Which Cleaning Method Uses High-Frequency Sound Waves to Create Microscopic

question 12

Multiple Choice

Which cleaning method uses high-frequency sound waves to create microscopic bubbles that loosen dirt from parts?

• A) ultrasonic
• B) salt bath
• C) thermal
• D) caustic

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Definitions:

Angular Blocks

Fragments of rock with sharp edges that have been broken off a larger mass by processes such as faulting or erosion.

Rock Powder

Finely ground rock that can be used as a soil amendment to provide minerals and nutrients for plant growth.

Sand

A grain or rock fragment smaller than 2 mm and larger than 1/16 mm.

Rounded Stones

Stones with smooth edges and surfaces typically resulting from extended water or wind erosion and abrasion.