API-936

The API 936 exam, focusing on inspection of pressure vessels, storage tanks, and piping systems, covers a broad range of topics. The main points can be grouped into several key areas:

I. Fundamentals of Inspection:

• Inspection Planning & Procedures: This includes understanding inspection planning requirements (based on codes and standards), developing inspection procedures, understanding risk-based inspection (RBI), and documenting inspection activities.
• Inspection Techniques: Knowledge of various inspection methods is crucial, such as visual inspection, dimensional measurements, non-destructive testing (NDT) methods (e.g., ultrasonic testing (UT), radiographic testing (RT), magnetic particle testing (MT), liquid penetrant testing (PT)), and their application based on material and defect type.
• Code and Standard Requirements: A thorough understanding of relevant codes and standards (like ASME Section VIII, API 650, API 653) is vital for determining acceptable levels of damage, repair procedures, and inspection frequency.
• Documentation & Reporting: Accurate and complete documentation of findings, including the use of inspection reports, data sheets, and other relevant forms, is essential.

II. Specific Equipment Inspection:

• Pressure Vessels: Inspection of pressure vessels includes understanding their construction, operation, potential failure modes, and inspection requirements specific to various types of pressure vessels.
• Storage Tanks: Inspectors need to know different types of storage tanks (e.g., aboveground, underground, floating roof), their construction, common deterioration mechanisms (e.g., corrosion, fatigue), and specific inspection procedures.
• Piping Systems: Inspection of piping systems covers understanding piping materials, construction, stress analysis, and common failure mechanisms (e.g., stress corrosion cracking, fatigue).

III. Materials & Metallurgy:

• Material Properties: Understanding the properties of various materials used in pressure vessels, storage tanks, and piping systems (e.g., carbon steel, stainless steel, alloys) and their susceptibility to different types of damage.
• Corrosion Mechanisms: Knowledge of different types of corrosion (e.g., uniform, pitting, crevice, stress corrosion cracking) and their impact on equipment integrity is essential.
• Material Degradation: Understanding the factors that contribute to material degradation (e.g., temperature, pressure, environmental conditions) and their effects on equipment lifespan.

IV. Repair and Maintenance:

• Repair Procedures: Knowing the acceptable repair methods for different types of damage, complying with applicable codes and standards.
• Welding and Fabrication: Basic understanding of welding processes and their effects on material properties.
• Preventive Maintenance: Understanding the importance of preventive maintenance programs in extending the life of equipment.

V. Safety:

• Safety Procedures: Adhering to safe work practices and procedures during inspections.
• Personal Protective Equipment (PPE): Knowledge of appropriate PPE for inspection activities.
• Hazard Identification and Risk Assessment: Understanding potential hazards associated with inspection activities and implementing appropriate control measures.

In summary, the API 936 exam tests a candidate's knowledge and practical skills related to the inspection, maintenance, and repair of pressure vessels, storage tanks, and piping systems. It emphasizes a thorough understanding of codes, standards, inspection techniques, and safety procedures. It's a comprehensive exam requiring significant preparation.