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

Access More Questions

In underground hard-rock tunneling (drive development), what is the function of uncharged (reamed) large-diameter relief holes in a burn cut design?

To drain excess fissure water from the tunnel face before charging To provide a free face and expansion void for adjacent loaded cut holes to break into To act as anchor points for face scraper ropes after blasting To allow ventilation air to purge gases from deep behind the blast face

Correct Answer:

To provide a free face and expansion void for adjacent loaded cut holes to break into

Access more questions from this quiz

Continue to Scheduled Mines Blasting Certificate Exam Practice Questions - Scheduled Mines Blasting Certificate of Competency Examination (South Africa) Exam for more practice questions and the full quiz experience.

Access More Questions