Which cleaning method loosens dirt from parts using microscopic bubbles created by high frequency sound waves.

Which cleaning method loosens dirt from parts using microscopic bubbles created by high frequency sound waves.

• A. Steam cleaning
• B. Ultrasonic
• C. Aqueous cleaning
• D. Dry cleaning

Answer: (B)

Ultrasonic cleaning relies on microscopic bubbles created by high-frequency sound waves in a liquid. These bubbles form and then violently collapse in a process called cavitation, producing tiny jets and shock waves that loosen dirt from surfaces, even in hard-to-reach areas and intricate parts. This makes it especially effective for delicate engine components that shouldn’t be scrubbed aggressively by hand. Steam cleaning uses heat and moisture to loosen grime, not bubble cavitation. Aqueous cleaning refers to water-based cleaners, which may or may not use ultrasonic energy, but the description here specifically points to bubbles formed by high-frequency sound waves, which defines ultrasonic cleaning. Dry cleaning involves solvent or vapor cleaning without water and without ultrasonic cavitation.

Ultrasonic cleaning relies on microscopic bubbles created by high-frequency sound waves in a liquid. These bubbles form and then violently collapse in a process called cavitation, producing tiny jets and shock waves that loosen dirt from surfaces, even in hard-to-reach areas and intricate parts. This makes it especially effective for delicate engine components that shouldn’t be scrubbed aggressively by hand.

Steam cleaning uses heat and moisture to loosen grime, not bubble cavitation. Aqueous cleaning refers to water-based cleaners, which may or may not use ultrasonic energy, but the description here specifically points to bubbles formed by high-frequency sound waves, which defines ultrasonic cleaning. Dry cleaning involves solvent or vapor cleaning without water and without ultrasonic cavitation.