20-Question Electrician Safety & Jobsite English Assessment

Page highlights

• 20 bilingual questions
• Safety, English, tools, and troubleshooting feedback
• A learning order based on weak areas

1. A portable tool has a damaged cord with an exposed conductor. What is the best first response?

Correct answer: 2. Stop using it, keep it out of service, and report it

Damaged electrical equipment should be removed from use and reported. A temporary wrap does not establish that it is safe.

1. Wrap it with tape and finish the task
2. Stop using it, keep it out of service, and report it
3. Use it only with dry gloves
4. Plug it into a different receptacle

2. Before work near exposed live parts, which statement best matches a safe default?

Correct answer: 2. De-energize unless an authorized exception and required protections apply

The safe default is to de-energize exposed live parts. Energized work requires specific justification, authorization, training, and protective practices.

1. Work live whenever the task is brief
2. De-energize unless an authorized exception and required protections apply
3. Ask a coworker to watch from a distance
4. Turn off the nearest wall switch

3. A disconnect is open, but the circuit has not been locked, tagged, or verified. How should it be treated?

Correct answer: 3. Energized until the required energy-control and verification steps are complete

Opening a switch alone does not establish an electrically safe work condition. Required lockout/tagout and verification steps still apply.

1. De-energized because the handle is open
2. Safe if the indicator lamp is off
3. Energized until the required energy-control and verification steps are complete
4. Safe for one quick measurement

4. You feel a tingling sensation from a metal appliance case. What should you do?

Correct answer: 3. Stop use, keep people away, isolate only if safe, and report it

Tingling can indicate a shock hazard. Do not repeat the contact test; stop use and follow the site reporting and isolation procedure.

1. Touch it again to confirm
2. Keep using it at a lower setting
3. Stop use, keep people away, isolate only if safe, and report it
4. Move it to a dry room and retry

5. Water is pooling beside energized equipment. What is the safest immediate choice?

Correct answer: 2. Keep clear, warn others, and have the hazard isolated through the approved procedure

Water can extend the shock hazard. Keep clear and use the site's approved isolation and reporting process rather than entering the area.

1. Step into the water and unplug the equipment
2. Keep clear, warn others, and have the hazard isolated through the approved procedure
3. Dry the floor while the equipment runs
4. Wear ordinary work gloves and move it

6. What does “Isolate the supply before removing the cover” mean?

Correct answer: 2. Control and disconnect the energy source before opening the equipment

On a jobsite, isolate the supply means disconnect and control the energy source according to the approved procedure.

1. Move the cover away from the supply
2. Control and disconnect the energy source before opening the equipment
3. Cover the supply with insulation
4. Ask another worker to remove the cover

7. A supervisor asks, “Can you confirm absence of voltage?” You have not tested yet. What is the best reply?

Correct answer: 3. Not yet. I need to follow the procedure and verify with suitable test equipment

The reply states the evidence gap clearly and names the next safe action without pretending the circuit has been verified.

1. Yes, the switch is off
2. Probably; the indicator is dark
3. Not yet. I need to follow the procedure and verify with suitable test equipment
4. It was safe yesterday

8. What does “The breaker keeps tripping” report?

Correct answer: 2. The breaker opens repeatedly instead of staying reset

Keeps tripping describes repeated protective operation. It is a symptom to investigate, not a reason to force repeated resets.

1. The breaker does not fit the panel
2. The breaker opens repeatedly instead of staying reset
3. The breaker handle is difficult to reach
4. The breaker label is missing

9. Which sentence best asks for clarification about the task boundary?

Correct answer: 1. Which circuit is included in this work scope?

Work scope is standard language for the defined boundary of a task. Naming the circuit makes the clarification specific.

1. Which circuit is included in this work scope?
2. Can I finish it however I want?
3. Is all electricity the same?
4. Who used this tool last?

10. Which report is clearest and safest?

Correct answer: 3. The plug became unusually warm, so I stopped using the equipment and reported it

A useful jobsite report states the observable symptom, the safe action already taken, and the reporting status.

1. The plug was weird, but I kept going
2. Something is wrong somewhere
3. The plug became unusually warm, so I stopped using the equipment and reported it
4. I think it will be fine later

11. What is the best description of a non-contact voltage tester?

Correct answer: 2. It is a screening tool whose indication must be interpreted within an approved verification method

A non-contact tester can help screen for voltage, but it is not a universal stand-alone proof that an electrical system is safe to touch.

1. It proves every conductor is de-energized
2. It is a screening tool whose indication must be interpreted within an approved verification method
3. It measures resistance precisely
4. It replaces lockout/tagout

12. When should continuity or resistance mode normally be used?

Correct answer: 2. After the circuit is isolated and verified de-energized according to the procedure

Resistance and continuity functions inject a test signal and are normally used on de-energized circuits after the required verification.

1. On an energized circuit to save time
2. After the circuit is isolated and verified de-energized according to the procedure
3. Only when the meter battery is low
4. Whenever a breaker is on

13. Before a multimeter measurement, what should be checked first?

Correct answer: 2. Meter and lead condition, rating, mode, and lead jacks for the intended measurement

The instrument must be suitable and correctly configured for the intended measurement before contact is made.

1. Only the screen brightness
2. Meter and lead condition, rating, mode, and lead jacks for the intended measurement
3. Whether the probes match the wire color
4. Whether the meter is the newest model

14. A plug-in receptacle tester shows an abnormal pattern. What does that result provide?

Correct answer: 1. A clue that needs safe follow-up, not a complete diagnosis

A simple tester pattern is evidence, but its coverage is limited. Treat it as a clue and follow the approved troubleshooting process.

1. A clue that needs safe follow-up, not a complete diagnosis
2. Permission to rewire immediately
3. Proof that every grounding path is correct
4. The exact location of every fault

15. Which statement about electrical PPE and insulated tools is correct?

Correct answer: 3. Selection, rating, condition, and required inspection must match the hazard and procedure

Appearance alone does not establish protection. Equipment must be appropriate, rated, inspected, and used within the required procedure.

1. Any rubber glove is sufficient
2. A tool is safe if its handle is red
3. Selection, rating, condition, and required inspection must match the hazard and procedure
4. PPE makes energized work the default

16. A breaker trips again immediately after reset. What is the best next step?

Correct answer: 3. Stop repeated resetting, make the situation safe, and investigate the cause within authorization

Repeated operation is fault evidence. Forcing, bypassing, or upsizing protection can create a more serious hazard.

1. Hold the handle in the on position
2. Install a larger breaker
3. Stop repeated resetting, make the situation safe, and investigate the cause within authorization
4. Bypass the breaker for a quick test

17. A lamp is off after its wall switch is opened. What can you safely conclude?

Correct answer: 2. The lamp is not operating, but conductors may still be energized and require verification

Load state is not proof of electrical state. Other conductors or unexpected feeds may still be energized.

1. Every conductor in the box is de-energized
2. The lamp is not operating, but conductors may still be energized and require verification
3. The neutral is safe to touch
4. The circuit no longer needs isolation

18. A connection flickers and feels unusually hot. Which response uses the symptom as evidence?

Correct answer: 3. Stop use, make it safe, report the heat and flicker, and inspect only within authorization

Heat and flicker can indicate a poor connection or arcing risk. Preserve the evidence and make the condition safe instead of manipulating it live.

1. Wiggle it while energized to find the position that works
2. Ignore it if the load still runs
3. Stop use, make it safe, report the heat and flicker, and inspect only within authorization
4. Increase the fuse rating

19. A correctly rated fuse is replaced and blows again. What should happen next?

Correct answer: 3. Stop replacing it repeatedly and investigate the underlying fault safely

A second operation confirms an unresolved fault symptom. Changing the protective rating can expose conductors or equipment to unsafe current.

1. Fit a higher-rated fuse
2. Bridge the fuse temporarily
3. Stop replacing it repeatedly and investigate the underlying fault safely
4. Try a different color of fuse

20. Which sequence best represents evidence-based troubleshooting?

Correct answer: 2. Observe → make safe → verify → test within authorization → conclude and document

A disciplined sequence separates observation from conclusion, controls risk before testing, and leaves a record another worker can evaluate.

1. Guess → replace parts → energize → ask what happened
2. Observe → make safe → verify → test within authorization → conclude and document
3. Reset repeatedly → bypass protection → compare heat
4. Start with the most expensive component

References

• OSHA 29 CFR 1910.333
• OSHA Energized & Deenergized Work
• OSHA Arc Flash — Lockout/Tagout
• CPSC Home Electrical Safety Checklist