Ironworker · Red Seal 420B · 420A · 452A
Five Ironworker Red Seal practice exam questions, answers included.
Ironworker has three Red Seal exams, so each question is labelled with the exams it is on. Pick an answer, then open the explanation. Every question in the bank explains all four options, not just the right one.
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The end hook of a good steel tape measure slides in and out by about its own thickness. Why is it made to move?
- So the hook can absorb a drop without bending the blade.
- So hooked and pushed readings both start at true zero.
- So the blade can retract without the hook striking the case.
- To allow for stretch of the blade when it is pulled tight.
Show the answer
B. Correct. Hooked over an edge the hook pulls out, so zero is at its inside face; pushed against a wall it slides in, so zero is at its outside face. The movement equals the hook thickness, so both readings are true. A bent hook or worn rivets spoil this: check it against a known length.
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During the pre-use inspection of a wire rope sling at a hydro dam, an ironworker checks the rope diameter for wear with calipers. How is the rope measured?
- Across the pressed sleeve, where the rope cannot flatten.
- Across the flats between strands, at the narrowest point.
- Across the crowns of opposite strands, at the widest point.
- Beside the end fitting, where the rope sees the least wear.
Show the answer
C. Correct. A wire rope's diameter is the circle that encloses all the strands, so the calipers go across the crowns of opposite strands. Measuring across the flats reads small and would make a good rope look worn or hide real wear when compared with a crown reading.
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In a parking-structure column, the 45M verticals continue as 45M bars into the column above. How are these bars spliced?
- With mechanical or welded splices instead of laps.
- With contact laps tied at each end of the lap.
- With laps lengthened in proportion to the bar size.
- With laps detailed to carry compression only.
Show the answer
A. Correct. Bars larger than 35M are not lapped to one another: a 45M or 55M bar is joined end to end with a mechanical coupler or a welded splice, as the engineer details. That is one reason couplers are common in heavy columns.
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As a beam end settles onto a column's clip angles, the holes are close to lining up but not quite there. How does the connector find the holes and bring them into line?
- Start a bolt in the nearest hole and draw the rest in with it.
- Feel through the holes with a finger to judge the offset.
- Drive a drift pin or the spud's tapered handle into the holes.
- Ream the holes larger until a bolt will pass through them.
Show the answer
C. Correct. The tapered end of a drift pin or spud wrench finds the hole and draws the plies into line as it goes in, so a bolt can follow. Fingers never go into the holes to check them.
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An ironworker will torch cut a rigged beam free from a column in a pulp mill being dismantled. Where does the cutter stand for the final cut?
- On the beam being cut, close to the crane hook.
- On the beam being cut, tied off to the column.
- Straddling the cut, one foot on each side of it.
- On the part that stays, tied off to it.
Show the answer
D. Correct. A worker stands only on the part of a structure that will still safely support the worker. Once cut, the beam is free to swing or drop on its rigging, so the cutter stays on the remaining steel, tied off to it and clear of the beam's path.
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Generalist (420B) Structural/Ornamental (420A) Reinforcing (452A)Want ten more with every option explained? Free Ironworker Red Seal practice questions — no account, no email, printable.
The Ironworker Red Seal exams at a glance
What you're walking into.
Question mix — each exam's official breakdown
Generalist and Structural/Ornamental
Reinforcing
Ironworker is three Red Seal trades, Generalist, Structural/Ornamental and Reinforcing, and each has its own exam of 120 multiple-choice questions built from its own breakdown. Which one you write depends on the trade you are certifying in. Generalist ironworkers work with both structural/ornamental and reinforcing steel. Structural/ornamental ironworkers install structural steel, precast concrete members and mass timber, and erect pre-engineered buildings, curtain walls, stairways, railings and other ornamental ironwork. Reinforcing ironworkers cut, bend, lay out, place, tie, couple and weld reinforcing steel, and place and stress post-tensioning systems.
The provinces differ, too. The Red Seal trade pages list Generalist in British Columbia, Manitoba, New Brunswick, Newfoundland and Labrador, Nova Scotia, Ontario and Prince Edward Island; Structural/Ornamental in Alberta, New Brunswick, Newfoundland and Labrador, Nova Scotia, Ontario, Prince Edward Island, Quebec and Saskatchewan; and Reinforcing in all of those provinces except Manitoba. They list none of the three for Yukon, the Northwest Territories or Nunavut. Ontario has all three: Ironworker - Generalist (420B), Ironworker - Structural and Ornamental (420A) and Reinforcing Rodworker (452A). Skilled Trades Ontario gives the 420A apprenticeship as 5,280 hours on the job and 720 hours in school over three levels, and 452A as 3,640 and 360 over two. If you are not sure which trade you are registered in, your apprenticeship authority can tell you before you book.
Generalist and Structural/Ornamental put 50 to 60 percent of their questions on knowledge and recall, 35 to 45 percent on procedural and application and under 10 percent on critical thinking; Reinforcing puts 65 to 75 percent on recall and 25 to 35 percent on procedure. Every other trade we cover puts at most half its questions on recall. In the Red Seal Program's words, the incorrect options are not always obvious. The Red Seal Exam Preparation Guide gives the pass mark as 70 percent, which is 84 correct answers out of 120, gives four hours of writing time, about 2 minutes a question, and says a calculator is provided if you need one. Each exam information page publishes that exam's own formula sheet and acronym list, of 52, 45 and 60 terms, and says both will be provided with the exam sitting. The three sheets share sling tension, working load limit, wire rope clips and the geometry formulas but differ in the rest: only the Reinforcing sheet has cut length and bending pins, and only the Structural/Ornamental sheet has lead line pull and the turn-of-nut table.
All three trades have a Red Seal Occupational Standard published in 2025, and the breakdowns on this page follow them, as the exam information pages do. The Red Seal trade pages still say exams on the new standards are under development and name the 2015 analysis as the basis of the current exams, while SkilledTradesBC lists its Generalist and Reinforcing Red Seal exams as aligned to the 2025 standards, active from August 31 and July 27, 2026. If you are writing soon, ask your apprenticeship authority which version you will sit.
The full Ironworker Red Seal practice exam
Know your real Ironworker exam score before exam day.
Red Seal–style practice for all three Ironworker exams — Generalist (420B in Ontario), Structural/Ornamental (420A) and Reinforcing (452A). Pick your exam and every test is weighted to that exam's own blocks, as its official breakdown sets them, so the score you get here reflects the score you'd get there. One Exam Pass covers all three.
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Generalist (420B) Structural/Ornamental (420A) Reinforcing (452A) Get all 880 — $69What the Ironworker exams cover
Three exams, six blocks.
The Generalist standard groups the trade into 6 major work activities, 19 tasks and 70 sub-tasks. Structural/Ornamental has 4, 14 and 52 and Reinforcing 4, 14 and 53, and both are built from the same blocks: common occupational skills and rigging on all three exams, erection and maintenance on Generalist and Structural/Ornamental, and reinforcing and post-tensioning on Generalist and Reinforcing. The question counts below are each exam's official breakdown. Our bank is written to the Generalist standard and every question is tagged with the exams it belongs to, so a test for your exam draws from your exam's blocks at your exam's weighting.
- A
Performs common occupational skills · Generalist 14 · Structural/Ornamental 20 · Reinforcing 29
A safe and healthy workplace, PPE and safety equipment; hand, power, bending and powder-actuated tools, mobile elevating work platforms, material handling equipment, ladders, scaffolding, surveying, welding and cutting equipment; organizing materials, layout, drawings and planning; continuous learning; communication and mentoring. Block A on all three exams. Free block A questions: safety, tools, layout and drawings →
- B
Performs rigging, hoisting and positioning, and mobilization, erection, and demobilization of cranes · Generalist 32 · Structural/Ornamental 38 · Reinforcing 28
Planning the lift, rigging, hoisting and positioning the load, post-lift activities, and mobilizing, erecting and demobilizing cranes; on Reinforcing, taking part in mobilizing and demobilizing cranes and equipment. Rigs, hoists and positions load is the largest task in this block on every exam. Block B on all three. Free block B questions: rigging, hoisting and cranes →
- C
Fabricates and installs reinforcing materials · Generalist 21 · Reinforcing 49
Cutting and bending reinforcing materials on site, and placing, tying and splicing them. Installing reinforcing materials alone is 34 questions on the Reinforcing exam, the largest single task on any of the three. Not on Structural/Ornamental. Free block C questions: rebar cutting, bending, placing and splicing →
- D
Performs pre-stressing/post-tensioning · Generalist 10 · Reinforcing 14
Placing pre-stressed and post-tensioning systems (profile, tendons and accessories, bursting steel and anchorages), stressing tendons, and grouting them. Not on Structural/Ornamental. Free block D questions: pre-stressing and post-tensioning →
- E
Performs erection, assembly and installation · Generalist 31 · Structural/Ornamental 43
Installing primary and secondary structural members, from falsework to bolting; ornamental, miscellaneous and steel cladding systems such as curtain walls, stairs, railings, grating and decking; and conveyors, machinery and equipment. Block C on Structural/Ornamental; not on Reinforcing. Free block E questions: erection, assembly and installation →
- F
Performs maintenance and upgrading · Generalist 12 · Structural/Ornamental 19
Decommissioning, disassembling and removing structural, ornamental, mechanical and miscellaneous components, and maintaining and repairing them: condition assessment, repairs, revisions and reinforcing, replacement and preventative maintenance. Block D on Structural/Ornamental; not on Reinforcing. Free block F questions: maintenance, repair and dismantling →
| Block (Generalist letters) | Generalist 420B | Structural/ Ornamental 420A | Reinforcing 452A |
|---|---|---|---|
| A Common occupational skills | 14 | 20 (A) | 29 (A) |
| B Rigging, hoisting and cranes | 32 | 38 (B) | 28 (B) |
| C Reinforcing materials | 21 | · | 49 (C) |
| D Pre-stressing/post-tensioning | 10 | · | 14 (D) |
| E Erection, assembly and installation | 31 | 43 (C) | · |
| F Maintenance and upgrading | 12 | 19 (D) | · |
| Total | 120 | 120 | 120 |
Letters in brackets are each exam's own block letters. A dot means the block is not on that exam.
Where our numbers come from
Every question, anchored to the standard.
Ironwork questions can quietly go wrong in three ways: a figure that differs by province, such as a fall-protection height or a power-line limit, stated as if it were national; an engineer's number, such as a lap length or a bolt tension, presented as a rule of thumb; and a rigging calculation that leans on a formula your exam's sheet does not carry. Every question in our Ironworker bank is anchored to a sub-task of the Generalist occupational standard, tagged with the exams it belongs to, and verified against the standard, with all four options explained. Provincial and engineers' figures a question depends on are stated in the question, and a calculation relies without being told only on a formula printed on the sheet of every exam the question is tagged for. The question counts above are the Red Seal Program's own exam breakdowns for Generalist, Structural/Ornamental and Reinforcing, and every question is mapped to a sub-task of the 2025 Red Seal Occupational Standard for Ironworker (Generalist). For what each block covers on each exam and where to spend your study time, read the Ironworker Red Seal exam guide. Read how our questions are made.
Last reviewed against the Red Seal Program's published exam information.
Why practice scores mislead
Years on the steel are not the same as your exam's blueprint.
Half or more of every Ironworker exam is knowledge and recall, and 65 to 75 percent on Reinforcing. The Red Seal Program says those questions test definitions, facts and principles, so know the names of components, hardware, drawings and methods exactly, not roughly. Most of the rest is procedure: what is done first, and what has to be true before a load comes off the hook or a member is cut free. And the three exams weight the same blocks very differently. Common skills and rigging are 46 of the 120 Generalist questions, 58 on Structural/Ornamental and 57 on Reinforcing, and a Generalist candidate who mostly erects steel still faces 31 questions on reinforcing and post-tensioning. TicketPrep weights every test to the published blueprint of the exam you pick, so a weak block here is a weak block there.
How TicketPrep prepares you
Built like a study tool, not a quiz app.
Weighted to your exam's blueprint
Pick Generalist, Structural/Ornamental or Reinforcing, and every test draws from that exam's own blocks at the weightings its official breakdown publishes.
Every answer explained
Learn why the right answer is right — and why each of the other three is wrong. That's where the learning happens.
Timed mock exams
Full-length tests that match the 120-question count and the four hours the Red Seal preparation guide gives, so exam day feels familiar.
Know your weak areas
Your score broken out by work activity, so you always know which block to drill next.
Ironworker exam questions
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