Free Practice Questions for Boilermaker Trade Test
Exam-style questions and explanations by OpenExamPrep.
Loading practice questions...
Explore More South Africa Artisan Trade Tests
Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.
Key Facts: Boilermaker Trade Test Exam
100
Practice Questions
OpenExamPrep
QCTO/NAMB
Moderating Body
QCTO
N2
Underpinning Trade Theory
DHET/NAMB
Competent
Practical Trade Test Result
NAMB
Plater
Plate & Structural Fabricator
QCTO
SANS
South African Standards
SABS
The Boilermaker artisan trade test in South Africa is the external assessment, moderated by the National Artisan Moderation Body (NAMB) under the QCTO, that certifies a candidate as a qualified Boilermaker (plate and structural fabricator). It is a practical trade test, graded Competent or Not Yet Competent, with an integrated underpinning-knowledge component rather than a fixed published number of questions. Candidates typically hold an N2 certificate (mathematics, engineering science and relevant trade theory) and complete an apprenticeship, learnership or recognised experience before booking at a NAMB-accredited trade test centre. The trade theory spans plate and structural fabrication, pattern development (parallel-line, radial-line and triangulation), welding and thermal cutting, blueprint reading, materials and metallurgy, rigging basics and safety. This free prep includes 100 research-based practice questions with explanations and an AI tutor.
Sample Boilermaker Trade Test Practice Questions
Try these sample questions to review concepts for the Boilermaker Trade Test exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1In plating and structural steel drawing, which method of pattern development is correctly used to develop the surface of a right cylinder?
2A boilermaker must develop the pattern for a right cone. Which development method is appropriate?
3Which development method is required to lay out a square-to-round transition piece?
4When developing a pattern, why must true lengths of lines be found before the pattern is drawn?
5To mark off the circumference of a 600 mm diameter cylinder on a flat plate for rolling, what stretch-out (girth) length should be set out (use pi = 3.142)?
6When calculating the blank (developed) length for a 90-degree bend, a boilermaker uses the neutral axis. For mild steel, the neutral axis is normally taken at approximately what fraction of the material thickness from the inside of the bend?
7In structural steel fabrication, what does a section marked '203 x 133 x 30 UB' describe?
8On an engineering drawing, a weld symbol with the triangle (fillet) placed below the reference line indicates the weld is to be made on which side of the joint?
9Which oxy-acetylene flame setting should be used for cutting and welding mild steel to avoid carbon pick-up or oxidation of the weld?
10In oxygen-fuel (flame) cutting of steel, what is the fundamental chemical action that removes the metal in the kerf?
About the Boilermaker Trade Test Exam
The South African Boilermaker artisan trade test is the external, NAMB-moderated assessment that certifies a candidate as a qualified Boilermaker (plater/structural fabricator). It is a practical trade test with an integrated knowledge assessment, underpinned by N2 trade theory covering plate and structural fabrication, development and pattern marking, welding and thermal cutting, drawing reading, materials and rigging.
Exam sponsor: Quality Council for Trades and Occupations (QCTO) / National Artisan Moderation Body (NAMB). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Assessment
Practical artisan trade test moderated by NAMB with an integrated underpinning-knowledge assessment, graded Competent / Not Yet Competent; this practice bank is 100 selected-response trade-theory items
Time Limit
Multi-day practical assessment (varies by accredited trade test centre)
Passing Score
Competent (knowledge assessments commonly require ~50% or higher)
Exam / Certification Fees
Set by each accredited trade test centre; not published as a single national fee (typically several thousand rand)
Exam sponsor websiteFees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Our practice resources: topics covered
We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.
Plate & Structural Fabrication
Marking off, rolling and pre-bending, bend allowance and springback, distortion control, squareness, jigs/fixtures, fit-up and erection
Development & Pattern Marking
Parallel-line, radial-line and triangulation development, true-length diagrams, stretch-out and girth, templates and nesting
Welding & Thermal Cutting
SMAW/GMAW/oxy-acetylene, joint preparation, weld defects, oxy-fuel and plasma cutting, kerf, NDT and gas safety
Blueprint & Drawing Reading
Orthographic and isometric views, line types, sectioning, weld symbols, structural section designations, scales and tolerances
Materials & Metallurgy
Steel grades and properties, heat-affected zone, pre-heating and stress relief, galvanised fume, mill scale and surface preparation
Rigging Basics
Centre of gravity, sling angles and tension, safe working load, chain blocks, sling inspection and crane signalling
Safety
OHS Act duties, hot work permits, confined-space ventilation, grinder and electrical safety, arc-eye PPE and emergency response
Preparing for the Boilermaker Trade Test Exam
What You Need to Know
- Passing score: Competent (knowledge assessments commonly require ~50% or higher)
- Assessment: Practical artisan trade test moderated by NAMB with an integrated underpinning-knowledge assessment, graded Competent / Not Yet Competent; this practice bank is 100 selected-response trade-theory items
- Time limit: Multi-day practical assessment (varies by accredited trade test centre)
- Exam / certification fees: Set by each accredited trade test centre; not published as a single national fee (typically several thousand rand) Official sources
Using Our Practice Resources
- Work through all 100 available questions
- Review every answer and explanation
- Track weak areas and revisit them
- Use our AI tutor for tough concepts
Boilermaker Trade Test: Suggested Study Strategy
Frequently Asked Questions
How many questions are on the South African boilermaker trade test?
The boilermaker artisan trade test is a practical, NAMB-moderated assessment graded Competent or Not Yet Competent, with an integrated underpinning-knowledge component rather than a fixed published number of multiple-choice questions. Our free bank of 100 trade-theory practice questions helps you prepare that knowledge.
What do I need before I can write the boilermaker trade test?
Candidates typically need an N2 certificate with mathematics, engineering science and relevant trade theory (or a SETA-approved equivalent at NQF level 3), plus a completed apprenticeship, learnership or recognised workplace experience. Recognition of prior learning routes usually require around three years of relevant experience.
Who administers the boilermaker trade test in South Africa?
The trade test is moderated by the National Artisan Moderation Body (NAMB) under the Quality Council for Trades and Occupations (QCTO) and is delivered at accredited trade test centres such as INDLELA and approved private centres.
What topics does the boilermaker trade theory cover?
It covers plate and structural fabrication, pattern development (parallel-line, radial-line and triangulation), welding and thermal cutting, blueprint and drawing reading, materials and metallurgy, rigging basics and safety, including South African SANS standards and the OHS Act.
How is the boilermaker trade different from the welder trade?
A boilermaker is primarily a plater and structural fabricator who develops patterns and marks off, forms and rolls plate, and assembles plate and structural steel, using welding as one tool. A welder focuses on the welding processes themselves. The boilermaker test emphasises development, marking off and fabrication alongside welding.
Is this free boilermaker practice as good as paid prep?
Our 100 practice questions cover the boilermaker trade-theory areas with a teaching explanation for every answer plus free daily AI tutor interactions. All content is free forever and updated for 2026, using correct South African terminology and SANS references.