A standard slope charge consists of how much explosive?

A standard slope charge consists of how much explosive?

• A. 5 pounds of TNT
• B. 1 kg or 2 pounds of TNT
• C. 0.25 kg of TNT
• D. 10 pounds of TNT

Answer: (B)

A slope charge is a small, pre-split charge used to initiate breakage along a slope so the rock cleanly fractures and the bench can advance safely. The standard size is chosen to deliver enough energy to start fracturing without causing excessive vibrations, backbreak, or flyrock. About 1 kilogram of TNT (roughly 2 pounds) provides reliable initiation for typical slope conditions while keeping energy low enough to minimize disturbance. Larger charges would raise safety risks and cause overbreak, while much smaller charges may not reliably initiate the slope break. So the standard slope charge is 1 kg or about 2 pounds of TNT.

A slope charge is a small, pre-split charge used to initiate breakage along a slope so the rock cleanly fractures and the bench can advance safely. The standard size is chosen to deliver enough energy to start fracturing without causing excessive vibrations, backbreak, or flyrock. About 1 kilogram of TNT (roughly 2 pounds) provides reliable initiation for typical slope conditions while keeping energy low enough to minimize disturbance. Larger charges would raise safety risks and cause overbreak, while much smaller charges may not reliably initiate the slope break. So the standard slope charge is 1 kg or about 2 pounds of TNT.