Master Mason Licensing Exam Questions
and Correct Answers Verified Answers) Plus
Rationales 2026 Q&A | instant Download pdf
1. What is the primary purpose of mortar in masonry construction?
A. Increase compressive strength of blocks
B. Bond masonry units together and distribute loads
C. Prevent water from entering the structure entirely
D. Replace reinforcement steel
Answer: B
Rationale: Mortar primarily bonds masonry units and helps distribute
loads evenly across the structure.
2. Which type of brick is most commonly used for structural load-
bearing walls?
A. Face brick
B. Fire brick
C. Engineering brick
D. Hollow brick
,Answer: C
Rationale: Engineering bricks are dense, strong, and suitable for load-
bearing applications.
3. What is the standard ratio of cement to sand in typical masonry
mortar (Type N)?
A. 1:1
B. 1:2
C. 1:3
D. 1:6
Answer: D
Rationale: Type N mortar commonly uses a 1:6 cement-to-sand ratio for
general use.
4. What tool is used to spread mortar on masonry units?
A. Trowel
B. Chisel
C. Float
D. Joiner
,Answer: A
Rationale: A mason’s trowel is used to spread and shape mortar.
5. What is the term for the vertical joint between two bricks?
A. Bed joint
B. Collar joint
C. Head joint
D. Mortar joint
Answer: C
Rationale: Head joints are vertical mortar joints between bricks.
6. What is efflorescence in masonry?
A. Structural cracking
B. Salt deposits on the surface
C. Mortar shrinkage
D. Brick discoloration from heat
Answer: B
Rationale: Efflorescence is caused by salt deposits migrating to the
surface.
, 7. Which bond pattern is the strongest for structural walls?
A. Running bond
B. Stack bond
C. Flemish bond
D. Soldier course
Answer: C
Rationale: Flemish bond alternates headers and stretchers, improving
strength.
8. What is the main purpose of weep holes in masonry walls?
A. Decorative design
B. Ventilation only
C. Drain moisture from cavity walls
D. Reinforcement placement
Answer: C
Rationale: Weep holes allow moisture to escape from cavity walls.
9. What causes mortar to crack during curing?
and Correct Answers Verified Answers) Plus
Rationales 2026 Q&A | instant Download pdf
1. What is the primary purpose of mortar in masonry construction?
A. Increase compressive strength of blocks
B. Bond masonry units together and distribute loads
C. Prevent water from entering the structure entirely
D. Replace reinforcement steel
Answer: B
Rationale: Mortar primarily bonds masonry units and helps distribute
loads evenly across the structure.
2. Which type of brick is most commonly used for structural load-
bearing walls?
A. Face brick
B. Fire brick
C. Engineering brick
D. Hollow brick
,Answer: C
Rationale: Engineering bricks are dense, strong, and suitable for load-
bearing applications.
3. What is the standard ratio of cement to sand in typical masonry
mortar (Type N)?
A. 1:1
B. 1:2
C. 1:3
D. 1:6
Answer: D
Rationale: Type N mortar commonly uses a 1:6 cement-to-sand ratio for
general use.
4. What tool is used to spread mortar on masonry units?
A. Trowel
B. Chisel
C. Float
D. Joiner
,Answer: A
Rationale: A mason’s trowel is used to spread and shape mortar.
5. What is the term for the vertical joint between two bricks?
A. Bed joint
B. Collar joint
C. Head joint
D. Mortar joint
Answer: C
Rationale: Head joints are vertical mortar joints between bricks.
6. What is efflorescence in masonry?
A. Structural cracking
B. Salt deposits on the surface
C. Mortar shrinkage
D. Brick discoloration from heat
Answer: B
Rationale: Efflorescence is caused by salt deposits migrating to the
surface.
, 7. Which bond pattern is the strongest for structural walls?
A. Running bond
B. Stack bond
C. Flemish bond
D. Soldier course
Answer: C
Rationale: Flemish bond alternates headers and stretchers, improving
strength.
8. What is the main purpose of weep holes in masonry walls?
A. Decorative design
B. Ventilation only
C. Drain moisture from cavity walls
D. Reinforcement placement
Answer: C
Rationale: Weep holes allow moisture to escape from cavity walls.
9. What causes mortar to crack during curing?
