Lubrication

Question 0

What type of friction would produce the greatest heat

Answer 0

Sliding friction

Question 1

List three kinds of friction and provide examples for each

Answer 1

Sliding friction. Moving your workbench

Rolling friction. Roller bearing

Fluid friction. Cold roll

Question 2

What is the definition of this Viscosity

Answer 2

Viscosity is a term used to describe a liquid flow rate so if it has high viscosity it will flow slowly

Question 3

How would an increase viscosity affect the load strength of the lubricant

Answer 3

The molecules will form a tighter bond thus allowing it to be stronger

Question 4

How would a decrease in viscosity affect the power consumption of a machine

Answer 4

In a lower for Viscosity the molecules are less packed the thus being able to flow easier

Question 5

What is the worldwide excepted unit of measure of oil viscosity

Answer 5

Centistokes

Question 6

How is the poor point of oil determent

Answer 6

The lowest temperature oil is observed to slow

Question 7

The type of lubricant film that forms under a loaded rolling element of bearing is called

Answer 7

Oil wedge

Question 8

What percentage of Industrial lubricants would be additives

Answer 8

22%

Question 9

The oxidize edition rate of petroleum based oil doubles for every blank degrees Celsius temperature rises above blank degrees Celsius

Answer 9

8°C and 55°C

Question 10

What would be the correct level of oil and a pillow block housing for antifriction Bearing

Answer 10

Between one third and 1 Half Way up the lowest rolling element in the oil bath

Question 11

Wick feed oilers rely on what action to deliver the oil to the lubrication point

Answer 11

Capelli reaction

Question 12

List three types of nozzles used in an oil must lubrication system and her application

Answer 12

Spray fittings. High-speed antifriction bearings

Condensing fitting slow-moving slide and Machine tool ways

Missed fittings. Change drives gearsets or bearings

Question 13

Divider block lubrication systems are designed for which application

Answer 13

Large stationary engines and reciprocating compressors

Question 14

What is it meant by the term drop point

Answer 14

The lowest temperature at which lubricant will begin to drip from Greece

Question 15

Which wears out the base oil or the additives

Answer 15

The additives

Question 16

What is the most widely used crude oil base stock in North America

Answer 16

Paraffin base stock

Question 17

Why were synthetic oil’s developed

Answer 17

To solve the lubrication problems that cannot be overcome by petroleum based oil’s

Question 18

What is the temperature limit for anti-where at additives

Answer 18

hundred degrees Celsius

Question 19

How does a grease thickener work

Answer 19

The thickener acts like a sponge to hold the lubricant and also controls the flow of the grease to the areas to be lubricated

Question 20

What is the drop point referring to in a grease

Answer 20

The lowest temperature at which the lubricant will begin to drip from the grease

Question 21

What are the three types of solid lubricant used in industry

Answer 21

Graphite
Teflon
Molybdenum disulphide