AMPP CP2 Technician Practice Questions - AMPP CP2 Cathodic Protection Technician Exam

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During an instant-off survey on a pipeline with two rectifiers, both interrupters are synchronized and run for one full cycle. The 'on' potential at test station TS-15 is -1.080 V CSE and 'off' is -0.840 V CSE. What should the technician report?

The 100 mV polarization shift criterion is met The polarized potential does NOT meet the -850 mV polarized criterion; additional CP current or investigation is required The structure is overprotected The interrupter is faulty

Correct Answer:

The polarized potential does NOT meet the -850 mV polarized criterion; additional CP current or investigation is required

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