Question

一.单选题(共20题,共40分)
43.confirmation of the equipment or line without electricity should be based on the ( ). (2分)
○a.voltmeter
○b.check normal electroscopes
○c.disconnect signals

Explanation:

When confirming that equipment or a line has no electricity, normal electroscopes are used. Voltmeters are mainly for measuring voltage values. Disconnect signals are not directly used for confirming no - electricity.

Answer:

B. Check normal electroscopes