WorksheetsOil Viscosity Quiz
Total questions: 15
Worksheet time: 8mins
What organization is responsible for selecting the numbers that indicate oil viscosity?
American Petroleum Institute
Society of Automotive Engineers
National Oil Corporation
International Lubricant Association
What is the purpose of using multi-viscosity oils?
To avoid seasonal oil changes
To increase engine power
To reduce oil consumption
To improve fuel efficiency
What does SAE stand for?
Society of Automotive Engineers
Standard Automotive Equipment
Society of Advanced Engineering
Standard Association of Engineers
What is the significance of the second part of a multi-viscosity oil grade (e.g., 30 in 10W-30)?
It defines viscosity at 212 degrees Fahrenheit
It defines viscosity at 0 degrees Fahrenheit
It defines the oil's boiling point
It defines the oil's freezing point
What is the main advantage of using multi-viscosity oils in variable climate zones?
Avoiding seasonal oil changes
Increasing engine noise
Decreasing engine efficiency
Increasing oil consumption
What does the number 30 represent in SAE 10W-30 oil?
Viscosity at 0 degrees Celsius
Viscosity at 100 degrees Celsius
Viscosity at 212 degrees Fahrenheit
Viscosity at 150 degrees Celsius
What is the base rating of SAE 10W-30 oil when cold?
5
10
15
20
What is the high shear rate viscosity of SAE 60 oil at 150 degrees Celsius?
2.6 mPa.s
3.7 mPa.s
3.7** mPa.s
2.9 mPa.s
Which SAE viscosity grade has data unavailable for high shear rate viscosity?
30
20
25W
40
What is the main problem caused by oil becoming thinner at higher temperatures?
It causes the engine to overheat
It causes problems in engines operating over a wide range of temperatures
It makes the oil more expensive
It increases fuel consumption
What is the main compromise when choosing the ideal motor oil weight?
Cost vs. quality
Viscosity vs. temperature
Thickness vs. wear
Energy vs. efficiency
What type of oil shows a larger rate of viscosity change with temperature?
Paraffin crude oil
Naphthenic oil
Synthetic oil
Mineral oil
What is the effect of a polymer-thickened light oil at low temperatures?
It becomes less fluid
It becomes more fluid
It becomes thicker
It becomes more efficient
Which oil type has a viscosity index range of 205 – 400?
Silicone Oil
Mineral Oil
PAO Oil
Glycol
Which oil type has the highest potential viscosity index range?
Multi-Grade Oil
Silicone Oil
PAO Oil
Mineral Oil
