Hazmat Class A Exam Prep JP

A study app for the Japan Dangerous Goods / Hazardous Materials Handler exam, Class A (危険物取扱者 甲種, "Kou"). Class A is the highest-level qualification, covering all categories of hazardous materials (Types 1-6). Study efficiently with practice questions and clear explanations across all subjects.

■ Subjects Covered
[Laws and Regulations]
• Definition and categories of hazardous materials (Types 1-6) and designated quantities
• Standards for manufacturing, storage, and handling facilities (location, structure, equipment)
• Permits, notifications, and inspection procedures
• Roles and duties of handlers, safety supervisors, and general safety managers
• Standards for storage, handling, transport, and conveyance
• Signs, notice boards, fire-extinguishing and alarm equipment
• Administrative dispositions (orders, permit revocation)

[Physics and Chemistry]
• States of matter, phase changes, specific gravity, vapor
• Heat and temperature, thermal expansion, static electricity
• Moles, chemical equations, concentration calculations
• Acids and bases, oxidation-reduction, electrochemistry
• Basics of inorganic and organic chemistry
• Three elements of combustion, flammable range, flash and ignition points
• Theory of fire extinguishing (removal, smothering, cooling, inhibition)

[Properties, Fire Prevention and Extinguishing — All Categories]
• Type 1: Oxidizing solids
• Type 2: Flammable solids
• Type 3: Pyrophoric and water-reactive substances
• Type 4: Flammable liquids
• Type 5: Self-reactive substances
• Type 6: Oxidizing liquids
• Common storage, handling, fire prevention and extinguishing for each category

■ 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
• Subject-by-subject performance overview

Works completely offline — study anytime, anywhere.

※ This app is an independent study tool and is not affiliated with any examination body (the Fire and Disaster Management Examination Center or the prefectural governments). Content is based on the general scope of the exam and may differ from the actual exam due to legal changes or syllabus updates.