CT Masonry Contractor Exam
Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A| Instant Download Pdf
1. Which type of mortar is best for general-purpose masonry work?
A. Type M
B. Type N
C. Type S
D. Type O
Answer: Type N
Rationale: Type N mortar has medium strength and is suitable for
general-purpose above-grade walls exposed to moderate weather.
2. What is the minimum thickness of a standard brick wall?
A. 4 inches
B. 6 inches
C. 8 inches
D. 12 inches
Answer: 8 inches
Rationale: A standard single wythe brick wall is at least 8 inches thick to
provide adequate structural stability.
3. Which of the following tools is used to ensure bricks are level?
A. Chisel
B. Hammer
C. Spirit level
D. Trowel
,Answer: Spirit level
Rationale: A spirit level is used to check that bricks are horizontally level
and walls are plumb.
4. In masonry, a “wythe” refers to:
A. A type of brick
B. A vertical layer of masonry units
C. A horizontal joint
D. Mortar mix
Answer: A vertical layer of masonry units
Rationale: A wythe is a continuous vertical section of masonry one unit
thick.
5. What is the primary purpose of a control joint in masonry?
A. Decorative effect
B. Reduce wall thickness
C. Allow for movement and prevent cracking
D. Anchor reinforcement
Answer: Allow for movement and prevent cracking
Rationale: Control joints accommodate expansion and contraction in
masonry walls, reducing cracks.
6. Which type of masonry unit is hollow to reduce weight and improve
insulation?
A. Brick
B. Concrete block
C. Stone
D. Tile
Answer: Concrete block
Rationale: Hollow concrete blocks reduce weight, improve insulation,
and require less mortar.
7. What is the typical compressive strength of Type M mortar?
A. 250 psi
B. 500 psi
, C. 1000 psi
D. 2500 psi
Answer: 2500 psi
Rationale: Type M mortar has high compressive strength, making it
suitable for load-bearing walls and foundations.
8. When laying bricks, the long side visible on the wall is called the:
A. Stretcher
B. Header
C. Soldier
D. Stretcher
Answer: Stretcher
Rationale: The stretcher is the long face of a brick laid horizontally in a
wall.
9. Which method is used to bond bricks together for structural stability?
A. Butt joint
B. Mortar joint
C. Overlap joint
D. Slip joint
Answer: Mortar joint
Rationale: Mortar joints bond bricks together, distributing loads and
sealing gaps.
10. What is the purpose of weep holes in masonry walls?
A. Aesthetic appeal
B. Structural support
C. Allow water drainage
D. Anchor reinforcement
Answer: Allow water drainage
Rationale: Weep holes prevent water accumulation inside walls, reducing
moisture damage.
11. Which type of bond is created by alternating headers and
stretchers in each course?
Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A| Instant Download Pdf
1. Which type of mortar is best for general-purpose masonry work?
A. Type M
B. Type N
C. Type S
D. Type O
Answer: Type N
Rationale: Type N mortar has medium strength and is suitable for
general-purpose above-grade walls exposed to moderate weather.
2. What is the minimum thickness of a standard brick wall?
A. 4 inches
B. 6 inches
C. 8 inches
D. 12 inches
Answer: 8 inches
Rationale: A standard single wythe brick wall is at least 8 inches thick to
provide adequate structural stability.
3. Which of the following tools is used to ensure bricks are level?
A. Chisel
B. Hammer
C. Spirit level
D. Trowel
,Answer: Spirit level
Rationale: A spirit level is used to check that bricks are horizontally level
and walls are plumb.
4. In masonry, a “wythe” refers to:
A. A type of brick
B. A vertical layer of masonry units
C. A horizontal joint
D. Mortar mix
Answer: A vertical layer of masonry units
Rationale: A wythe is a continuous vertical section of masonry one unit
thick.
5. What is the primary purpose of a control joint in masonry?
A. Decorative effect
B. Reduce wall thickness
C. Allow for movement and prevent cracking
D. Anchor reinforcement
Answer: Allow for movement and prevent cracking
Rationale: Control joints accommodate expansion and contraction in
masonry walls, reducing cracks.
6. Which type of masonry unit is hollow to reduce weight and improve
insulation?
A. Brick
B. Concrete block
C. Stone
D. Tile
Answer: Concrete block
Rationale: Hollow concrete blocks reduce weight, improve insulation,
and require less mortar.
7. What is the typical compressive strength of Type M mortar?
A. 250 psi
B. 500 psi
, C. 1000 psi
D. 2500 psi
Answer: 2500 psi
Rationale: Type M mortar has high compressive strength, making it
suitable for load-bearing walls and foundations.
8. When laying bricks, the long side visible on the wall is called the:
A. Stretcher
B. Header
C. Soldier
D. Stretcher
Answer: Stretcher
Rationale: The stretcher is the long face of a brick laid horizontally in a
wall.
9. Which method is used to bond bricks together for structural stability?
A. Butt joint
B. Mortar joint
C. Overlap joint
D. Slip joint
Answer: Mortar joint
Rationale: Mortar joints bond bricks together, distributing loads and
sealing gaps.
10. What is the purpose of weep holes in masonry walls?
A. Aesthetic appeal
B. Structural support
C. Allow water drainage
D. Anchor reinforcement
Answer: Allow water drainage
Rationale: Weep holes prevent water accumulation inside walls, reducing
moisture damage.
11. Which type of bond is created by alternating headers and
stretchers in each course?
