MCQOPTIONS
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| 1. |
Vacuum circuit breakers are used for applications of up to a voltage level ofa. 132 kVb. 220 kVc. 66 kVd. 400 kV |
| A. | c only |
| B. | b only |
| C. | b and a only |
| D. | b and d only |
| Answer» B. b only | |