Excessive, prolonged oil foaming in the...

Question 1 / 270705eccef9dbacbc34ba4d46020

Question 1 of 270705eccef9dbacbc34ba4d46020

Excessive, prolonged oil foaming in the crankcase of a refrigeration compressor at start up can cause what to happen?

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Question 1 of 27070

Excessive, prolonged oil foaming in the crankcase of a refrigeration compressor at start up can cause what to happen?

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🔍 Key Concepts

• Behavior of oil-refrigerant mixtures during compressor start-up • Purpose of crankcase lubrication in a refrigeration compressor • Effects of foaming on oil delivery to moving parts

💭 Think About

• Think about what happens to the oil level and oil pump pickup when the oil is full of bubbles instead of liquid oil. • Consider which of the choices would be most directly and immediately caused by frothy, aerated oil in the crankcase. • Ask yourself: during start-up, what is the most critical function that crankcase oil must perform for the compressor to survive?

✅ Before You Answer

• Verify which option describes an immediate mechanical risk during start-up, not a long-term maintenance issue. • Check which choices involve chemical changes over time versus a direct result of air/foam in the oil. • Focus on the choice that best matches a situation where the compressor is running but not getting solid, continuous lubrication.

Question 1 of 27070

Excessive, prolonged oil foaming in the crankcase of a refrigeration compressor at start up can cause what to happen?

compressor damage from a lack of proper lubrication

formation of sludge in the crankcase

increased viscosity in the lubricant

carbon deposit on the compressor suction valves

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Question 1 / 270705eccef9dbacbc34ba4d46020

Question 1 of 270705eccef9dbacbc34ba4d46020

Excessive, prolonged oil foaming in the crankcase of a refrigeration compressor at start up can cause what to happen?

Back

Question 1 of 27070

Excessive, prolonged oil foaming in the crankcase of a refrigeration compressor at start up can cause what to happen?

If the question has a related picture, it will appear here.

🔍 Key Concepts

• Behavior of oil-refrigerant mixtures during compressor start-up • Purpose of crankcase lubrication in a refrigeration compressor • Effects of foaming on oil delivery to moving parts