If there is a misfire, what is the recommended action regarding drilling near bootlegs?

If there is a misfire, what is the recommended action regarding drilling near bootlegs?

• A. Do not drill within 15 centimeters of old holes or bootlegs
• B. Drill within 15 centimeters
• C. Drill within 30 centimeters
• D. Drill at least 1 meter away

Answer: (A)

The rule is about staying away from possible undetonated charges in bootlegs after a misfire. Bootlegs are old holes that may still contain unstable material, and the vibrations or disturbance from drilling can reinitiate those charges. Keeping a small buffer around them helps prevent a new detonation. That buffer is 15 centimeters, so the recommended action is not to drill within 15 centimeters of old holes or bootlegs. Drilling closer increases the risk of triggering a misfire, while drilling farther away is unnecessary protection once you’re beyond that safe zone.

The rule is about staying away from possible undetonated charges in bootlegs after a misfire. Bootlegs are old holes that may still contain unstable material, and the vibrations or disturbance from drilling can reinitiate those charges. Keeping a small buffer around them helps prevent a new detonation.

That buffer is 15 centimeters, so the recommended action is not to drill within 15 centimeters of old holes or bootlegs. Drilling closer increases the risk of triggering a misfire, while drilling farther away is unnecessary protection once you’re beyond that safe zone.