Scheduled Mines Blasting Certificate Exam Practice Questions - Scheduled Mines Blasting Certificate Of Competency Examination (South Africa) Exam

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In a shock tube initiation network underground, what transmits the detonation signal through the hollow plastic tubing to the surface or detonator cap?

A low-velocity deflagration wave of explosive dust coating on the inner tube wall A high-voltage electrical pulse conducted along an inner copper filament A high-pressure pneumatic air pulse traveling at sonic velocity A liquid nitroglycerin core undergoing continuous detonation

Correct Answer:

A low-velocity deflagration wave of explosive dust coating on the inner tube wall

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