AMPP CP1 Tester Practice Questions - AMPP CP1 Cathodic Protection Tester Exam

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Which of the following is the PRIMARY purpose of the instant-off (interrupt) technique when measuring pipe-to-soil potential?

To reduce meter battery consumption To eliminate the IR drop component from the measurement so the polarized potential can be read To measure AC voltage separately from DC To verify rectifier efficiency

Correct Answer:

To eliminate the IR drop component from the measurement so the polarized potential can be read

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