CLGS Fundamentals of Lubrication – Lesson 4 Quiz

Posted on August 1, 2018 (July 12, 2023) by Eric Lorentz

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Question 1 of 6

1. Question
1 point(s)

Absolute Viscosity (Dynamic Viscosity) is the ___________.

Oil’s internal resistance to flow and shear caused by internal friction

Ratio of shear stress by shear rate

Used to determine ISO viscosity

A & B

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Question 2 of 6

2. Question
1 point(s)

Kinematic Viscosity is ______________.

A measure of a fluid’s resistance to flow under gravity and related to a fluid’s density

Used for used oil analysis

Typically measured at 40°C and 100°C

All of the above

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Question 3 of 6

3. Question
1 point(s)

The ___________ defines viscosity grades in the range of 2 to 3200 square millimeters per second (1 mm2/s = equals 1 cSt) at 40ºC (104ºF).

ISO Classification

AGMA Classification

SAE Classification

Saybolt Classification

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Question 4 of 6

4. Question
1 point(s)

As an oils temperature increases, the viscosity ________.

Increases

Decreases

Remains unchanged until it oxidizes

Will experience cavitation

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Question 5 of 6

5. Question
1 point(s)

At 40°C, an AGMA _____ gear oil is approximately the same viscosity as an ISO VG 220, SAE 90 gear oil, and a SAE 50 engine oil.

4

7

5

3

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Question 6 of 6

6. Question
15 point(s)

In your current role, how does understanding viscosity influence your responsibilities:

This response will be awarded full points automatically, but it will be reviewed and possibly adjusted after submission.

Grading can be reviewed and adjusted.

Grading can be reviewed and adjusted.

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