CA C29 Masonry Contractor Exam

CA C29 Masonry Contractor Exam Questions And Correct Answers (Verified Answers) Plus Rationale2026 Q&A| Instant Download Pdf

• Which of the following is the primary material used in masonry

construction?

• Wood
• Steel
• Concrete block
• Glass

Rationale: Concrete blocks are widely used as the primary unit in

masonry due to their strength and durability.

• What is the standard thickness of a typical brick wall?
• 2 inches
• 4 inches
• 8 inches
• 12 inches

Rationale: A standard brick wall is typically 8 inches thick,

equivalent to one brick laid lengthwise.

• Which type of mortar is best suited for load-bearing walls?
• Type O
• Type N
• Type M
• Type S

Rationale: Type M mortar has the highest compressive strength,

making it suitable for load-bearing walls.

• What is the main purpose of weep holes in a masonry wall?
• Aesthetic appearance 1 / 3

• Ventilation
• Drainage of moisture
• Supporting wall weight

Rationale: Weep holes allow water that has penetrated the masonry to

drain out, preventing damage.

• Which tool is commonly used to ensure bricks are level?
• Hammer
• Chisel
• Spirit level
• Trowel

Rationale: A spirit level is used to check horizontal and vertical

alignment of bricks during construction.

• What type of bond is formed when bricks are laid with headers

alternating with stretchers?

• Running bond
• Flemish bond
• Stack bond
• English bond

Rationale: Flemish bond alternates headers and stretchers in each

course, providing structural strength and aesthetic appearance.

• Which masonry material is known for high compressive strength but

low tensile strength?

• Wood
• Concrete block
• Steel
• Glass

Rationale: Concrete blocks have high compressive strength, but their

tensile strength is low, requiring reinforcement in certain applications.

• What is the recommended curing period for masonry mortar before

applying load?

• 1 day
• 3 days
• 7 days
• 28 days

Rationale: Mortar achieves sufficient strength to support load after

approximately 7 days, though full curing may take longer. 2 / 3

9. The vertical distance between two masonry courses is called:

• Bed
• Wythe height
• Joint
• Stretcher

Rationale: A wythe is a continuous vertical section of masonry, and

its height is measured vertically between courses.

• Which reinforcement is typically used in masonry walls to resist

lateral forces?

• Aluminum mesh
• Fiberglass
• Steel rebar
• Plastic ties

Rationale: Steel reinforcement bars are embedded in masonry to

increase resistance to bending and lateral forces.

• What is the purpose of control joints in masonry walls?
• Decorative pattern
• Strengthening
• Allowing movement due to expansion and contraction
• Load distribution

Rationale: Control joints prevent cracking by allowing the wall to

expand and contract without damage.

• Which type of masonry unit is hollow and lightweight, reducing

wall weight?

• Solid brick
• Concrete block
• Stone block
• Clay tile

Rationale: Concrete blocks can be hollow, reducing weight while

maintaining structural integrity.

• What is the ideal mix ratio for Type N mortar

(cement:lime:sand)?

A. 1:2:9

B. 1:1:6

C. 1:1:6

D. 1:0.5:4

Rationale: Type N mortar is a medium-strength mix suitable for

• / 3