Blast hole is?

Blast hole is?

• A. Hole drilled in rock or material for placement of explosives
• B. A hole used to drain water
• C. A hole used for air venting
• D. A drilled hole for sampling

Answer: (A)

In blasting terminology, a blast hole is a hole drilled into rock or material specifically to place an explosive charge. This hole serves as the container for the explosive and provides the path through which the energy is directed into the rock to produce controlled fragmentation. Its dimensions and depth are chosen to match the blast design, and it is often stemmed with inert material to confine the energy and control how the rock breaks. Holes used for drainage, air venting, or sampling serve different purposes and are not the same as blast holes.

In blasting terminology, a blast hole is a hole drilled into rock or material specifically to place an explosive charge. This hole serves as the container for the explosive and provides the path through which the energy is directed into the rock to produce controlled fragmentation. Its dimensions and depth are chosen to match the blast design, and it is often stemmed with inert material to confine the energy and control how the rock breaks. Holes used for drainage, air venting, or sampling serve different purposes and are not the same as blast holes.