Podcast
Questions and Answers
What is the term used to describe the extra force required when two surfaces rub against each other?
What is the term used to describe the extra force required when two surfaces rub against each other?
- Force of wear
- Force of lubrication
- Force of separation
- Force of friction (correct)
How can the friction between two moving surfaces be considerably reduced?
How can the friction between two moving surfaces be considerably reduced?
- By applying more pressure on the surfaces
- By using a lubricant to separate the surfaces (correct)
- By reducing the speed of the moving surfaces
- By increasing the weight on the surfaces
What happens to high spots (or hills) on surfaces when they rub against each other?
What happens to high spots (or hills) on surfaces when they rub against each other?
- They break off (correct)
- They increase in size
- They become smoother
- They form corrosion barrier films
How can a lubricant help reduce wear between two surfaces?
How can a lubricant help reduce wear between two surfaces?
What is one role of lubricants in temperature control?
What is one role of lubricants in temperature control?
In what scenario can lubricants serve as a cushion to absorb shock?
In what scenario can lubricants serve as a cushion to absorb shock?
What is friction between two surfaces defined as?
What is friction between two surfaces defined as?
What is the primary reason for the resistance to relative motion between two smoothly ground metal surfaces?
What is the primary reason for the resistance to relative motion between two smoothly ground metal surfaces?
What is the purpose of lubrication in relation to surface irregularities?
What is the purpose of lubrication in relation to surface irregularities?
What are the two most important purposes of lubricants?
What are the two most important purposes of lubricants?
What happens when surfaces with irregularities rub together?
What happens when surfaces with irregularities rub together?
What is not a purpose of lubricants?
What is not a purpose of lubricants?
