サクッと危険物甲種 1問1答【サクトレ】
%E6%A0%AA%E5%BC%8F%E4%BC%9A%E7%A4%BEDecryption Education In-app purchases
Learn the laws, physical chemistry, and properties (Categories 1-6) of the Class A Hazardous Materials Handler certification through 938 multiple-choice questions.
- Price
- Free
- In-app purchases
- Updated
- Nov 12
- 2026 · v1.0.0
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About サクッと危険物甲種 1問1答【サクトレ】
This is a multiple-choice question-and-answer app specifically designed for preparing for the Class A Hazardous Materials Handler examination.
The Class A exam consists of 15 questions on "Laws and Regulations Concerning Hazardous Materials," 10 questions on "Physics and Chemistry," and 20 questions on "Properties of Hazardous Materials and Methods of Fire Prevention and Extinguishing." A score of 60% or higher is required in each subject. The scope covers all hazardous materials from Class 1 to Class 6. This app includes all three subjects, with 16 fields and 938 questions.
■ 16 Fields, 938 Questions
[Laws and Regulations]
- Definition and Designated Quantity of Hazardous Materials (56 questions)
- Classification, Location, Structure, and Equipment of Manufacturing Facilities, etc. (74 questions)
- Procedures such as Permits, Notifications, and Administrative Dispositions (49 questions)
- Hazardous Materials Handlers and Safety Systems (46 questions)
- Standards for Storage, Handling, Transportation, and Transfer (63 questions)
[Physics and Chemistry]
- Theory of Combustion and Fire Extinguishing (54 questions)
- Physics (Change of State, Heat, Gases, Electrostatics) (47 questions)
- Basics of Chemistry (Substances, Reaction Equations, Moles, Thermochemistry) (56 questions)
- Acids and Bases, Oxidation-Reduction, Metals, Organic Compounds (53 questions)
[Properties, Fire Prevention, and Fire Extinguishing]
- Overview of Properties and Fire Extinguishing by Class (38 questions)
- Class 1: Oxidizing Solids (70 questions)
- Class 2: Flammable Solids (71 questions)
- Class 3: Spontaneously Combustible Substances and Water-Reactive Substances (66 questions)
- Class 4 Flammable Liquids (74 questions)
• Class 5 Self-Reactive Substances (70 questions)
• Class 6 Oxidizing Liquids (51 questions)
The legal section covers topics such as multiples of designated quantities, safety distances, required open space, periodic inspections, and mixed transport, following the text of the law. The physics and chemistry sections include calculations of flammability ranges, gas laws, reaction equations and amounts of substance, thermochemistry, pH, and neutralization, with explanations of calculation problems similar to those asked in the Class A exam. The properties section broadly covers the properties, reactions, and fire extinguishing methods of representative items across all classes.
■ Learning Features
• Explanations for all questions
• Randomly selected questions and question list by subject area
• Choices are shuffled each time
• Answer history records mistakes, correct answers, and consecutive correct answers
• Font size can be changed
■ No Ads
■ Free to Start
The first three sections of each subject (definition and designated quantities of hazardous materials / theory of combustion and fire extinguishing / overview of properties and fire extinguishing for each class) are free. All other areas can be unlocked with a single purchase.
■ Please Note
This app is an unofficial learning app and is not affiliated with any public institution such as the Fire Service Examination Research Center. Please check the Fire Service Examination Research Center for the latest exam information.
■ Sakutore Series
"Sakutore" is a series of learning apps that allow you to quickly learn in your spare time. For hazardous materials preparation, there are also "Sakutore Hazardous Materials Class B 1 Question 1 Answer [Sakutore]" and "Sakutore Hazardous Materials Class B 1 Question 1 Answer [Sakutore]".
■ Terms of Use and Privacy Policy
https://sakutore.decryption.co.jp/terms/
https://sakutore.decryption.co.jp/privacy-policy/
The Class A exam consists of 15 questions on "Laws and Regulations Concerning Hazardous Materials," 10 questions on "Physics and Chemistry," and 20 questions on "Properties of Hazardous Materials and Methods of Fire Prevention and Extinguishing." A score of 60% or higher is required in each subject. The scope covers all hazardous materials from Class 1 to Class 6. This app includes all three subjects, with 16 fields and 938 questions.
■ 16 Fields, 938 Questions
[Laws and Regulations]
- Definition and Designated Quantity of Hazardous Materials (56 questions)
- Classification, Location, Structure, and Equipment of Manufacturing Facilities, etc. (74 questions)
- Procedures such as Permits, Notifications, and Administrative Dispositions (49 questions)
- Hazardous Materials Handlers and Safety Systems (46 questions)
- Standards for Storage, Handling, Transportation, and Transfer (63 questions)
[Physics and Chemistry]
- Theory of Combustion and Fire Extinguishing (54 questions)
- Physics (Change of State, Heat, Gases, Electrostatics) (47 questions)
- Basics of Chemistry (Substances, Reaction Equations, Moles, Thermochemistry) (56 questions)
- Acids and Bases, Oxidation-Reduction, Metals, Organic Compounds (53 questions)
[Properties, Fire Prevention, and Fire Extinguishing]
- Overview of Properties and Fire Extinguishing by Class (38 questions)
- Class 1: Oxidizing Solids (70 questions)
- Class 2: Flammable Solids (71 questions)
- Class 3: Spontaneously Combustible Substances and Water-Reactive Substances (66 questions)
- Class 4 Flammable Liquids (74 questions)
• Class 5 Self-Reactive Substances (70 questions)
• Class 6 Oxidizing Liquids (51 questions)
The legal section covers topics such as multiples of designated quantities, safety distances, required open space, periodic inspections, and mixed transport, following the text of the law. The physics and chemistry sections include calculations of flammability ranges, gas laws, reaction equations and amounts of substance, thermochemistry, pH, and neutralization, with explanations of calculation problems similar to those asked in the Class A exam. The properties section broadly covers the properties, reactions, and fire extinguishing methods of representative items across all classes.
■ Learning Features
• Explanations for all questions
• Randomly selected questions and question list by subject area
• Choices are shuffled each time
• Answer history records mistakes, correct answers, and consecutive correct answers
• Font size can be changed
■ No Ads
■ Free to Start
The first three sections of each subject (definition and designated quantities of hazardous materials / theory of combustion and fire extinguishing / overview of properties and fire extinguishing for each class) are free. All other areas can be unlocked with a single purchase.
■ Please Note
This app is an unofficial learning app and is not affiliated with any public institution such as the Fire Service Examination Research Center. Please check the Fire Service Examination Research Center for the latest exam information.
■ Sakutore Series
"Sakutore" is a series of learning apps that allow you to quickly learn in your spare time. For hazardous materials preparation, there are also "Sakutore Hazardous Materials Class B 1 Question 1 Answer [Sakutore]" and "Sakutore Hazardous Materials Class B 1 Question 1 Answer [Sakutore]".
■ Terms of Use and Privacy Policy
https://sakutore.decryption.co.jp/terms/
https://sakutore.decryption.co.jp/privacy-policy/
What’s new
Version 1.0.0 · Updated November 12, 2026
初回リリース