General Studies · Refrigeration and Air Conditioning
An auto-defrost (frost-free) refrigerator system automatically melts frost buildup on the cooling coils primarily by using which component?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1An absorption plate containing secondary liquid glycol
- 2An electric heating element controlled by a defrost timer✓
- 3An continuous high-speed ambient air fan
- 4An electronic thermostat attached to the exterior cabinet
Correct answer
An electric heating element controlled by a defrost timer
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