General Lubrication Theory Overview Quiz
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Question 1 of 10
1. Question
1 point(s)Whenever two solid surfaces interact, they experience a resistive force known as solid friction. There are two stages of solid friction; _________ and ___________.
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Question 2 of 10
2. Question
1 point(s)What major factors affect friction?
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Question 3 of 10
3. Question
1 point(s)Film Thickness Ratio Lambda is defined as:
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Question 4 of 10
4. Question
1 point(s)Lubricant viscosity compensates for ______ and ______ changes.
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Question 5 of 10
5. Question
1 point(s)According to a study performed by Rabinowicz, the four contributors to surface degradation identified are ____________, ____________, ____________, and ____________.
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Question 6 of 10
6. Question
1 point(s)What are all the factors that influence the choice of choosing oil or grease to lubricate?
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Question 7 of 10
7. Question
1 point(s)Viscosity is the measure of____________ and _______________.
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Question 8 of 10
8. Question
1 point(s)Oil additives are classified into 3 classes: _____ , _______, and ______. (give examples)
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Question 9 of 10
9. Question
1 point(s)Provide examples of 5 synthetic base oils:
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Question 10 of 10
10. Question
1 point(s)Define dN and Dn
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ok
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I can not start the second video even I finish this step. I repeated this many times without being able to visualize the second video which included the course. Thank you beforehand to resolve this issue.
Wouldn’t surface roughness and asperities be the same thing? If a surface is rough, it will have asperities.
I can see what you mean. RMS (root mean square) is a measure of surface roughness of a surface relating to the centerline average between the peaks and valleys of the asperities Example: 15μ inches RMS describes a surface profile where the average of the peaks and valleys is 15 millionths of an inch.
The questions were too much advanced
Not too advanced – You must research your answer using other sources.
The questions were too advanced
Not too advanced – You must research your answer using other sources.
The questions in this quiz are a good guide to learning pathways.
ok
Basically ,difficult 🙂
Good
I am trying to understand the functioning of the site. but I liked the quiz.
Need some refresher!!!
Thanks definetly need a refresher
Great
Good course
Base line quiz
None at this time
please reopen the training. I did not get to finish
thanks
cant go to lesson 2
great but can’t go to lesson two
I will get this fixed right away.
Asperities and surface roughness fall into the same factor, surface roughness correlates directly with asperities. Motion is a significant factor in that whether there is or is not motion, the coefficient of friction is different. The answer selected does not include speed, but there is no option for applied load. Generally speaking, the force of friction is determined by coefficient of friction and normal force (applied load)