Question

a well - trained dish washer recorded the temperatures on the dish machine every shift. the restaurant preferred to avoid chemicals as much as possible and only used hot water for the sanitizing cycle. the manager noticed that the temperature records read 175 degrees f every day. the dish washer confirmed that the thermometer read 175 degrees f each time he checked the temperature. because the manager was suspicious of this constant temperature, a safe approach would be to _____.
be grateful the machine works and dont mess with it
retrain the dishwasher on how to read the dial on the dish machine
call the service technician to check the accuracy of the thermometer
order a new thermometer and replace it

Explanation:

The manager is suspicious that the thermometer always reads 175 degrees F. The first step should be to check the accuracy of the existing thermometer. Retraining the dishwasher (if they are well - trained) or replacing the thermometer without checking its accuracy first is not the most logical approach. Just being grateful without proper verification is also not a safe practice.

Answer:

C. Call the service technician to check the accuracy of the thermometer