Question

__________ refers to excavating the sides of an excavation to form one or a series of horizontal levels or steps, usually with vertical or near-vertical surfaces between levels.
A.
Benching
B.
Shielding
C.
Sloping

Answer 1

Benching refers to excavating the sides of an excavation to form one or a series of horizontal levels or steps, usually with vertical or near-vertical surfaces between levels. Correct answer:A

A benching system is a method of protecting workers from cave-ins by excavating.

Answer 2

The answer is Benching.

Benching and sloping are methods used to protect employees working in excavations from cave–ins. Benches are cuts in the slope that provides protection by removing material at an angle to its floor. They give the slope a stair-step appearance with emphasis on the angles; the flatter the angle, the more the protection. Benches are split into two groups: simple and multiple.