Question 3035 of 223 · California Water Treatment Operator Exam
An on-line chlorine analyzer shows a steady reading that disagrees with a grab sample test. The operator should first
Exactly one answer is correct.
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Correct answer to question 3035
- A: verify the analyzer by calibrating it against a properly run bench test
Explanation
On-line instruments drift or foul. They should be cross-checked against approved bench methods and calibrated on a regular schedule.
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