What apparatus washes away dirt and clay from diamond-bearing ore?

What apparatus washes away dirt and clay from diamond-bearing ore?

• A. Scoop
• B. Scaife
• C. Scrubber
• D. Secondary Deposit

Answer: (C)

The key idea is removing surface impurities from diamond-bearing ore by using water and mechanical action to loosen dirt and clay. The scrubber is the apparatus designed for this step: it agitates the ore in water, breaking up clay coatings and washing away lighter material so the diamonds can be separated more easily in subsequent processing. A scoop is just a tool for moving material, not a washing device; a scaife is a grinding wheel used for sharpening or finishing, not for washing ore; and a secondary deposit refers to a geological accumulation, not a piece of equipment. So, scrubbing specifically serves the purpose of washing away dirt and clay from the ore.

The key idea is removing surface impurities from diamond-bearing ore by using water and mechanical action to loosen dirt and clay. The scrubber is the apparatus designed for this step: it agitates the ore in water, breaking up clay coatings and washing away lighter material so the diamonds can be separated more easily in subsequent processing. A scoop is just a tool for moving material, not a washing device; a scaife is a grinding wheel used for sharpening or finishing, not for washing ore; and a secondary deposit refers to a geological accumulation, not a piece of equipment. So, scrubbing specifically serves the purpose of washing away dirt and clay from the ore.