Oil Viscosity Quiz

What does viscosity measure in a lubricant?

• Resistance to flow

• Temperature stability

• Acidity

• Color

What does the 'W' stand for in a motor oil grade like 10W30?

• Weight

• Wax

• Winter

• Warm

How does motor oil viscosity change with temperature?

• Thickens when cold, thins when hot

• Thins when cold, thickens when hot

• Becomes solid

• Remains constant

Tags

NGSS.MS-PS1-4

What is the purpose of multi-grade oils?

• To reduce fuel economy

• To simplify oil changes

• To increase wear on the engine

• To provide both cold startup properties and high temperature thickness

What is the viscosity index of synthetic based oils?

• 100

• 200

• 250

• 150

What is the recommended viscosity grade for an engine with high operating oil temperature?

• 10W30

• 0W5

• 20W50

• 15W50

What are the benefits of selecting the correct viscosity grade for your engine?

• Increase wear, reduce fuel economy, unlock horsepower

• Reduce wear, improve fuel economy, unlock horsepower

• Increase wear, improve fuel economy, reduce horsepower

• Reduce wear, reduce fuel economy, increase horsepower

Tags

NGSS.MS-ETS1-1