丙種化学(液化石油ガス)責任者 マニアックン

From the articles of the Liquefied Petroleum Gas Regulations to the physical properties and calculation formulas of LP gas. This resource covers the three subjects of the Class C Chemical (Liquefied Petroleum Gas) Supervisor exam with 48 articles and 288 multiple-choice questions. This is an in-house production, unrelated to KHK. One-time purchase; no ads.

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1 Oct 2026launched 6 days ago
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This is a study app for the Class C Chemical (Liquefied Petroleum Gas) Supervisor Examination. [Caution] This app does not represent the government, the Ministry of Economy, Trade and Industry, or any other administrative agencies. It is an unofficial app produced by our company. It is not affiliated with, approved by, endorsed by, or supervised by the High Pressure Gas Safety Association (KHK). It does not guarantee passing or scoring. Sources of administrative information are listed below under "■ Sources of Information." The Class C Chemical (Liquefied Petroleum Gas) Supervisor is one of the manufacturing safety supervisor licenses based on the High Pressure Gas Safety Act, responsible for safety related to the manufacturing of liquefied petroleum gas (LP gas). The exam consists of three subjects: laws and regulations, safety management technology, and academic knowledge. ■ How to Learn For each topic, read the explanation article and diagram, then solve the 6 multiple-choice practice questions on that topic. If you get it wrong, return to the article. The explanations include the relevant articles and materials, and for many questions, the heading to return to is also included, so you only need to reread that heading. The answer choices include similar options selected based on differences in subject, numerical value, unit, and exceptions, while the academic section focuses on questions about formula selection and conversion. The four-choice format is a unique format for checking understanding and is not a reproduction of the actual exam questions or answer choices. ■ Contents - 48 articles and 48 diagrams. There is one article and one diagram for each topic: 22 laws and regulations, 15 safety management techniques, and 11 academic knowledge topics. - 288 review drills. There are 6 multiple-choice questions for each topic, broken down as follows: 132 laws and regulations, 90 safety management techniques, and 66 academic knowledge questions. - 60 mock exam questions. Just like the actual exam, 20 questions each from laws and regulations, safety management techniques, and academic knowledge are selected from the 288 questions. The actual exam has different time slots for each subject, but the mock exam covers all three subjects in one go. If you are timing yourself, the total time is 270 minutes (the sum of the time limits for each subject). - Weakness review. Incorrect answers will be resubmitted after 1 day, then 3 days, then 7 days. If you make another mistake along the way, you will return to the 1-day resubmission. ■ Scope of Coverage [Laws and Regulations] Purpose of the Law, Definition of High-Pressure Gas, Application Boundaries of the Liquefied Petroleum Gas Regulations / Calculation of Processing Capacity and Classification of Type 1 and Type 2 Manufacturers / Manufacturing Permits, Notifications, Disqualifications, Succession, Commencement and Decommissioning / Location, Safety Distance, and Layout of Manufacturing Facilities / Materials, Foundations, Strength, Pressure Resistance, Airtightness, and Earthquake Resistance / Explosion Prevention, Leak Detection, Static Electricity, Fire Prevention and Extinguishing, and Emergency Equipment / Manufacturing Methods, Filling, Abnormality Inspection, and Repair / Liquefied Petroleum Gas Stations and Mobile Manufacturing Equipment / Technical Standards for Type 2 Manufacturers and Other Manufacturers / Changes and Minor Changes to Facilities, Gas Types, and Manufacturing Methods Changes / Storage Methods and Type 1 & Type 2 Storage Facilities / Completion Inspection and Conditions for Commencement of Use / Sales Notification, Public Awareness, Sales Methods, Sales Supervisor / Import, Movement, Specific Consumption, Disposal / Container Inspection, Marking, Filling, Re-inspection / Hazard Prevention Regulations and Safety Education / Safety Organization, Appointment Requirements, Licenses, and Experience / Duties, Training, Substitutes, and Dismissal Orders of Safety Officers / Safety Inspections and Periodic Self-Inspections / Hazardous Measures, Fire Restrictions, Accident Reporting / Administrative Supervision, Record Keeping, Reporting, and Certification Entry Point / Violations, Penalties, Joint Punishment Provisions, and Fines [Safety Management Technology] L Properties and phase changes of P gas, hazards / Equipment flow for receiving, storage, transfer, and filling / Facility layout, safety distance, barriers, and flow prevention / Storage tank system, foundation, settlement, and cryogenic equipment / Material selection, corrosion, and deterioration management / Pressure resistance, airtightness, strength, and seismic performance / Manufacturing standards for aerosols, etc. / Safe operation of piping, fittings, and valves / Liquid level management, overfill prevention, and container storage / Pressure gauges, safety valves, rupture discs, and emergency shutoff / Preventing stagnation, leak detection, explosion prevention, and static electricity / Heat resistance, cooling, fire prevention, and measures and notification for power outages, etc. / Depending on the equipment configuration Abnormal Inspection/Repair/Cleaning Planning, Isolation, and Restoration Confirmation / Initial Response and Reporting in Case of Leaks and Fires [Academic Knowledge] Molecular Formulas and Substance Identification of LPG Main Components / Conversion of Molecular Weight, Density, and Gas-Liquid Volume / Phase Change, Boiling Point, and Vapor Pressure / Storage Capacity Determined from Liquid Density and Internal Volume / Combustion Mass Balance, Calorific Value, and Combustion Range / Processing Capacity Formulas Q1-Q4 / Processing Capacity Formulas Q5-Q10 / Material Selection and Piping Usage Conditions / Judgment Factors for Strength Design / Pressure Conditions for Pressure Resistance Tests and Airtightness Tests / Overpressure Recovery Criteria for High-Pressure Gas Equipment and Pipelines ■ Free Trial Scope Three explanatory articles ("Purpose of the Law, Definition of High-Pressure Gas, and Application Boundaries of the Liquefied Petroleum Gas Law," "Properties and Phase Changes/Hazards of LP Gas," and "Molecular Formulas and Substance Identification of LPG Main Components") and their 18 practice drill questions are available for free, including answers and explanations, even before purchase. ■ Fees There are no charges for downloading or using the free scope. The only charge is for unlocking all learning materials once (in-app purchase, one-time purchase). Please check the price on the store's purchase screen. This app does not have monthly fees, advertisements, or additional charges. If you change devices, you can restore your purchases using "Restore Purchases." There is no charge for restoration, and there is no limit to the number of times you can do so. ■ How the Learning Materials Were Created We only read the original texts of laws and regulations in effect on the legal reference date of the exam (April 1, 2026) (e-Gov Law Search: High Pressure Gas Safety Act, Enforcement Order, Liquefied Petroleum Gas Safety Regulations, Container Safety Regulations, Regulations Concerning the High Pressure Gas Manufacturing Safety Officer Examination, etc., based on the High Pressure Gas Safety Act), and publicly available materials from public institutions such as the Certified Reference Material SDS from the National Institute of Advanced Industrial Science and Technology (AIST) and physical property data from JOGMEC. Articles, diagrams, and questions were newly written from these sources. We did not consult past exam questions, commercially available textbooks, or preparation websites. The KHK exam and course guides were used only to confirm the exam date, subjects, number of questions, time, format, eligibility requirements, passing criteria, and exemptions. AI does not operate within the app itself. It was used in the development process. A draft was created using AI, and another AI, with the answers concealed, was used to solve all 288 questions to ensure the answers were consistent. Article numbers and numerical values ​​were cross-referenced with the original legal text and official documents. There is no supervisor (neither a qualified professional nor a practitioner). The AI ​​draft and audit are not supervised by qualified professionals or practitioners. ■ Information Sources (Information sources publicly available from the government, etc.) ・e-Gov Law Search (Digital Agency) High Pressure Gas Safety Act https://laws.e-gov.go.jp/law/326AC0000000204 ・e-Gov Law Search (Digital Agency) Liquefied Petroleum Gas Safety Regulations https://laws.e-gov.go.jp/law/341M50000400052 ・e-Gov Law Regulations Concerning the Examination for High Pressure Gas Manufacturing Safety Officers Based on the High Pressure Gas Safety Act https://laws.e-gov.go.jp/law/341M50000400054 ・High Pressure Gas Safety Association "FY2026 Examination Guide" (Confirmation of examination format and passing criteria) https://www.khk.or.jp/Portals/0/khk/exam/2026/R8FY_exam_seizouhanbai_%20rev.pdf ■ Information about the Exam (Confirmed in the 2026 Exam Guide - September 15, 2026) * Laws and Regulations: 20 multiple-choice questions, 60 minutes / Safety Management Technology: 20 multiple-choice questions, 90 minutes / Academic Knowledge: 20 multiple-choice questions, 120 minutes. Each subject has a different time slot. * The number of choices in the actual exam is not indicated in the exam guide (the app's 4-choice format is unique). * The passing guide states that "approximately 60 percent of the perfect score for each subject" is a guideline for passing. The results of the mock exam are merely a learning guideline and do not guarantee a fixed number of correct answers or passing. * There are no restrictions on age, education level, gender, or experience for taking the exam in 2026. * If you have a certificate of completion for the Class C Chemical Liquefied Petroleum Gas Training Course, you can apply for an exemption from Safety Management Technology and Academic Knowledge (if you receive the exemption, you will only take the Laws and Regulations exam). Please check the current year's exam guide for eligibility for exemption and required documents. This app includes all three subjects, regardless of whether you have an exemption or not. * The exam date is November 8, 2026. The legal reference date is April 1, 2026. Some items change annually. Please refer to the KHK exam guide before applying. ■ Usability * Articles, diagrams, and questions are all within the app, so you can study even offline. Internet access is only required for purchase and "Restore Purchases." * Font size is available in three levels: standard, large, and extra-large. * No account or login is required. Answer history, reading status, and review schedules are only stored on your device. When changing devices, you can transfer your data using the export/import function in the settings screen. ■ Notes * The following are excluded from the scope of academic knowledge: General theory and calculations within academic knowledge that are not directly shown in the official primary sources on which this app is based. This app covers state calculations using Boyle's Law and Charles's Law, the ideal gas law and partial pressures, heat calculations for heating and cooling using specific heat, fluid pressure loss, heat transfer, stress and strain calculations and wall thickness formulas, the operating principles of measuring instruments, and the theories of corrosion and welding. It also covers conversions in the processing capacity formula of the liquefied petroleum gas law, comparisons of total heat generation and molecular weight as shown in JOGMEC's ​​physical property tables, and legal requirements regarding materials, corrosion prevention, strength, and pressure gauges. While general theory may be related to the subject "Ordinary Applied Chemistry and Basic Mechanical Engineering," it is not covered in this app; therefore, please supplement your learning with other resources as needed. * In addition, the following are excluded: reproduction or rephrasing of past exam questions, sample answers, problem sets, and study materials; reproduction of the number of choices, frequency of questions, point distribution, and scoring method of the actual exam; calculations that unconditionally extrapolate the physical properties of a single component to commercially available mixed LP gas; specific values, formulas, tables, and procedures of METI example standards; numerical values, manufacturer-specific structures, and fault diagnosis based on empirical rules found only in the text of private standards; on-site procedures for repair, gas replacement, leak treatment, fire extinguishing, and restart; and permits, notifications, appointments, inspections, and administrative judgments for individual cases. * Passing the exam and obtaining a license are separate from being appointed as a safety officer at a business establishment. This app does not handle the determination of whether an appointment is necessary at an individual business establishment or the assessment of required manufacturing experience. * The study materials are based on laws and regulations as of April 1, 2026, and may differ from the actual situation due to revisions. Please check the implementation guidelines and scope of questions in the announcements of the examination administering body. * This app does not represent the government or administrative agencies. This is a learning support app independently produced by our company, and is not an official educational material approved, recommended, or supervised by the High Pressure Gas Safety Association (KHK). *We do not guarantee passing the exam, achieving a high score, or achieving effective learning results. Produced and sold by: PURPLE MAX Co., Ltd. (Fukuoka)Read more
This is a study app for the Class C Chemical (Liquefied Petroleum Gas) Supervisor Examination. [Caution] This app does not represent the government, the Ministry of Economy, Trade and Industry, or any other administrative agencies. It is an unofficial app produced by our company. It is not affiliated with, approved by, endorsed by, or supervised by the High Pressure Gas Safety Association (KHK). It does not guarantee passing or scoring. Sources of administrative information are listed below under "■ Sources of Information." The Class C Chemical (Liquefied Petroleum Gas) Supervisor is one of the manufacturing safety supervisor licenses based on the High Pressure Gas Safety Act, responsible for safety related to the manufacturing of liquefied petroleum gas (LP gas). The exam consists of three subjects: laws and regulations, safety management technology, and academic knowledge. ■ How to Learn For each topic, read the explanation article and diagram, then solve the 6 multiple-choice practice questions on that topic. If you get it wrong, return to the article. The explanations include the relevant articles and materials, and for many questions, the heading to return to is also included, so you only need to reread that heading. The answer choices include similar options selected based on differences in subject, numerical value, unit, and exceptions, while the academic section focuses on questions about formula selection and conversion. The four-choice format is a unique format for checking understanding and is not a reproduction of the actual exam questions or answer choices. ■ Contents - 48 articles and 48 diagrams. There is one article and one diagram for each topic: 22 laws and regulations, 15 safety management techniques, and 11 academic knowledge topics. - 288 review drills. There are 6 multiple-choice questions for each topic, broken down as follows: 132 laws and regulations, 90 safety management techniques, and 66 academic knowledge questions. - 60 mock exam questions. Just like the actual exam, 20 questions each from laws and regulations, safety management techniques, and academic knowledge are selected from the 288 questions. The actual exam has different time slots for each subject, but the mock exam covers all three subjects in one go. If you are timing yourself, the total time is 270 minutes (the sum of the time limits for each subject). - Weakness review. Incorrect answers will be resubmitted after 1 day, then 3 days, then 7 days. If you make another mistake along the way, you will return to the 1-day resubmission. ■ Scope of Coverage [Laws and Regulations] Purpose of the Law, Definition of High-Pressure Gas, Application Boundaries of the Liquefied Petroleum Gas Regulations / Calculation of Processing Capacity and Classification of Type 1 and Type 2 Manufacturers / Manufacturing Permits, Notifications, Disqualifications, Succession, Commencement and Decommissioning / Location, Safety Distance, and Layout of Manufacturing Facilities / Materials, Foundations, Strength, Pressure Resistance, Airtightness, and Earthquake Resistance / Explosion Prevention, Leak Detection, Static Electricity, Fire Prevention and Extinguishing, and Emergency Equipment / Manufacturing Methods, Filling, Abnormality Inspection, and Repair / Liquefied Petroleum Gas Stations and Mobile Manufacturing Equipment / Technical Standards for Type 2 Manufacturers and Other Manufacturers / Changes and Minor Changes to Facilities, Gas Types, and Manufacturing Methods Changes / Storage Methods and Type 1 & Type 2 Storage Facilities / Completion Inspection and Conditions for Commencement of Use / Sales Notification, Public Awareness, Sales Methods, Sales Supervisor / Import, Movement, Specific Consumption, Disposal / Container Inspection, Marking, Filling, Re-inspection / Hazard Prevention Regulations and Safety Education / Safety Organization, Appointment Requirements, Licenses, and Experience / Duties, Training, Substitutes, and Dismissal Orders of Safety Officers / Safety Inspections and Periodic Self-Inspections / Hazardous Measures, Fire Restrictions, Accident Reporting / Administrative Supervision, Record Keeping, Reporting, and Certification Entry Point / Violations, Penalties, Joint Punishment Provisions, and Fines [Safety Management Technology] L Properties and phase changes of P gas, hazards / Equipment flow for receiving, storage, transfer, and filling / Facility layout, safety distance, barriers, and flow prevention / Storage tank system, foundation, settlement, and cryogenic equipment / Material selection, corrosion, and deterioration management / Pressure resistance, airtightness, strength, and seismic performance / Manufacturing standards for aerosols, etc. / Safe operation of piping, fittings, and valves / Liquid level management, overfill prevention, and container storage / Pressure gauges, safety valves, rupture discs, and emergency shutoff / Preventing stagnation, leak detection, explosion prevention, and static electricity / Heat resistance, cooling, fire prevention, and measures and notification for power outages, etc. / Depending on the equipment configuration Abnormal Inspection/Repair/Cleaning Planning, Isolation, and Restoration Confirmation / Initial Response and Reporting in Case of Leaks and Fires [Academic Knowledge] Molecular Formulas and Substance Identification of LPG Main Components / Conversion of Molecular Weight, Density, and Gas-Liquid Volume / Phase Change, Boiling Point, and Vapor Pressure / Storage Capacity Determined from Liquid Density and Internal Volume / Combustion Mass Balance, Calorific Value, and Combustion Range / Processing Capacity Formulas Q1-Q4 / Processing Capacity Formulas Q5-Q10 / Material Selection and Piping Usage Conditions / Judgment Factors for Strength Design / Pressure Conditions for Pressure Resistance Tests and Airtightness Tests / Overpressure Recovery Criteria for High-Pressure Gas Equipment and Pipelines ■ Free Trial Scope Three explanatory articles ("Purpose of the Law, Definition of High-Pressure Gas, and Application Boundaries of the Liquefied Petroleum Gas Law," "Properties and Phase Changes/Hazards of LP Gas," and "Molecular Formulas and Substance Identification of LPG Main Components") and their 18 practice drill questions are available for free, including answers and explanations, even before purchase. ■ Fees There are no charges for downloading or using the free scope. The only charge is for unlocking all learning materials once (in-app purchase, one-time purchase). Please check the price on the store's purchase screen. This app does not have monthly fees, advertisements, or additional charges. If you change devices, you can restore your purchases using "Restore Purchases." There is no charge for restoration, and there is no limit to the number of times you can do so. ■ How the Learning Materials Were Created We only read the original texts of laws and regulations in effect on the legal reference date of the exam (April 1, 2026) (e-Gov Law Search: High Pressure Gas Safety Act, Enforcement Order, Liquefied Petroleum Gas Safety Regulations, Container Safety Regulations, Regulations Concerning the High Pressure Gas Manufacturing Safety Officer Examination, etc., based on the High Pressure Gas Safety Act), and publicly available materials from public institutions such as the Certified Reference Material SDS from the National Institute of Advanced Industrial Science and Technology (AIST) and physical property data from JOGMEC. Articles, diagrams, and questions were newly written from these sources. We did not consult past exam questions, commercially available textbooks, or preparation websites. The KHK exam and course guides were used only to confirm the exam date, subjects, number of questions, time, format, eligibility requirements, passing criteria, and exemptions. AI does not operate within the app itself. It was used in the development process. A draft was created using AI, and another AI, with the answers concealed, was used to solve all 288 questions to ensure the answers were consistent. Article numbers and numerical values ​​were cross-referenced with the original legal text and official documents. There is no supervisor (neither a qualified professional nor a practitioner). The AI ​​draft and audit are not supervised by qualified professionals or practitioners. ■ Information Sources (Information sources publicly available from the government, etc.) ・e-Gov Law Search (Digital Agency) High Pressure Gas Safety Act https://laws.e-gov.go.jp/law/326AC0000000204 ・e-Gov Law Search (Digital Agency) Liquefied Petroleum Gas Safety Regulations https://laws.e-gov.go.jp/law/341M50000400052 ・e-Gov Law Regulations Concerning the Examination for High Pressure Gas Manufacturing Safety Officers Based on the High Pressure Gas Safety Act https://laws.e-gov.go.jp/law/341M50000400054 ・High Pressure Gas Safety Association "FY2026 Examination Guide" (Confirmation of examination format and passing criteria) https://www.khk.or.jp/Portals/0/khk/exam/2026/R8FY_exam_seizouhanbai_%20rev.pdf ■ Information about the Exam (Confirmed in the 2026 Exam Guide - September 15, 2026) * Laws and Regulations: 20 multiple-choice questions, 60 minutes / Safety Management Technology: 20 multiple-choice questions, 90 minutes / Academic Knowledge: 20 multiple-choice questions, 120 minutes. Each subject has a different time slot. * The number of choices in the actual exam is not indicated in the exam guide (the app's 4-choice format is unique). * The passing guide states that "approximately 60 percent of the perfect score for each subject" is a guideline for passing. The results of the mock exam are merely a learning guideline and do not guarantee a fixed number of correct answers or passing. * There are no restrictions on age, education level, gender, or experience for taking the exam in 2026. * If you have a certificate of completion for the Class C Chemical Liquefied Petroleum Gas Training Course, you can apply for an exemption from Safety Management Technology and Academic Knowledge (if you receive the exemption, you will only take the Laws and Regulations exam). Please check the current year's exam guide for eligibility for exemption and required documents. This app includes all three subjects, regardless of whether you have an exemption or not. * The exam date is November 8, 2026. The legal reference date is April 1, 2026. Some items change annually. Please refer to the KHK exam guide before applying. ■ Usability * Articles, diagrams, and questions are all within the app, so you can study even offline. Internet access is only required for purchase and "Restore Purchases." * Font size is available in three levels: standard, large, and extra-large. * No account or login is required. Answer history, reading status, and review schedules are only stored on your device. When changing devices, you can transfer your data using the export/import function in the settings screen. ■ Notes * The following are excluded from the scope of academic knowledge: General theory and calculations within academic knowledge that are not directly shown in the official primary sources on which this app is based. This app covers state calculations using Boyle's Law and Charles's Law, the ideal gas law and partial pressures, heat calculations for heating and cooling using specific heat, fluid pressure loss, heat transfer, stress and strain calculations and wall thickness formulas, the operating principles of measuring instruments, and the theories of corrosion and welding. It also covers conversions in the processing capacity formula of the liquefied petroleum gas law, comparisons of total heat generation and molecular weight as shown in JOGMEC's ​​physical property tables, and legal requirements regarding materials, corrosion prevention, strength, and pressure gauges. While general theory may be related to the subject "Ordinary Applied Chemistry and Basic Mechanical Engineering," it is not covered in this app; therefore, please supplement your learning with other resources as needed. * In addition, the following are excluded: reproduction or rephrasing of past exam questions, sample answers, problem sets, and study materials; reproduction of the number of choices, frequency of questions, point distribution, and scoring method of the actual exam; calculations that unconditionally extrapolate the physical properties of a single component to commercially available mixed LP gas; specific values, formulas, tables, and procedures of METI example standards; numerical values, manufacturer-specific structures, and fault diagnosis based on empirical rules found only in the text of private standards; on-site procedures for repair, gas replacement, leak treatment, fire extinguishing, and restart; and permits, notifications, appointments, inspections, and administrative judgments for individual cases. * Passing the exam and obtaining a license are separate from being appointed as a safety officer at a business establishment. This app does not handle the determination of whether an appointment is necessary at an individual business establishment or the assessment of required manufacturing experience. * The study materials are based on laws and regulations as of April 1, 2026, and may differ from the actual situation due to revisions. Please check the implementation guidelines and scope of questions in the announcements of the examination administering body. * This app does not represent the government or administrative agencies. This is a learning support app independently produced by our company, and is not an official educational material approved, recommended, or supervised by the High Pressure Gas Safety Association (KHK). *We do not guarantee passing the exam, achieving a high score, or achieving effective learning results. Produced and sold by: PURPLE MAX Co., Ltd. (Fukuoka)

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  1. Version 1.0First seen · 1 Oct 2026

    初回リリースです。理解記事48本・図解48点・4択の確認ドリル288問・模擬試験(60問・3科目)を収録しています。無料でお試しいただける範囲があります。

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