Sludge may be formed in the oil in the...

Question 1 / 270705eccef9dbacbc34ba4d46012

Question 1 of 270705eccef9dbacbc34ba4d46012

Sludge may be formed in the oil in the crankcase of a reciprocating air conditioning compressor as a result of what condition?

Back

Question 1 of 27070

Sludge may be formed in the oil in the crankcase of a reciprocating air conditioning compressor as a result of what condition?

🔍 Key Concepts

• Effect of overheating on lubricating oil in compressors • How refrigerant normally interacts with lube oil (viscosity, bubbles, miscibility) • Meaning of sludge formation vs. changes in viscosity or cloud point

💭 Think About

• Which option describes a condition that would chemically or thermally break down the oil into deposits, rather than just thinning or mixing it? • Think about what physical signs you would see if sludge is present in a crankcase—would that more likely come from temperature damage or from dissolved refrigerant? • Which choice involves a permanent degradation of the oil, instead of a reversible effect when conditions return to normal?

✅ Before You Answer

• Identify which answer choice involves overheating or burning of the oil • Distinguish between viscosity change and sludge/deposit formation • Recall that cloud/floc point deals with waxy separation at low temperatures, not necessarily crankcase sludge in normal operation

Question 1 of 27070

Sludge may be formed in the oil in the crankcase of a reciprocating air conditioning compressor as a result of what condition?

refrigerant bubbles in the lube oil

refrigerant reducing the lube oil viscosity

carbonization of the lube oil from overheating

reducing the floc or cloud point of the oil

Question 1 / 270705eccef9dbacbc34ba4d46012

Question 1 of 270705eccef9dbacbc34ba4d46012

Sludge may be formed in the oil in the crankcase of a reciprocating air conditioning compressor as a result of what condition?

Back

Question 1 of 27070

Sludge may be formed in the oil in the crankcase of a reciprocating air conditioning compressor as a result of what condition?