Engine : Expired / Refrigeration AC - 148/252
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| The FIRST thing to do to ensure that a refrigeration unit will not start while undergoing repairs is to do what? |
| A) inform all persons in the area not to start the unit |
| B) place a crow bar in the flywheel of the unit |
| C) make a log book entry |
| D) secure and tag the electrical circuit |
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