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This question belongs to Mining Engineering Drilling And Blasting

Drilling and Blasting

?

Every electrical shot-firing apparatus shall be so constructed that the firing circuit is made or broken automatically by means of which of the following?

A) push-button switch B) make and break switch C) pull out tag out switch D) conduit voltage circuit breaker

Answer & Solution

Correct Answer: Option A

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Question posted by Examveda

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