API-598: Piping Engineering Welcome to your API-598: Piping Engineering 1. For low-pressure closure tests, the test medium for API 598 is air or inter gas, True False 2. The test medium for API 6D is air or nitrogen True False 3. API 598 covers the inspection, examination, and testing requirements for resilient-seated, non-metallic-seated, and metal-to-metal-seated gate, glove, plug, ball, check, and butterfly valves. True False 4. Methods of checking the Critical valves Externally. Internally In-line function testing All of the above 5. The valve seat tests procedure involves placing a valve under pressure, then measuring the amount of leakage on the other side of the valve True False 6. The maximum permissible leakage rate shall be 0.18 cubic inch (3 cubic centimeters) per minute per inch of nominal pipe size True False 7. Valve seat leakage tests are not required for pressure relief valves True False 8. Backseat tests are required for valves with a backseat element, including gate and globe valves. True False 9. Closure test is required for Gate Valves Glove Valves Check Valves Ball Valves All Of the above 10. No leakage is permissible in the backseat test True False 1 out of 5
