SC Pressure And Process Piping Practice Questions - South Carolina Pressure And Process Piping Contractor Examination Exam

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A fitter is about to break a flanged joint on a process line that may still be pressurized. What is the required energy-control step?

Crack the joint slightly to see if anything comes out, then keep going Apply lockout/tagout, isolate and depressurize the line, and verify zero energy before the joint is broken Ask a helper to stand by the pump start button Remove the bolts on the bottom first so any liquid drains on the fitter's boots

Correct Answer:

Apply lockout/tagout, isolate and depressurize the line, and verify zero energy before the joint is broken

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