Question

after a probe thermometer is calibrated, what should be done next?
the manager should be informed
record it in a log book
throw the thermometer out
none of the above

Explanation:

After calibrating a probe thermometer, it is a standard practice to record the calibration details in a log book for documentation and traceability. Informing the manager is not the immediate next step after calibration. Throwing the thermometer out is incorrect as calibration is to ensure its accuracy for continued use. Since recording in a log book is a valid next - step, "None of the above" is wrong.

Answer:

Record it in a log book