California Masonry Journeyman Exam
Practice Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. A mason is constructing a load-bearing concrete masonry wall in a
seismic zone. Which bond pattern is most effective for improving
structural integrity and load distribution?
A. Stack bond
B. Running bond
C. Decorative Flemish bond
D. Soldier course bond
B. Running bond
Running bond is most effective in load-bearing masonry because it
staggers vertical joints, improving load distribution and enhancing
resistance to cracking, especially under seismic forces where lateral
movement is significant.
,2. What is the primary purpose of reinforcing steel bars (rebar) in
masonry construction?
A. Increase wall color uniformity
B. Reduce mortar shrinkage only
C. Improve tensile strength of masonry structures
D. Replace the need for mortar joints
C. Improve tensile strength of masonry structures
Rebar is used to compensate for masonry’s weak tensile strength,
allowing the structure to better resist bending, shear forces, and
seismic loads while maintaining overall stability.
3. Which type of mortar is typically used for below-grade masonry
foundations exposed to high moisture?
A. Type O mortar
B. Type S mortar
C. Type N mortar
D. Type K mortar
B. Type S mortar
Type S mortar offers high compressive and lateral strength, making it
suitable for below-grade applications where exposure to soil
pressure and moisture is significant.
4. When laying concrete masonry units (CMUs), what is the
recommended joint thickness for bed joints?
A. 1/8 inch
, B. 3/8 inch
C. 1 inch
D. 1/2 inch
B. 3/8 inch
A 3/8-inch joint thickness is standard in masonry to ensure uniform
load transfer, proper bonding, and structural consistency between
CMU units.
5. What is efflorescence in masonry work primarily caused by?
A. Excessive reinforcement steel
B. Water-soluble salts migrating to the surface
C. Overburned bricks
D. Poor alignment of masonry units
B. Water-soluble salts migrating to the surface
Efflorescence occurs when moisture dissolves salts within masonry
materials and brings them to the surface, leaving a white crystalline
deposit after evaporation.
6. Which tool is primarily used to ensure masonry walls are vertically
aligned?
A. Brick hammer
B. Level
C. Trowel
D. Jointers
B. Level
, A level is essential for checking plumb and ensuring that masonry
walls are vertically aligned during construction to maintain structural
integrity.
7. What is the main function of a control joint in masonry walls?
A. Increase wall weight
B. Allow controlled cracking due to movement
C. Strengthen mortar joints
D. Reduce curing time
B. Allow controlled cracking due to movement
Control joints are designed to accommodate thermal expansion,
shrinkage, and movement, preventing random cracking in masonry
structures.
8. Which masonry unit is most commonly used in modern commercial
structural walls?
A. Clay brick
B. Natural stone
C. Concrete masonry unit (CMU)
D. Adobe brick
C. Concrete masonry unit (CMU)
CMUs are widely used in commercial construction due to their
strength, uniformity, cost-effectiveness, and ease of reinforcement.
9. What is the minimum required curing period for masonry mortar to
achieve proper strength under normal conditions?
Practice Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. A mason is constructing a load-bearing concrete masonry wall in a
seismic zone. Which bond pattern is most effective for improving
structural integrity and load distribution?
A. Stack bond
B. Running bond
C. Decorative Flemish bond
D. Soldier course bond
B. Running bond
Running bond is most effective in load-bearing masonry because it
staggers vertical joints, improving load distribution and enhancing
resistance to cracking, especially under seismic forces where lateral
movement is significant.
,2. What is the primary purpose of reinforcing steel bars (rebar) in
masonry construction?
A. Increase wall color uniformity
B. Reduce mortar shrinkage only
C. Improve tensile strength of masonry structures
D. Replace the need for mortar joints
C. Improve tensile strength of masonry structures
Rebar is used to compensate for masonry’s weak tensile strength,
allowing the structure to better resist bending, shear forces, and
seismic loads while maintaining overall stability.
3. Which type of mortar is typically used for below-grade masonry
foundations exposed to high moisture?
A. Type O mortar
B. Type S mortar
C. Type N mortar
D. Type K mortar
B. Type S mortar
Type S mortar offers high compressive and lateral strength, making it
suitable for below-grade applications where exposure to soil
pressure and moisture is significant.
4. When laying concrete masonry units (CMUs), what is the
recommended joint thickness for bed joints?
A. 1/8 inch
, B. 3/8 inch
C. 1 inch
D. 1/2 inch
B. 3/8 inch
A 3/8-inch joint thickness is standard in masonry to ensure uniform
load transfer, proper bonding, and structural consistency between
CMU units.
5. What is efflorescence in masonry work primarily caused by?
A. Excessive reinforcement steel
B. Water-soluble salts migrating to the surface
C. Overburned bricks
D. Poor alignment of masonry units
B. Water-soluble salts migrating to the surface
Efflorescence occurs when moisture dissolves salts within masonry
materials and brings them to the surface, leaving a white crystalline
deposit after evaporation.
6. Which tool is primarily used to ensure masonry walls are vertically
aligned?
A. Brick hammer
B. Level
C. Trowel
D. Jointers
B. Level
, A level is essential for checking plumb and ensuring that masonry
walls are vertically aligned during construction to maintain structural
integrity.
7. What is the main function of a control joint in masonry walls?
A. Increase wall weight
B. Allow controlled cracking due to movement
C. Strengthen mortar joints
D. Reduce curing time
B. Allow controlled cracking due to movement
Control joints are designed to accommodate thermal expansion,
shrinkage, and movement, preventing random cracking in masonry
structures.
8. Which masonry unit is most commonly used in modern commercial
structural walls?
A. Clay brick
B. Natural stone
C. Concrete masonry unit (CMU)
D. Adobe brick
C. Concrete masonry unit (CMU)
CMUs are widely used in commercial construction due to their
strength, uniformity, cost-effectiveness, and ease of reinforcement.
9. What is the minimum required curing period for masonry mortar to
achieve proper strength under normal conditions?
