【Daily Topic】【Electrical Edition 20160913】

2016-09-14View Original

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Participation reward: 2 Wealth. Reward for correct answer: 9 Wealth. Which of the following can be used as a protective conductor? ( ) 　　A. The core wire of a single-core cable B. The working neutral wire outside the conductor C. A bare or insulated conductor that is fixed in place D. Metal protective coatings, shields, and armoring layers, etc. Correct answer: CD

Reply #22016-09-14

The following can be used as protective conductors: (C, D). 　　A. The core wire of a single-core cable B. The working neutral wire outside the conductor C. A bare or insulated conductor that is fixed in place D. Metal protective coatings, shielding layers, and armoring layers, etc

Reply #32016-09-14

C. Fixed bare conductors or insulated conductors D. Metal outer coatings, shields, and armor layers, etc

Reply #42016-09-14

C. Fixed bare conductors or insulated conductors

Reply #52016-09-14

CD~~~~~~~~~

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【Daily Topic】【Electrical Edition 20160913】

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