Arkansas AR-DW Drywall
Contractor Practice Exam |
Questions, Verified Answers &
Detailed Rationales | Complete
Contractor License Exam Prep
Study Guide | Updated 2026
1. What is the primary purpose of gypsum board in a
typical interior partition?
A. To provide structural foundation support
B. To provide a finished wall surface and contribute to
fire, sound, and impact performance
C. To replace all wall framing
D. To waterproof the entire building
Correct Answer: To provide a finished wall surface and
contribute to fire, sound, and impact performance
Rationale: Gypsum board provides the finished interior
surface while, when properly specified and installed,
contributing to fire resistance, acoustical performance,
and durability.
2. Which gypsum board is commonly used where
increased moisture resistance is required?
A. Standard regular gypsum board
B. Type X gypsum board
C. Moisture-resistant gypsum board
D. Sound-deadening gypsum board only
Correct Answer: Moisture-resistant gypsum board
Rationale: Moisture-resistant panels are designed for
areas exposed to elevated humidity or intermittent
,moisture. They are not automatically a substitute for a
waterproofing system.
3. What is the primary purpose of Type X gypsum board?
A. To increase thermal insulation only
B. To prevent all water penetration
C. To provide enhanced fire-resistance characteristics
D. To replace cement board in every wet location
Correct Answer: To provide enhanced fire-resistance
characteristics
Rationale: Type X gypsum board contains additives and
is manufactured for use in tested fire-resistance
assemblies.
4. Why should gypsum panels generally be installed
with joints staggered between layers?
A. To reduce the number of screws
B. To improve assembly performance and avoid
continuous weak joints
C. To eliminate the need for joint compound
D. To make panels heavier
Correct Answer: To improve assembly performance and
avoid continuous weak joints
Rationale: Staggering joints helps improve the integrity
of multilayer assemblies and can contribute to fire and
sound performance when the complete system is
properly designed.
5. What is the main function of drywall joint tape?
A. To waterproof the wall
B. To attach studs to the floor
,C. To reinforce the joint between gypsum panels
D. To replace fasteners
Correct Answer: To reinforce the joint between gypsum
panels
Rationale: Joint tape reinforces the joint and helps
prevent cracking when properly embedded in joint
compound.
6. Which tool is commonly used to spread joint
compound over a drywall joint?
A. Framing square
B. Chalk line
C. Taping knife
D. Pipe wrench
Correct Answer: Taping knife
Rationale: Taping knives are designed to apply, embed,
and smooth joint compound over taped joints and
fastener heads.
7. What is a major reason drywall screws should be
driven slightly below the face of the gypsum board?
A. To cut completely through the panel
B. To allow joint compound to cover the fastener without
damaging the paper excessively
C. To eliminate framing
D. To make the screw impossible to remove
Correct Answer: To allow joint compound to cover the
fastener without damaging the paper excessively
Rationale: Proper screw depth creates a shallow dimple
while keeping the paper facing substantially intact.
Overdriving can weaken the panel.
, 8. What happens when a drywall screw is driven too
deeply?
A. The panel becomes stronger
B. The paper facing can be broken, reducing holding
strength
C. The screw automatically becomes fire-rated
D. The joint becomes waterproof
Correct Answer: The paper facing can be broken,
reducing holding strength
Rationale: Breaking the paper can reduce the fastener's
ability to hold the panel securely and can contribute to
finishing problems.
9. What is the purpose of a drywall corner bead?
A. To support floor joists
B. To reinforce and protect an outside corner
C. To replace insulation
D. To seal plumbing penetrations
Correct Answer: To reinforce and protect an outside
corner
Rationale: Corner bead creates a straight, durable
outside corner that can be finished with joint
compound.
10. Which condition is most likely to cause drywall joint
cracking?
A. Properly installed tape
B. Correct framing spacing
C. Excessive movement of the framing or improperly
treated joints
D. Properly conditioned materials
Contractor Practice Exam |
Questions, Verified Answers &
Detailed Rationales | Complete
Contractor License Exam Prep
Study Guide | Updated 2026
1. What is the primary purpose of gypsum board in a
typical interior partition?
A. To provide structural foundation support
B. To provide a finished wall surface and contribute to
fire, sound, and impact performance
C. To replace all wall framing
D. To waterproof the entire building
Correct Answer: To provide a finished wall surface and
contribute to fire, sound, and impact performance
Rationale: Gypsum board provides the finished interior
surface while, when properly specified and installed,
contributing to fire resistance, acoustical performance,
and durability.
2. Which gypsum board is commonly used where
increased moisture resistance is required?
A. Standard regular gypsum board
B. Type X gypsum board
C. Moisture-resistant gypsum board
D. Sound-deadening gypsum board only
Correct Answer: Moisture-resistant gypsum board
Rationale: Moisture-resistant panels are designed for
areas exposed to elevated humidity or intermittent
,moisture. They are not automatically a substitute for a
waterproofing system.
3. What is the primary purpose of Type X gypsum board?
A. To increase thermal insulation only
B. To prevent all water penetration
C. To provide enhanced fire-resistance characteristics
D. To replace cement board in every wet location
Correct Answer: To provide enhanced fire-resistance
characteristics
Rationale: Type X gypsum board contains additives and
is manufactured for use in tested fire-resistance
assemblies.
4. Why should gypsum panels generally be installed
with joints staggered between layers?
A. To reduce the number of screws
B. To improve assembly performance and avoid
continuous weak joints
C. To eliminate the need for joint compound
D. To make panels heavier
Correct Answer: To improve assembly performance and
avoid continuous weak joints
Rationale: Staggering joints helps improve the integrity
of multilayer assemblies and can contribute to fire and
sound performance when the complete system is
properly designed.
5. What is the main function of drywall joint tape?
A. To waterproof the wall
B. To attach studs to the floor
,C. To reinforce the joint between gypsum panels
D. To replace fasteners
Correct Answer: To reinforce the joint between gypsum
panels
Rationale: Joint tape reinforces the joint and helps
prevent cracking when properly embedded in joint
compound.
6. Which tool is commonly used to spread joint
compound over a drywall joint?
A. Framing square
B. Chalk line
C. Taping knife
D. Pipe wrench
Correct Answer: Taping knife
Rationale: Taping knives are designed to apply, embed,
and smooth joint compound over taped joints and
fastener heads.
7. What is a major reason drywall screws should be
driven slightly below the face of the gypsum board?
A. To cut completely through the panel
B. To allow joint compound to cover the fastener without
damaging the paper excessively
C. To eliminate framing
D. To make the screw impossible to remove
Correct Answer: To allow joint compound to cover the
fastener without damaging the paper excessively
Rationale: Proper screw depth creates a shallow dimple
while keeping the paper facing substantially intact.
Overdriving can weaken the panel.
, 8. What happens when a drywall screw is driven too
deeply?
A. The panel becomes stronger
B. The paper facing can be broken, reducing holding
strength
C. The screw automatically becomes fire-rated
D. The joint becomes waterproof
Correct Answer: The paper facing can be broken,
reducing holding strength
Rationale: Breaking the paper can reduce the fastener's
ability to hold the panel securely and can contribute to
finishing problems.
9. What is the purpose of a drywall corner bead?
A. To support floor joists
B. To reinforce and protect an outside corner
C. To replace insulation
D. To seal plumbing penetrations
Correct Answer: To reinforce and protect an outside
corner
Rationale: Corner bead creates a straight, durable
outside corner that can be finished with joint
compound.
10. Which condition is most likely to cause drywall joint
cracking?
A. Properly installed tape
B. Correct framing spacing
C. Excessive movement of the framing or improperly
treated joints
D. Properly conditioned materials
