The lubrication oil in the crankcase of a...

Question 1 / 205eccef9dbacbc34ba4d46017

Question 1 of 205eccef9dbacbc34ba4d46017

The lubrication oil in the crankcase of a refrigeration compressor that is shut down is heated. For what purpose is this done?

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Question 1 of 20

5eccef9dbacbc34ba4d46017

The lubrication oil in the crankcase of a refrigeration compressor that is shut down is heated. For what purpose is this done?

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🔍 Key Concepts

• Refrigerant–oil relationship in the crankcase when the compressor is idle • How temperature affects refrigerant dissolving into or coming out of oil • What happens to moisture and contaminants in oil when it is gently heated

💭 Think About

• When a compressor is shut down, what does the refrigerant tend to do in cooler oil—dissolve into it, boil off, or separate? • If you slightly raise the oil temperature, which of the listed effects is most important for protecting the compressor at the next start? • Which choice directly addresses avoiding liquid or gas refrigerant problems inside the crankcase on start‑up, rather than cleaning or conditioning the oil?

✅ Before You Answer

• Identify which option deals specifically with refrigerant behavior in oil, not general oil cleaning. • Ask: Does gentle crankcase heating usually reach temperatures high enough to remove water, wax, or gum from lube oil? • Consider which effect would reduce the risk of damage (like foaming, loss of lubrication, or slugging) when the compressor restarts.

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Question 1 of 20

The lubrication oil in the crankcase of a refrigeration compressor that is shut down is heated. For what purpose is this done?

reduce absorption of refrigerant by the oil

prevent refrigerant vaporization

remove entrained water

remove wax and gum

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Question 1 / 205eccef9dbacbc34ba4d46017

Question 1 of 205eccef9dbacbc34ba4d46017

The lubrication oil in the crankcase of a refrigeration compressor that is shut down is heated. For what purpose is this done?

Back

Question 1 of 20

5eccef9dbacbc34ba4d46017

The lubrication oil in the crankcase of a refrigeration compressor that is shut down is heated. For what purpose is this done?

No comments yet

Be the first to share your thoughts!

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

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed