With respect to lubricating oils, what...

Question 1 / 205eccefa2bacbc34ba4d47924

Question 1 of 205eccefa2bacbc34ba4d47924

With respect to lubricating oils, what statement is true concerning viscosity and viscosity index?

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Question 1 of 20

5eccefa2bacbc34ba4d47924

With respect to lubricating oils, what statement is true concerning viscosity and viscosity index?

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🔍 Key Concepts

• Viscosity as it relates to how easily a liquid flows (think "thickness" or internal resistance to flow). • Viscosity index (VI) as it relates to how much an oil’s viscosity changes when temperature changes. • Common engineering meanings of emulsification, oxidation, and lubricity and whether they are normally defined by viscosity.

💭 Think About

• First, recall the basic textbook definition of viscosity itself. Does it describe resistance to flow, resistance to mixing with water, resistance to oxidation, or lubricating quality? • Then, think about what engineers and engine manuals mean when they talk about a high or low viscosity index. Is VI about temperature behavior, pressure behavior, or chemical stability? • Compare each choice: which one uses the standard definition of viscosity AND the standard definition of viscosity index together, without adding extra, unrelated ideas?

✅ Before You Answer

• Be sure you correctly match viscosity with its fundamental physical meaning (how it flows) rather than a secondary property like oxidation or emulsification. • Confirm that viscosity index specifically involves how viscosity changes with temperature, not with pressure or chemical reaction. • Eliminate any option that redefines viscosity or viscosity index in a way you have not seen in marine engineering texts or manufacturer oil data sheets.

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Question 1 of 20

With respect to lubricating oils, what statement is true concerning viscosity and viscosity index?

Viscosity is a measure of an oil's internal resistance to flow and viscosity index is a measure of an oil's ability to resist change in viscosity as the temperature changes.

Viscosity is a measure of an oil's resistance to emulsification and viscosity index is a measure of an oil's ability to resist change in viscosity as the temperature changes.

Viscosity is a measure of an oil's ability to resist oxidation and viscosity index is a measure of an oil's ability to resist change in viscosity as the temperature changes.

Viscosity is a measure of an oil's lubricity and viscosity index is a measure of an oil's ability to resist change in lubricity as the pressure changes.

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Question 1 / 205eccefa2bacbc34ba4d47924

Question 1 of 205eccefa2bacbc34ba4d47924

With respect to lubricating oils, what statement is true concerning viscosity and viscosity index?

Back

Question 1 of 20

5eccefa2bacbc34ba4d47924

With respect to lubricating oils, what statement is true concerning viscosity and viscosity index?

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

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