DGVCL Exam Paper (12-06-2016)
The following is/are the characteristics of SF₆ circuit breakers:

All of these
Short break time of 2 to 2.5 cycles
It does not need an auxiliary breaking chamber
None of these

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DGVCL Exam Paper (12-06-2016)
A fuse wire should have :

High specific resistance and high melting point
Low specific resistance and high melting point
High specific resistance and low melting point
Low specific resistance and low melting point

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