Which is a common type of tank inspection method in API 650?

• A. Ultrasonic testing
• B. Radiographic testing
• C. Visual inspection
• D. Magnetic particle inspection

Answer: (C)

Visual inspection is a fundamental and common method of tank inspection in accordance with API 650 standards. This method allows for a preliminary assessment of the tank's overall condition, enabling inspectors to identify visible signs of deterioration such as corrosion, cracks, or other surface anomalies. Visual inspection is crucial because it can often be performed without the need for specialized equipment, making it accessible and straightforward.

This method serves as the first step in ensuring both safety and compliance with standards, as it can effectively identify areas that may require more detailed examination through other methods. Additionally, visual inspections are often supplemented by other techniques, but they remain a standard approach for initial assessments in maintenance and regulatory compliance scenarios.