Radiation Protection 2 Exam JP

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About this app

A study app for Japan's Class 2 Radiation Protection Supervisor exam (第2種放射線取扱主任者試験). This national qualification is based on the Act on the Regulation of Radioisotopes; a Class 2 supervisor can be appointed at facilities that use sealed radioisotopes, but not radiation generating equipment or unsealed sources. All 500 practice questions come with a clear explanation.

■ Subjects Covered (500 questions across 5 subjects, 10 areas)

【Law - Regulations on the prevention of radiation hazards (30 questions in the exam)】
• Purpose, definitions, licensing and notification (40)
• Facility standards, use, storage, transport and disposal (40)
• Measurement, dose limits, controlled areas, training, health checks (40)
• Supervisors, safety regulations, records, security, penalties (30)

【Practice - Technical standards for handling radioisotopes (10 questions)】
• Sealed sources and facility safety management (60)
• Radiation measurement (55)
• Accident response (35)

【Physics, Chemistry and Biology (10 questions each)】
• Radiation physics (70) - atoms and nuclei, decay modes, interaction with matter, attenuation and shielding
• Radiochemistry (65) - isotopes and nuclear reactions, radioactive equilibrium, separation, tracer applications
• Radiation biology (65) - DNA damage and repair, effects on cells and the individual, radiation protection

The Class 2 exam is held once a year on a single day in late August, with 70 multiple-choice questions in total: 30 on law, 10 on practice, and 10 each on physics, chemistry and biology. To pass you need at least 50% in every subject and at least 60% overall. A single subject below the halfway mark fails the whole exam, so you need to secure the heavily weighted law section while still leaving no gaps in the smaller subjects. This app records your accuracy per area automatically, so you can see exactly which areas are still under the line.

Law accounts for over 40% of the paper and rewards accurate recall of provisions and figures, making it the most reliable place to score. This app splits Law into four areas and Practice into three, so you can drill the easily confused figures and procedures - facility standards, dose limits, record-keeping and reporting deadlines - area by area. After passing the exam, the licence is issued once you complete a training course at an institution registered with the Nuclear Regulation Authority. There are no eligibility requirements: anyone can sit the exam regardless of education or work experience.

■ Study Modes
• Random practice (10 / 25 / 50 / 100 questions)
• Study by subject
• All questions in order (resume supported)
• Review incorrect answers
• Bookmarks and unanswered questions

■ Progress Tracking
• Automatic tracking of correct answer rate
• Area-by-area performance overview - essential when each subject has its own minimum score

Works completely offline - study anytime, anywhere.

■ Reference Sources
• https://www.nustec.or.jp/ (Nuclear Safety Technology Center)
• https://www.nra.go.jp/ (Nuclear Regulation Authority)

※ This app is an independent study tool and is not affiliated with any examination body. Content is based on the general scope of the exam and may differ from the actual exam due to legal updates.