Free practice test

Nuclear Reactor Operator Practice Test

Check what you know about the nuclear reactor operator job with 15 free questions and instant explanations.

Updated By the Career Education Institute Curriculum Team
About this practice test

15 multiple-choice questions on nuclear reactor operator knowledge, safety and vocabulary. Submit to see your score and explanations, or open any question’s answer as you go. Nothing is saved or shared.

Question 1 of 15A scram is:
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Answer: A rapid shutdown. It shuts down the reactor.

Question 2 of 15Control rods:
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Answer: Absorb neutrons. They control power.

Question 3 of 15ALARA means:
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Answer: As low as reasonably achievable. Minimize dose.

Question 4 of 15Three-way communication:
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Answer: Prevents errors. Repeat-backs confirm.

Question 5 of 15Who licenses operators?
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Answer: The NRC. The Nuclear Regulatory Commission.

Question 6 of 15Which term matches this definition: “As low as reasonably achievable radiation dose.”
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Answer: ALARA. ALARA: As low as reasonably achievable radiation dose.

Question 7 of 15What does “Reactor core” mean?
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Answer: Where fission occurs.. Reactor core: Where fission occurs.

Question 8 of 15Which term matches this definition: “A required test of equipment.”
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Answer: Surveillance test. Surveillance test: A required test of equipment.

Question 9 of 15What does “Simulator” mean?
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Answer: A control room replica for training.. Simulator: A control room replica for training.

Question 10 of 15Which term matches this definition: “Ongoing training and exams.”
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Answer: Requalification. Requalification: Ongoing training and exams.

Question 11 of 15What does “Scram” mean?
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Answer: Rapid reactor shutdown.. Scram: Rapid reactor shutdown.

Question 12 of 15Which term matches this definition: “A required equipment status.”
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Answer: Limiting condition for operation. Limiting condition for operation: A required equipment status.

Question 13 of 15What does “Fission” mean?
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Answer: Splitting atoms to release energy.. Fission: Splitting atoms to release energy.

Question 14 of 15Which term matches this definition: “A steady chain reaction.”
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Answer: Criticality. Criticality: A steady chain reaction.

Question 15 of 15What does “Containment” mean?
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Answer: The structure enclosing the reactor.. Containment: The structure enclosing the reactor.

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