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

A centrifugal pump is cavitating on a new process suction. Which piping condition is the most likely cause?

NPSH available is less than NPSH required, often from a suction line that is too small, too long, too hot, or missing a flooded suction The discharge relief valve is set below MAWP The coupling guard is painted yellow The motor rotation is correct and the suction is flooded with cold liquid

Correct Answer:

NPSH available is less than NPSH required, often from a suction line that is too small, too long, too hot, or missing a flooded suction

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