elect all true statements. In underground development blasting ... 1-long delays between holes should be used in the cut area to reduce vibrations and ensure smooth blasting 2-detonating cord rings can be used to connect detonators within a delay sector 3-the angle of breakage should be as large as possible to ensure each hole as free breakage

elect all true statements. In underground development blasting ... 1-long delays between holes should be used in the cut area to reduce vibrations and ensure smooth blasting 2-detonating cord rings can be used to connect detonators within a delay sector 3-the angle of breakage should be as large as possible to ensure each hole as free breakage

Residential Construction Academy: House Wiring (MindTap Course List)

5th Edition

ISBN:9781337402415

Author:Gregory W Fletcher

Publisher:Gregory W Fletcher

Chapter15: Special Residential Wiring Situations

Section: Chapter Questions

Problem 10RQ

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the second screen shot is solution of prob 7.5.5