P&Q University: Lesson 4 Quiz Answers

By |  March 13, 2015

1. A blasthole

2. The drilling phase

3. Determine the hole size or diameter that fits an application best

4. Percussion (top hammer, out of the hole drills) and rotary (down the hole drills)

5. Mobility; simplicity; reliability and mechanical availability; productivity; and safety

6. Down-the-hole

7. ANFO – ammonium nitrate fuel oil

8. Delay detonators

and posted in Pit & Quarry University

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