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Rohangrr

  • 3 years ago

Which of the following circuit breakers does not use pneumatic operating mechanism (A) Air blast circuit breaker (B) SF6 blast circuit breaker (C) Air break circuit breaker (D) Bulk-oil circuit breaker.

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  1. Dr.Professor
    • 3 years ago
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    Its D

  2. Rohangrr
    • 3 years ago
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    Thanks

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