Masonry and Bricklaying Practice Exam 2026 – 190 University-Level
Multiple-Choice Questions with Correct Answers & Detailed
Explanations, Brickwork, Mortar Mixing, Bond Patterns, Wall
Construction, Foundations, Structural Masonry, Tools, Building
Codes & Site Safety
SECTION A: MASONRY MATERIALS AND PROPERTIES (Questions 1–30)
Question 1
Which of the following best describes the primary function of mortar in a masonry
assemblage?
A. To serve as the primary load-bearing component of the wall
B. To bond masonry units into a unified structural element and accommodate minor
movements
C. To provide thermal insulation between masonry units
D. To prevent water penetration through the wall assembly
Correct Answer: B
Explanation: Mortar bonds units, accommodates minor differential movement, and
distributes stresses; it is not the primary load-bearing element. Best practice: specify mortar
to match unit strength and exposure conditions.
Question 2
A masonry unit that absorbs water rapidly and has a high initial rate of absorption (IRA) will
most likely cause which problem if not properly managed?
,A. Excessive compressive strength development in the mortar
B. Premature drying of mortar, reducing bond strength
C. Increased freeze-thaw resistance of the mortar joint
D. Reduced efflorescence potential
Correct Answer: B
Explanation: High-IRA units draw water from mortar prematurely, reducing bond; pre-
wetting or using appropriate mortar can mitigate this. Best practice: test IRA and adjust
construction procedures accordingly.
Question 3
Which type of mortar cement is specifically formulated to produce mortar with improved
workability and water retention?
A. Type M
B. Type S
C. Type N
D. Masonry cement
Correct Answer: D
Explanation: Masonry cement is manufactured with plasticizing agents to improve
workability and water retention, unlike portland cement-lime mortars. Best practice: follow
manufacturer's proportions and do not add extra cement.
Question 4
,In masonry construction, efflorescence is best described as:
A. A type of mortar joint finish
B. A white crystalline deposit of soluble salts on the masonry surface
C. A method of reinforcing masonry walls
D. A decorative pattern in brickwork
Correct Answer: B
Explanation: Efflorescence results from soluble salts migrating to the surface and
crystallizing; it is cosmetic but can indicate moisture problems. Best practice: use clean
materials and proper flashing/drainage to prevent it.
Question 5
Which property of brick is most directly affected by the firing temperature during
manufacturing?
A. Color and density
B. Mortar type required
C. Wall thickness
D. Joint spacing
Correct Answer: A
Explanation: Firing temperature influences color, density, strength, and absorption; higher
temperatures generally produce denser, darker units. Best practice: specify brick by ASTM
grade and absorption requirements for the application.
, Question 6
A concrete masonry unit (CMU) with a nominal dimension of 8 × 8 × 16 inches typically has
an actual face dimension of:
A. 8 × 8 × 16 inches
B. 7⅝ × 7⅝ × 15⅝ inches
C. 8 × 8 × 15 inches
D. 7½ × 7½ × 15½ inches
Correct Answer: B
Explanation: Nominal dimensions include the mortar joint (typically ⅜ inch), so actual
dimensions are ⅜ inch less per dimension. Best practice: use actual dimensions for modular
coordination and estimating.
Question 7
Which of the following is a primary reason for using lime in mortar?
A. To increase compressive strength
B. To improve workability and water retention
C. To accelerate setting time
D. To reduce cost only
Correct Answer: B
Multiple-Choice Questions with Correct Answers & Detailed
Explanations, Brickwork, Mortar Mixing, Bond Patterns, Wall
Construction, Foundations, Structural Masonry, Tools, Building
Codes & Site Safety
SECTION A: MASONRY MATERIALS AND PROPERTIES (Questions 1–30)
Question 1
Which of the following best describes the primary function of mortar in a masonry
assemblage?
A. To serve as the primary load-bearing component of the wall
B. To bond masonry units into a unified structural element and accommodate minor
movements
C. To provide thermal insulation between masonry units
D. To prevent water penetration through the wall assembly
Correct Answer: B
Explanation: Mortar bonds units, accommodates minor differential movement, and
distributes stresses; it is not the primary load-bearing element. Best practice: specify mortar
to match unit strength and exposure conditions.
Question 2
A masonry unit that absorbs water rapidly and has a high initial rate of absorption (IRA) will
most likely cause which problem if not properly managed?
,A. Excessive compressive strength development in the mortar
B. Premature drying of mortar, reducing bond strength
C. Increased freeze-thaw resistance of the mortar joint
D. Reduced efflorescence potential
Correct Answer: B
Explanation: High-IRA units draw water from mortar prematurely, reducing bond; pre-
wetting or using appropriate mortar can mitigate this. Best practice: test IRA and adjust
construction procedures accordingly.
Question 3
Which type of mortar cement is specifically formulated to produce mortar with improved
workability and water retention?
A. Type M
B. Type S
C. Type N
D. Masonry cement
Correct Answer: D
Explanation: Masonry cement is manufactured with plasticizing agents to improve
workability and water retention, unlike portland cement-lime mortars. Best practice: follow
manufacturer's proportions and do not add extra cement.
Question 4
,In masonry construction, efflorescence is best described as:
A. A type of mortar joint finish
B. A white crystalline deposit of soluble salts on the masonry surface
C. A method of reinforcing masonry walls
D. A decorative pattern in brickwork
Correct Answer: B
Explanation: Efflorescence results from soluble salts migrating to the surface and
crystallizing; it is cosmetic but can indicate moisture problems. Best practice: use clean
materials and proper flashing/drainage to prevent it.
Question 5
Which property of brick is most directly affected by the firing temperature during
manufacturing?
A. Color and density
B. Mortar type required
C. Wall thickness
D. Joint spacing
Correct Answer: A
Explanation: Firing temperature influences color, density, strength, and absorption; higher
temperatures generally produce denser, darker units. Best practice: specify brick by ASTM
grade and absorption requirements for the application.
, Question 6
A concrete masonry unit (CMU) with a nominal dimension of 8 × 8 × 16 inches typically has
an actual face dimension of:
A. 8 × 8 × 16 inches
B. 7⅝ × 7⅝ × 15⅝ inches
C. 8 × 8 × 15 inches
D. 7½ × 7½ × 15½ inches
Correct Answer: B
Explanation: Nominal dimensions include the mortar joint (typically ⅜ inch), so actual
dimensions are ⅜ inch less per dimension. Best practice: use actual dimensions for modular
coordination and estimating.
Question 7
Which of the following is a primary reason for using lime in mortar?
A. To increase compressive strength
B. To improve workability and water retention
C. To accelerate setting time
D. To reduce cost only
Correct Answer: B
