Electricity Technology Daily Question 2018.12.10

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Multiple-choice questions from the electrical safety procedures exam: Before the maintenance work is completed, if it is necessary to apply operating voltage to the equipment, this should be done under the following conditions: A: All workers must leave the work area. B: All work permits related to that system must be collected. C: The warning signs must be removed and the normal barriers must be reinstalled. D: After a thorough inspection by the person in charge of the work confirms that everything is in order, the operation staff may then carry out the voltage application test. E: After a thorough inspection by both the person in charge of the work and the operation staff confirms that everything is in order, the operation staff may then carry out the voltage application test. F: Remove temporary barriers, grounding wires, and signs, and restore the permanent barriers ABEF