Energy, utilities, nuclear, mining, and natural resources
Power-plant operator practice questions
Suite 139 · apt-139-power-plant-operator. Published A4A vertical slice with guided, mini, full, and reserve banks.
Official sourcesVerification pending
About this practice suite
This suite prepares candidates for power-plant operator selection in the energy, utilities, nuclear, mining, and natural resources sector with 5 skill areas: technical reasoning, numerical reasoning, safety judgment, situational judgment and attention and concentration. Every question was written by Novus editors for this suite (none are taken from live or leaked exams), and the full bank holds 52 scored questions across three modes, plus 8 reserve questions used to vary repeat attempts. Answer keys never ship to the browser: your answers are scored server-side, and results stay on your device.
Skills this suite practises
- Technical reasoning: Applied technical principles, diagrams, tools, systems, measurements, and troubleshooting.
- Numerical reasoning: Arithmetic, fractions, percentages, ratios, rates, estimation, word problems, and number relationships.
- Safety judgment: Hazard recognition, safe sequencing, escalation, and risk controls.
- Situational judgment: Evaluating workplace responses against role-relevant principles.
- Attention and concentration: Sustained focus, selective attention, and accuracy under time pressure.
Sample questions from the guided bank
Two of the 10 guided-practice questions, shown exactly as they appear in a session. Answers and explanations are not printed here, because keys stay on the server. Open guided practice to answer them and see how you did.
A power-plant operator's primary duty is to:
- A. Bypass trips casually
- B. Ignore alarms to keep output high
- C. Monitor and control plant systems safely within approved limits
- D. Rewrite procedures mid-shift alone
A high-priority alarm clears then returns repeatedly. What is best?
- A. Leave board unattended
- B. Silence permanently
- C. Assume nuisance forever
- D. Treat as real; investigate cause and follow alarm response procedure
Practice modes and timing
Guided practice is untimed-feeling and instructional; the mini-test is a short timed check; the full simulation mirrors a complete sitting. All three draw on separate question sets, so moving up a mode never repeats what you practised.
| Mode | Questions | Duration | Start |
|---|---|---|---|
| Guided practice | 10 | 15 minutes | Open |
| Timed mini-test | 12 | 18 minutes | Open |
| Full simulation | 30 | 45 minutes | Open |
Study outline
Read the study outline for this suite’s skills, timings, and recommended lessons on one printable page, or take the full study guide away as a PDF, a spreadsheet, plain text, or HTML. Each download contains every skill’s complete lesson, not a list of links.
- Download full study guide (HTML) Opens in any browser, works offline.
- Download full study guide (PDF) Paginated, print-ready, opens anywhere.
- Download full study guide (CSV (spreadsheet)) Opens in a spreadsheet, one row per item.
- Download full study guide (Plain text) Plain text for notes apps and screen readers.