Question 120Refrigeration & AC - QMED
70% to passUnusual noise coming from a refrigeration compressor can be caused by which of the following conditions?
Aworn bearings and piston pins
Bslugging due to flooding back
Ctoo much oil in circulation
Dall of the above
AI Explanation
The correct answer is D) all of the above. An unusual noise coming from a refrigeration compressor can be caused by several conditions, including: A) Worn bearings and piston pins - This can lead to increased friction and vibration, resulting in unusual noises. B) Slugging due to flooding back - This occurs when liquid refrigerant enters the compressor, causing a hydraulic shock and unusual noises. C) Too much oil in circulation - Excess oil can interfere with proper lubrication, leading to increased wear and noises. All of these conditions can contribute to unusual noises from a refrigeration compressor, making D) all of the above the correct answer.
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