Trade job interview questions and answers: five technical questions to practise in any trade

Trade job interview questions and answers are easier to prepare when you see the pattern behind them. Most technical questions fit five types: a job you explain step by step, the tools you use, how you keep yourself and others safe, a fault you found and fixed, and how you work with other people. Learn one simple answer order for all five, practise it out loud with your own work, and you will not need to memorise a long list of questions.

Why technical questions need their own practice

A trade interview usually mixes general questions about you with questions about the work itself. We cover the first kind in our guide to the general questions in a sponsor employer interview. This guide is only about the technical side.

The Australian Human Rights Commission says an interview may include a task that checks whether you have the skills for the job. Canada's Job Bank tells people to be ready for questions on what they did and how they did it. The interviewer is not testing your grammar. They want to hear that you know the work, its order and the safe way to do it.

The five types of technical question

These are practice examples, not a list that every interviewer uses. If you can answer one of each type, you have a base for the rest.

One answer order for any trade

Nervous people jump around: a tool, a safety point, then the start of the job. Use the same order every time and you will sound calm, even with simple English.

1. Name the job. One sentence that says what you are doing and why. "I am replacing a worn tap washer in a kitchen."
2. Give the steps in order. Use "first", "then", "next" and "after that". Name the tool at the step where you use it.
3. Put the safety step where it belongs. Isolating the water, the power or the machine comes at the start, not as an extra line at the end.
4. Say how you check the work. A test, a measurement or a look. This is the part many people forget.
5. Stop. Wait for the next question. A short pause is fine.

For questions about something that happened in the past, add the result at the end. Government advice in Australia, New Zealand, the UK and Canada points to the STAR method for this: Situation, Task, Action and Result. The UK National Careers Service guide to the STAR method also says to keep examples short and be ready for follow-up questions.

Type 1: a job you explain step by step

Here the interviewer names a normal job in your trade and asks you to talk them through it. They listen for the order, the tool names and the checks.

VETASSESS, an Australian Government authorised skills assessment authority, suggests practising this: "Tell me the tasks you do at work. Now tell me how you do each of them, what steps do you take, why do you do it that way?" It works for a job interview too.

For a carpenter, a simple answer could be: "First I check the opening is square and the door is the right size. Then I mark the hinge positions and cut the hinge recesses with a chisel. Next I fit the hinges and hang the door. After that I check the gap all the way round and that it closes without binding. Last, I fit the latch and the strike plate."

Type 2: tools and equipment

Tool questions check that you pick the right tool and know when not to use it. Choose one you use every day and say what it does, how you set it up and one limit. One of the VETASSESS practice questions is simply "Explain how a tool/piece of equipment you use works".

For a diesel mechanic, a simple answer could be: "I use a torque wrench on wheel nuts and engine bolts. I set the value from the service manual, pull slowly until it clicks, and stop at the click. I do not use it to undo tight bolts, because that can upset the setting."

Type 3: safety questions

In the VETASSESS list of technical interview areas for trades such as carpenter, bricklayer and motor mechanic, workplace health and safety comes first: manual handling, finding hazards on the site, and wearing the right personal protective equipment (PPE).

A weak answer is "I always wear my PPE". In Australia's model Code of Practice for construction work, PPE is the lowest order control, because it does nothing to change the hazard itself. A stronger answer starts with removing or reducing the danger, then talks about gloves and glasses.

For a bricklayer, a simple answer could be: "Before I start, I check the scaffold has been signed off and the planks are complete. I keep the bricks stacked so I do not twist when I lift. If something looks wrong, I stop and tell the supervisor. Then I put on my gloves, glasses and hard hat."

Type 4: a fault you found and fixed

Fault questions show how you think: you test in order, from simple checks to harder ones, and you prove the repair worked.

This is a past-event question, so use STAR. The National Research Council Canada tells its own job candidates to be specific and to use "I" statements, not "we" statements.

For an auto electrician, a simple answer could be: "A ute came in that would not start some mornings. The battery tested fine, so I checked the cables. I found a loose, corroded earth strap on the engine. I cleaned the contact points, fitted a new strap and tested the start several times. The customer had no more trouble."

Type 5: working with other people

Trade work is rarely done alone. The Australian Human Rights Commission's interview guide lists questions such as "Describe a situation where you had to handle a problem. What did you do?", and New Zealand's Tahatū site explains the common "Tell me about a time when you…" question.

A good answer shows that you listen, agree a plan and speak up early. A toolbox talk (a short safety meeting before work starts) is a natural example on a building site.

For a chef, a simple answer could be: "On a busy night the kitchen hand was off sick. I told the head chef straight away, and we agreed I would wash pans between orders on my section. I kept my tickets moving and the pass never waited for my plates."

Use your own CV to find your examples

Your best answers come from jobs you have done. The Australian Government's advice is to re-read your resume and write down examples you can use. Write one real example for each of the five types. If your CV only lists job titles, add the main tasks first. Build AI CV can help you set out your trade tasks clearly, so your CV and your answers tell the same story.

Find the guide for your trade

The five types work in every trade, but the details change. Start from our trade pages to find practice for your own trade.

If you weld, our welder interview questions and answers show the same answer order with joints, positions, fume and fire.

Some interviews include a practical part. New Zealand's government careers site lists job task tests, such as welding, among the tests at interviews.

Common mistakes with technical questions

• Saying "we" all the time. Say "I checked", "I replaced", "I tested".
• Answering a question you did not understand. Tahatū says you can ask for a question to be explained or repeated, and Job Bank says clarifying is better than answering the wrong question.
• Safety at the end, or only PPE. Put isolation and hazard checks at the start of your steps.
• Long speeches. Tahatū advises keeping answers brief and to the point.
• A memorised script. The National Careers Service warns against sounding too rehearsed. Learn the order, not the exact words.

Practise out loud before the day

You need to hear yourself say the trade words in English. The Australian Government's advice is to practise your answers with someone you trust, and VETASSESS suggests asking a friend or family member to ask you questions about your occupation.

You can also practise alone. In our Skills Practice section, an interviewer asks a question on video, you answer out loud, and you get a score from 0 to 10 with what you did well, what to add and a stronger answer. The marking does not take marks off for your accent, small grammar mistakes or simple words. When you are ready, try a full mock interview.

Rules and requirements can change. Check the official government website before you act.

Frequently asked questions

Which technical questions come up in a trade job interview?

It changes from one workplace to the next, so nobody can give you the exact list. Most technical questions still fit five types: a job step by step, tools, safety, a fault you fixed and teamwork.

How long should a technical answer be?

Short enough that the interviewer can follow every step. Say the job, give the main steps, add the safety step and say how you check the work, then stop. The interviewer will ask for more if they want it.

What should I say if I do not know the answer?

Be honest and show how you would find out. A simple answer could be: "I have not done that job myself. I would read the manufacturer's instructions and ask my supervisor before I start."

Is a job interview the same as a skills assessment technical interview?

No. A job interview is with an employer who wants to hire someone. In Australia, a skills assessment technical interview is part of an official assessment, done by an assessor who is also a qualified tradesperson in your occupation, and it is held in English without an interpreter.

Will I have to do a practical test as well?

Some interviews include one, such as a job task test. Canada's Job Bank says that when someone contacts you to set up the interview, you can ask whether there will be a test and how many people will be at the interview.

Key takeaways

• Most technical questions fit five types: a job step by step, tools, safety, a fault you fixed and teamwork.
• Answer in the same order every time: name the job, give the steps, add safety where it belongs, say how you check.
• Use STAR and "I" for questions about something you did in the past.
• Start safety answers with removing or reducing the danger, not only PPE.