Master Carpenter Licensing Examination
Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. Which factor most directly affects the allowable span of a floor
joist?
A. Species of wood
B. Moisture content
C. Joist spacing
D. All of the above
Answer: D
All listed factors influence strength and deflection, which
determine allowable span.
2. A beam designed to carry loads from joists on one side only is
known as a:
A. Girder
B. Header
C. Ledger
D. Cantilever
Answer: C
A ledger supports framing members attached on one side, typically
against a wall.
,3. What is the primary purpose of cross-bridging between floor
joists?
A. Increase span length
B. Reduce vibration and twisting
C. Provide fire stopping
D. Allow for plumbing runs
Answer: B
Cross-bridging stabilizes joists and distributes loads more evenly.
4. Which fastener is most appropriate for structural framing
connections?
A. Finish nails
B. Roofing nails
C. Common nails
D. Brad nails
Answer: C
Common nails provide the shear strength needed for structural
framing.
5. When framing an exterior wall, which component resists lateral
wind loads?
A. Studs alone
B. Insulation
C. Sheathing
D. Drywall
Answer: C
Sheathing provides racking resistance against lateral forces.
6. What is the standard rise for a residential stair riser?
A. 6 inches
, B. 7 inches
C. 7 ¾ inches maximum
D. 8 ½ inches
Answer: C
Building codes generally limit riser height to 7 ¾ inches maximum.
7. Which roof type exerts the greatest outward thrust on exterior
walls?
A. Hip roof
B. Shed roof
C. Gambrel roof
D. Gable roof without collar ties
Answer: D
Gable roofs without proper ties can push walls outward.
8. What is the primary function of flashing?
A. Improve appearance
B. Allow expansion
C. Prevent water intrusion
D. Support framing
Answer: C
Flashing directs water away from vulnerable joints.
9. Which material is best suited for sill plates in contact with
concrete?
A. Untreated pine
B. MDF
C. Pressure-treated lumber
D. Hardwood
, Answer: C
Pressure-treated lumber resists moisture and decay.
10. A mortise-and-tenon joint is best described as:
A. A mechanical fastener joint
B. A traditional wood joinery joint
C. A metal connector joint
D. A temporary joint
Answer: B
Mortise-and-tenon is a classic structural wood joint.
11. What is the minimum recommended overlap for splicing top
plates?
A. 12 inches
B. 24 inches
C. 48 inches
D. Full stud bay
Answer: D
Full stud-bay overlap ensures load transfer.
12. Which saw is most accurate for cutting dados?
A. Circular saw
B. Jigsaw
C. Table saw with dado set
D. Hand saw
Answer: C
A dado set allows precise, uniform-width cuts.
13. What is the main purpose of a vapor barrier in wall
assemblies?
A. Increase R-value
Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. Which factor most directly affects the allowable span of a floor
joist?
A. Species of wood
B. Moisture content
C. Joist spacing
D. All of the above
Answer: D
All listed factors influence strength and deflection, which
determine allowable span.
2. A beam designed to carry loads from joists on one side only is
known as a:
A. Girder
B. Header
C. Ledger
D. Cantilever
Answer: C
A ledger supports framing members attached on one side, typically
against a wall.
,3. What is the primary purpose of cross-bridging between floor
joists?
A. Increase span length
B. Reduce vibration and twisting
C. Provide fire stopping
D. Allow for plumbing runs
Answer: B
Cross-bridging stabilizes joists and distributes loads more evenly.
4. Which fastener is most appropriate for structural framing
connections?
A. Finish nails
B. Roofing nails
C. Common nails
D. Brad nails
Answer: C
Common nails provide the shear strength needed for structural
framing.
5. When framing an exterior wall, which component resists lateral
wind loads?
A. Studs alone
B. Insulation
C. Sheathing
D. Drywall
Answer: C
Sheathing provides racking resistance against lateral forces.
6. What is the standard rise for a residential stair riser?
A. 6 inches
, B. 7 inches
C. 7 ¾ inches maximum
D. 8 ½ inches
Answer: C
Building codes generally limit riser height to 7 ¾ inches maximum.
7. Which roof type exerts the greatest outward thrust on exterior
walls?
A. Hip roof
B. Shed roof
C. Gambrel roof
D. Gable roof without collar ties
Answer: D
Gable roofs without proper ties can push walls outward.
8. What is the primary function of flashing?
A. Improve appearance
B. Allow expansion
C. Prevent water intrusion
D. Support framing
Answer: C
Flashing directs water away from vulnerable joints.
9. Which material is best suited for sill plates in contact with
concrete?
A. Untreated pine
B. MDF
C. Pressure-treated lumber
D. Hardwood
, Answer: C
Pressure-treated lumber resists moisture and decay.
10. A mortise-and-tenon joint is best described as:
A. A mechanical fastener joint
B. A traditional wood joinery joint
C. A metal connector joint
D. A temporary joint
Answer: B
Mortise-and-tenon is a classic structural wood joint.
11. What is the minimum recommended overlap for splicing top
plates?
A. 12 inches
B. 24 inches
C. 48 inches
D. Full stud bay
Answer: D
Full stud-bay overlap ensures load transfer.
12. Which saw is most accurate for cutting dados?
A. Circular saw
B. Jigsaw
C. Table saw with dado set
D. Hand saw
Answer: C
A dado set allows precise, uniform-width cuts.
13. What is the main purpose of a vapor barrier in wall
assemblies?
A. Increase R-value
