Which of the following improper operations can cause off-specification product due to improper flows?
A. Failure to clean and lubricate valve stems
B. Improper closing of a valve on a high-pressure line
C. Use of excessive force when opening or closing a valve
D. Failure to wear proper protective equipment
A. Incorrect. Failure to clean and lubricate valve stems cannot cause off-specification product due to improper flows.
B. Incorrect. Improper closing of a valve on a high-pressure line cannot cause off-specification product due to improper flows.
C. Correct. Use of excessive force when opening or closing a valve can cause off-specification product due to improper flows.
D. Incorrect. Failure to wear proper protective equipment cannot cause off-specification product due to improper flows.
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