The augers used for boring pier holes generally use
A)a hammering operation.
B)a rotary operation followed by a hammering operation.
C)a rotary operation with a helix- type blade cutter.
D)a vibratory operation followed by a hammering operation.
E)none of the above.

Question

Quizplus · Accepted Answer

Pier hole augers use a rotary operation with a helix-type blade cutter to bore holes in the soil. This allows for efficient and precise excavation of the pier hole without damaging the surrounding soil.

The Augers Used for Boring Pier Holes Generally Use