【Daily Topic】【Electrical Edition 20170407】
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Participation reward: 2 Wealth. Correct reward: 8 Wealth. Multiple-choice question: The determining condition under which the contacts of contactors and relays can be interchanged is ( ). A. The rated voltage is the same. B. The rated current is the same. C. The number of contacts is the same. D. All of the above are the same. D
B. When the rated current is the same, the determining condition for the contacts of a contactor and a relay to be interchangeable is (B). A. The rated voltage is the same B. The rated current is the same C. The number of contacts is the same D. All of the above are the same
The determining condition for the contacts of contactors and relays to be interchangeable is ( D ). A. The rated voltage is the same B. The rated current is the same C. The number of contacts is the same D. All of the above are the same