401A Bricklayer Practice Quiz
Free · 196 Questions.

Based on the Red Seal Bricklayer exam blueprint: masonry walls, mortar, natural stone, chimneys and fireplaces, refractories, restoration and arches

📝 125 Q practice test✅ Pass: 70%⏱ Up to 4 hr🔁 Free retakes Updated: October 2026
⚠️ExamHub is an independent study resource and is not affiliated with, endorsed by, or reviewed by Skilled Trades Ontario or the Red Seal program. Questions are original practice materials.
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Mode 1
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125 questions with a 240-minute timer. 70% (88/125) to pass, with complete answer review at the end.
⏱ 240 min125 Qs70% to passAnswer review
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Sequential practice with detailed explanations after every question. Numbered navigator with auto-saving progress.
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Or practice by topic
Common Occupational Skills
24 questions
General Masonry Practices
38 questions
Masonry Systems
42 questions
Natural Stone
19 questions
Chimneys and Fireplaces
20 questions
Refractories and Corrosion Resistant Materials
16 questions
Restoration
20 questions
Additional Masonry: Glass Block, Ornamental, Arches
17 questions
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About the certification

Brick and Stone Mason (401A) Certificate of Qualification

In Ontario, Brick and Stone Mason is trade code 401A, a non-compulsory trade administered by Skilled Trades Ontario. The apprenticeship is 5,600 hours: 4,880 on the job and 720 in school. Across Canada it is the Red Seal trade Bricklayer, so passing the Certificate of Qualification exam also earns the interprovincial Red Seal endorsement.

The Red Seal exam has 125 multiple-choice questions in 8 blocks: common occupational skills (14 questions), general masonry practices (24), masonry systems (27), natural stone (13), chimneys and fireplaces (13), refractories and corrosion resistant materials (10), restoration (14) and additional masonry (10). Between 30 and 40% of the questions test knowledge and recall, 50 to 60% procedural and application, and under 10% critical thinking. The pass mark for the interprovincial exam is 70%.

ExamHub's free 401A practice quiz has 196 original questions weighted to the real exam blocks and tasks, with an explanation and a source for every answer. Safety questions use Ontario's Construction Projects regulation (O. Reg. 213/91) and Ontario's silica guideline. Masonry figures such as tie spacing, flashing, weeps and mortar come from free Brick Industry Association technical notes and are labelled as that guidance, not as Ontario Building Code requirements.

What's covered

196 practice questions, by category

Categories follow the 8 Red Seal exam blocks, weighted like the real exam.

Topic breakdown

  • Common Occupational Skills24
  • General Masonry Practices38
  • Masonry Systems42
  • Natural Stone19

 

  • Chimneys and Fireplaces20
  • Refractories and Corrosion Resistant Materials16
  • Restoration20
  • Additional Masonry: Glass Block, Ornamental, Arches17

Try a few

Sample 401A Bricklayer practice questions

Five sample questions from the question bank, with the answer and explanation.

Question 1
A tube and clamp scaffold is planned to reach 12 metres above its base support for a tall masonry wall. What does O. Reg. 213/91 require?
  • It must be designed by an engineer and erected in accordance with the design
  • It needs no engineer, because the limit for a scaffold of any type is 15 metres
  • It needs an engineer if the wall is also load-bearing masonry
  • It needs a supervisor's sketch if the ground is firm and level

Why: Section 130(1) requires an engineer-designed scaffold, erected to the design, once it exceeds 15 metres above its base support, or 10 metres if it is built with a tube and clamp system. A 12 metre tube and clamp scaffold is over the lower limit. The inspector's written statement and drawings must stay at the project.

Question 2
Two pieces of plain flexible flashing meet at a long run along the base of a brick veneer wall. How should the joint be made, according to BIA Technical Note 7?
  • Lap the pieces at least 6 inches (152 millimetres) and seal with compatible sealant
  • Butt the pieces tightly together and tape the seam on the outside face of the wall
  • Lap the pieces about 2 inches (51 millimetres) and fasten them with mortar dabs
  • Overlap the pieces 12 inches (305 millimetres) and leave the laps dry and unsealed

Why: Technical Note 7 says plain flexible flashing sections should be lapped at least 6 inches and the laps adhered and edges sealed with a sealant or adhesive compatible with the flashing. Self-adhesive flashing laps are typically shorter and follow the manufacturer.

Question 3
What maximum spacing does BIA recommend for open head joint weeps?
  • 24 inches (610 millimetres) on centre
  • 16 inches (406 millimetres) on centre
  • 33 inches (838 millimetres) on centre
  • 48 inches (1219 millimetres) on centre

Why: BIA Technical Note 7 recommends open head joint weeps at no more than 24 inches on centre. Most building codes allow spacing up to 33 inches, and the 16 inch figure is the recommended maximum for wick or tube weeps.

Question 4
How is a fireplace damper set, according to the Red Seal standard and BIA Technical Note 19A?
  • Leveled and sealed on a thin mortar bed, not bonded, and wrapped in compressible material
  • Embedded solid in mortar on each side so that no smoke can leak around its frame
  • Pinned to the lintel with steel anchors and left unsealed at the firebox edges
  • Set on dry brick with no mortar at the joints so that it can expand freely

Why: The Red Seal standard says the damper is leveled and sealed but not bonded to the firebox, with non-combustible material positioned to allow expansion and contraction. BIA Technical Note 19A says it is seated on a thin bed of the same mortar, not embedded, and wrapped with compressible non-combustible material. A lintel above the damper keeps the masonry from bearing on the hot metal.

Question 5
A brick wall has joints 10 millimetres wide that need repointing. To what minimum depth should the old mortar be removed, according to the National Park Service?
  • 20 to 25 millimetres, or 2 to 2 1/2 times the joint width
  • 5 millimetres, or one-half of the width of the joint itself
  • 10 millimetres, or the same depth as the width of the joint
  • 50 millimetres, or five times the width of the joint itself

Why: The National Park Service says old mortar should be removed to a minimum depth of 2 to 2 1/2 times the width of the joint to ensure an adequate bond and prevent mortar popouts. For most brick joints this is about 1/2 to 1 inch.

FAQ

401A Bricklayer questions, answered

How many questions are on the 401A Red Seal exam?

The Red Seal Bricklayer exam has 125 multiple-choice questions. ExamHub's bank has 196 questions, and Test Mode draws a 125-question timed simulation.

What is the pass mark for the 401A exam?

The pass mark for the interprovincial Bricklayer exam is 70%, according to Saskatchewan Apprenticeship's examination information. The Red Seal exam page does not state a time limit, and ExamHub's Test Mode allows up to 4 hours.

What topics are on the Bricklayer exam?

8 blocks: common occupational skills (14 questions), general masonry practices (24), masonry systems (27), natural stone (13), chimneys and fireplaces (13), refractories and corrosion resistant materials (10), restoration (14) and additional masonry such as glass block, ornamental masonry and arches (10).

Is the 401A trade compulsory in Ontario?

No. Brick and Stone Mason (401A) is a non-compulsory trade in Ontario. Skilled Trades Ontario issues the Certificate of Qualification when the exam is passed, and the trade is part of the Red Seal program as Bricklayer.

Are these the real exam questions?

No. These are original practice questions written from the Red Seal standard and free public sources. They are not copies of exam questions.

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