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Trade Skills Assessment for Australia: What Assessors Ask and How to Prepare

How a trade skills assessment works for electricians, diesel mechanics, fitters and other trades, what assessors ask, and how to prepare.

7 minute read · By Ronacker Solutions, Johannesburg

If you are a tradesperson planning to work in Australia, you will probably need a skills assessment. This checks that your skills and experience match the Australian standard for your trade. For many tradespeople, the interview with the assessor is the part that worries them most. This guide explains what to expect and how to prepare.

⚠️ Which assessment you need depends on your trade, your country and your visa. The official rules are on the Trades Recognition Australia (TRA) website. Always follow the guidelines for your own pathway.

How a trade skills assessment usually works

  1. 1Documents: you provide evidence of your qualifications and work experience, such as certificates, payslips, references and a detailed description of your duties.
  2. 2Technical interview: an assessor from an approved training organisation asks you how you do the work, step by step.
  3. 3Practical assessment (for some trades and pathways): you show your skills on real equipment.

The assessor compares what you say and do with the Australian "units of competency" for your trade. These are the official descriptions of each skill, published on training.gov.au.

The kinds of questions assessors ask

Assessors want to hear that you have really done the work. Expect questions like these, usually several for each unit of competency:

"Walk me through how you would isolate this circuit before working on it."

They want the full safe sequence: who you notify, how you isolate, lock and tag, how you test that it is dead, and how you return it to service.

"A diesel engine is blowing white smoke. How do you find the cause?"

They want a logical fault-finding process: what you check first, which tools and tests you use, and how you confirm the fault before you replace parts.

"Tell me about a job that went wrong and what you did."

They want a real example: the problem, what you did, the result, and what you learned.

"Which safety documents do you complete before starting a job?"

They want to hear words like risk assessment, job safety analysis, permit to work and toolbox talk, with an example of when you used them.

How to prepare

  • Read the units of competency for your trade and ask yourself: "Have I done this? Can I explain how?"
  • Prepare a real example from your own work for every unit.
  • Practise answering out loud. Knowing your work and explaining it clearly in English are two different skills.
  • Use the step-by-step order: prepare, make safe, do the work, test, clean up and report.
  • Learn the Australian names for tools, documents and safety steps.
  • Keep your answers about what YOU did, not what "we" did.
Tip: Record yourself answering one question, then listen back. Most people discover they skip safety steps or speak too fast. Fix it, then record again.

Common mistakes

  • Giving one-line answers instead of the full process
  • Forgetting to mention safety and testing
  • Describing what the textbook says instead of what you actually do
  • Making up experience you do not have: assessors ask follow-up questions

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This guide gives general information about jobs, CVs, interviews and English tests. It is not immigration or legal advice. For visas, check the Department of Home Affairs or speak to a registered migration agent.