete?
,A. It is stronger than regular lumber.
B. It resists decay and insect damage caused by moisture
exposure.
C. It costs less.
D. It weighs less.
Correct Answer: B
Explanation:
Concrete can retain moisture. Pressure-treated lumber contains
preservatives that protect against rot and termite damage when in
contact with damp materials.
Question 3
A wall is measured at 12 feet long. Studs are installed 16 inches
on center. Approximately how many studs are needed before
adding corner and opening framing?
A. 6
B. 8
C. 10
D. 12
Correct Answer: C
Explanation:
144 inches ÷ 16 = 9 spaces.
, Nine spaces require approximately ten studs (one more stud than
the number of spaces).
Question 4
Which framing member spans directly above a door opening?
A. Cripple stud
B. Header
C. Sole plate
D. King stud
Correct Answer: B
Explanation:
A header transfers loads around the opening to the adjacent
framing members.
Question 5
What is the purpose of a king stud?
A. Support drywall
B. Support the header and full-height wall framing
C. Hold insulation
D. Support floor joists
Correct Answer: B
EXAM QUESTIONS AND CORRECT ANSWERS
Arizona B-3 General Residential Remodeling & Repair
Original Practice Exam
Questions 1–25
Question 1
When laying out a wall, what is the primary purpose of the
bottom plate?
A. Support roof sheathing
B. Anchor the wall to the floor and provide a base for studs
C. Prevent moisture from entering the attic
D. Support drywall
Correct Answer: B
Explanation:
The bottom (sole) plate is fastened to the floor system or slab and
serves as the base to which wall studs are attached. It transfers
loads from the wall to the structure below.
Question 2
Why should pressure-treated lumber be used where wood
contacts concrete?
,A. It is stronger than regular lumber.
B. It resists decay and insect damage caused by moisture
exposure.
C. It costs less.
D. It weighs less.
Correct Answer: B
Explanation:
Concrete can retain moisture. Pressure-treated lumber contains
preservatives that protect against rot and termite damage when in
contact with damp materials.
Question 3
A wall is measured at 12 feet long. Studs are installed 16 inches
on center. Approximately how many studs are needed before
adding corner and opening framing?
A. 6
B. 8
C. 10
D. 12
Correct Answer: C
Explanation:
144 inches ÷ 16 = 9 spaces.
, Nine spaces require approximately ten studs (one more stud than
the number of spaces).
Question 4
Which framing member spans directly above a door opening?
A. Cripple stud
B. Header
C. Sole plate
D. King stud
Correct Answer: B
Explanation:
A header transfers loads around the opening to the adjacent
framing members.
Question 5
What is the purpose of a king stud?
A. Support drywall
B. Support the header and full-height wall framing
C. Hold insulation
D. Support floor joists
Correct Answer: B
