Daily Security Technology Quiz (2016.9.9)
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1. Until it is confirmed that no electricity is present, any electrical equipment should be assumed to be ____ A. Live B. Dead C. Possibly live D. Possibly dead. 2. When repairing mechanical or electrical equipment, a warning sign must be placed at the power switch, which should read ____ A. “Be careful” B. “Live voltage, dangerous” C. “Someone is working; do not turn on the power” D. “Under maintenance; be careful.” The correct answers are A and C
A C~~~~~~~~~~~~~
1. A. ---2, C.
1. A: Power is on. 2. C: “Someone is working; switching on is strictly prohibited.””