乙種機械責任者 マニアックン
This book uses diagrams to illustrate how compressor and valve failures can lead to accidents, and calculates adiabatic compression and pipe friction losses based on assumptions and units. It is an unofficial study material for Class B Mechanical Operators, with 288 review questions and no advertisements.
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This is a learning app for the Class B Mechanical Operator (High-Pressure Gas Manufacturing Safety Manager) examination. [Caution] This app does not represent the government, the Ministry of Economy, Trade and Industry, or any other administrative agency. It is an unofficial learning material independently created by PURPLE MAX Co., Ltd., and is not affiliated with, endorsed, or supervised by the High-Pressure Gas Safety Association (KHK), which administers the exam. It does not guarantee passing the exam or achieving a high score. Sources of laws and regulations are listed under "■ Sources of Information" below. The Class B Mechanical Operator license is one of the manufacturing safety manager licenses stipulated by the High-Pressure Gas Safety Act. The exam consists of three subjects: laws and regulations, safety management technology, and academic knowledge. Safety management technology and academic knowledge test knowledge of machinery necessary for the manufacture of high-pressure gases, excluding those used for refrigeration. This app presents safety management technology in a way that shows how malfunctions and abnormalities can lead to accidents, and academic knowledge requires checking the assumptions and units of formulas before calculations. ■ How to Learn Each topic is covered in three steps: read the explanatory article and diagram → solve 6 multiple-choice review questions → immediately reread the incorrect answers. After reading the explanation, you can return directly to the article on that topic. The multiple-choice questions are a unique format designed to check understanding and do not replicate the format of the actual exam questions or answer choices. ■ Contents ・48 explanatory articles and 48 diagrams: one for each topic (24 laws and regulations, 12 safety management technology, and 12 academic knowledge) ・288 review questions: all multiple-choice with 6 questions per topic (144 laws and regulations, 72 safety management technology, and 72 academic knowledge) ・50 mock exam questions: solve 20 laws and regulations, 15 safety management technology, and 15 academic knowledge questions in one go, just like in the actual exam (the actual exam is held at different times for each subject). The guideline for timing is a total of 270 minutes for each subject's time limit. * Weakness Review: Incorrect answers will be resubmitted after 1 day, 3 days, and 7 days. If you make another mistake along the way, you will start again from 1 day later. ■ Scope of Coverage [Laws and Regulations] Definition and Exemptions of High-Pressure Gases / Application Boundaries of General Rules, Liquefied Petroleum Gas Rules, and Combined Rules / Manufacturing Permits, Notifications, and Processing Capacity / Changes, Successions, Commencements, and Abolitions of Manufacturing Facilities / Storage Capacity and Class 1 and Class 2 Storage Facilities / Obligation to Observe Storage Methods and Facility Standards / Completion Inspections and When Use Can Be Commenced / Notification of Sales Business and Notification to Purchasers / Import Inspections and Pre-Acquisition Confirmations / Methods of Movement, Vehicles, and Supervisors / Consumption and Disposal of Specific High-Pressure Gases / Hazard Prevention Regulations and Safety Education Ledgers / Security Supervisors and Security Technical Managers / Security Officers, Security Supervisors, and Security Planning and Promotion Officers / Appointment Notifications, Agents, and Security Training / Scope, Frequency, and Route of Security Inspections / Periodic Self-Inspections, Supervision, and Record Keeping / Certification of Inspectors and Special Provisions for High-Level Security / Measures in Case of Hazard, Accident Reporting, and Administrative Supervision / Container Inspections, Marking, and Labeling / Filling Conditions, Container Re-inspections, and Accessory Re-inspections / Specific Equipment Inspections and Certification of Designated Equipment / Technical Standards and Safety Devices for Manufacturing Facilities / Technical Standards and Repair/Reprocessing of Manufacturing Methods Open [Safety Management Technology] The path from equipment failure to accident / Equipment damage due to temperature and pressure fluctuations / Corrosion and damage progressing under insulation / Hydrogen environment and material compatibility / Weaknesses of piping, hoses, and seals / Reading compressor and pump abnormalities / Valve failure and flow changes / Role and weaknesses of pressure relief equipment / Measurement abnormalities and interlocks / Heat exchange equipment and utility loss / Gas flow and ignition by static electricity / Maintenance and change management of safety functions [Academic Knowledge] Standardizing units of pressure, temperature, and work / Pressure, volume, and temperature of ideal gases / Specific heat and heat balance of heating and mixing / Ideal adiabatic compression and temperature rise / Compressor power and adiabatic efficiency / Two-stage compression and intercooling / Flow rate, flow velocity, and flow path area / Viscosity, Reynolds number, and pipe friction loss / Thermal conductivity and heat passing through walls and pipes / Relationship between heat transfer coefficient, area, and temperature difference / Strain and Young's modulus / Fatigue of repeated loads and creep at high temperatures These 48 topics are not the entire scope of the exam. The main areas not included are listed in the "Notes" section. ■ What you can read before purchasing Three articles ("Definition and Exemptions of High-Pressure Gases," "The Path from Equipment Failure to Accidents," and "Standardizing Units of Pressure, Temperature, and Work") and 18 practice questions can be read, including explanations, without purchase. ■ Pricing Installation and the free content are free. Only the in-app purchase (one-time purchase) to open the remaining study materials is charged, and the amount is displayed on the purchase screen. There are no recurring charges, advertisements, or additional purchases. If you change devices, you can reopen your purchases using "Restore Purchases" (free, no limit on the number of times). ■ How the study materials are created The basis is the original text of the law as of the legal reference date of the exam (April 1, 2026) and publicly available materials from public institutions such as the National Institute of Occupational Safety and Health, the National Institute of Advanced Industrial Science and Technology, the National Institute for Materials Science, and the Japan Atomic Energy Agency. The articles, diagrams, and questions were newly written by our company based on these sources. Past exam questions and other companies' study materials were not referenced. The KHK exam guide was used only to confirm the exam date, subjects, number of questions, time, eligibility requirements, and passing criteria. The AI was used for production and does not run within the app. The AI's drafts were matched with primary sources, and discrepancies were checked by having another AI solve questions with the correct answers hidden. There was no supervisor, and it was not reviewed by qualified professionals or practitioners. ■ About the Exam (Confirmed in the 2026 Exam Guide - September 30, 2026) - 20 questions on laws and regulations, 60 minutes; 15 questions on safety management technology, 90 minutes; 15 questions on academic knowledge, 120 minutes. The time slots are divided by subject. - The number of choices in the actual exam is not written in the exam guide (the app's 4-choice format is unique). - The passing criteria, as expressed in the exam guide, is "approximately 60 percent of the perfect score for each subject." The mock exam results are a guideline for learning and do not guarantee passing. - In 2026, there were no restrictions on taking the exam based on age, educational background, gender, or experience. Please check the application guidelines for the year you are taking the exam for the conditions regarding subject exemptions. * The exam date is November 8, 2026, and the legal reference date is April 1, 2026. * This may change from year to year. Please check the KHK exam guidelines before applying. ■ Usability * Articles, diagrams, and questions are included in the app, allowing you to study even in areas without a signal. Internet connection is only required for purchase and restoration. * Three font sizes are available. No account registration is required. Study records are saved on your device and can be transferred to another device via export/import in the settings screen. ■ Notes * This applies to the three subjects of the "Class B Machinery" category of the High Pressure Gas Manufacturing Safety Manager Examination. * This material does not systematically cover the following topics: regulations concerning manufacturing for refrigeration (this does not mean that refrigeration-related topics are excluded from legal subjects), grounds for disqualification from permits, details of technical standards and notifications not explained in the articles, structure for each type of equipment, compressor surging and shaft sealing, the basics of combustion and explosion and explosion-proof structures, general forms of thermodynamic laws, Bernoulli formula and pump head, stress from loads and design calculations for thin-walled containers, welding and non-destructive testing, heat transfer coefficient and radiation heat transfer, etc. Please see "What You Can Learn and What Is Not Covered" in the app for details. * Do not use values obtained from models such as ideal gases for actual equipment design values or operating conditions. This material does not cover the judgment of permits, notifications, and appointments for individual equipment, or on-site procedures. * This material is based on laws and regulations as of April 1, 2026, and may differ from actual regulations due to revisions. * This material is not created or supervised by KHK or government ministries. It does not guarantee learning outcomes or exam results. ■ Information Sources (Information sources publicly available to the public by the government, etc.) ・e-Gov Law Search (Digital Agency) High Pressure Gas Safety Act https://laws.e-gov.go.jp/law/326AC0000000204 ・Ibid. Enforcement Order of the High Pressure Gas Safety Act https://laws.e-gov.go.jp/law/409CO0000000020 ・Ibid. General High Pressure Gas Safety Regulations https://laws.e-gov.go.jp/law/341M50000400053 ・Ibid. Liquefied Petroleum Gas Safety Regulations https://laws.e-gov.go.jp/law/341M50000400052 ・Ibid. Petrochemical Complex Safety Regulations https://laws.e-gov.go.jp/law/361M50000400088 ・Ibid. Container Safety Regulations https://laws.e-gov.go.jp/law/341M50000400050 - Regulations concerning the examination of high-pressure gas manufacturing safety managers, etc., based on the High-Pressure Gas Safety Act https://laws.e-gov.go.jp/law/341M50000400054 - High-Pressure Gas Safety Association "FY2026 Manufacturing/Sales Examination" "Examination Guide" (Confirmation of Examination Information) https://www.khk.or.jp/Portals/0/khk/exam/2026/R8FY_exam_seizouhanbai_%20rev.pdf * National Institute of Occupational Safety and Health, "How to Conduct Risk Assessments, etc., for the Prevention of Process Accidents in Process Plants" https://www.jniosh.johas.go.jp/publication/doc/td/TD-No5_Rev2.pdf * National Institute of Occupational Safety and Health, "Electrostatic Discharge Safety Guidelines 2007" https://www.jniosh.johas.go.jp/publication/doc/tr/TR_No42.pdf * National Institute of Advanced Industrial Science and Technology, "What is the International System of Units (SI)?" https://unit.aist.go.jp/nmij/library/si-units/ * National Institute for Materials Science, "PoLyInfo HELP — "Recorded Physical Properties" https://polymer.nims.go.jp/PoLyInfo/guide/jp/property.html - Japan Atomic Energy Agency "Thermal Calculations for Steam Reforming Apparatus Gasification System" https://jopss.jaea.go.jp/pdfdata/JAEA-Research-2007-090.pdf Produced and sold by PURPLE MAX Co., Ltd. (Fukuoka).Read more
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- Version 1.0First seen · 5 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(50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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