Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich risk increases when a refrigeration compressor undergoes repeated on/off cycling at high frequency?
A)Reduced heat transfer efficiency slightly
B)Premature bearing wear due to lubrication intermittency✓
C)Increased refrigerant flow rate gradually.
D)Elevated superheat despite condenser saturation
💡 Explanation
Frequent starts cause lubrication pumps to lose pressure repeatedly limiting oil film, causing premature wear; this is the stiction mechanism. Bearing wear results therefore, rather than simple efficiency loss, because lubrication failures can have long term, mechanical consequences.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which outcome occurs when differential stress is applied rapidly to crystalline ceramic materials?
- Which outcome occurs when applying sustained mechanical stress to crystalline ionic compounds?
- Which mechanism limits the effectiveness of a drug using receptor targeting within cell membranes?
- Which limitation appears in a Carnot heat engine operating isothermally?
- Which outcome occurs when atomic hydrogen contacts stainless steel?
- Which outcome results when using a short coherence length pulsed laser?