Engine_2014 : Electricity - 2079/2299
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| Which of the following statements represents the FIRST precaution to be taken prior to working on any installed electrical component? |
| A) Wear rubber gloves and boots. |
| B) Use only approved non- conducting tools. |
| C) Ground the case of the machine before beginning any repairs. |
| D) Open the supply circuits and tag the switches. |
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