Tribology and Plant Lubrication

What is the primary goal of lubrication?

• To increase friction

• To reduce wear and heat

• To add colour

• To increase surface roughness

Which of the following is NOT a function of lubricating oil?

• Reduce friction

• Provide insulation

• Increase wear

• Cool surfaces

What is the term for the resistance encountered when one body moves relative to another?

• Lubrication

• Viscosity

• Friction

• Erosion

What is the lowest temperature at which oil will flow called?

• Pour Point

• Flash Point

• Cloud Point

• Boiling Point

Which type of wear occurs in the presence of hard particles?

• Sliding wear

• Abrasive wear

• Erosive wear

• Adhesive wear

Which additive is used to control the viscosity of multi-grade oils?

• Rust Inhibitors

• Anti-Wear Agents

• Viscosity Index Improvers

• Detergents

What kind of oil is derived from naturally occurring petroleum?

• Synthetic oil

• Paraffinic oil

• Naphthenic oil

• Mineral oil

Which property is essential for oils that must flow at low temperatures?

• High viscosity

• High flash point

• Low pour point

• High density

What is the term for the temperature at which wax crystals become visible in oil?

• Flash Point

• Cloud Point

• Pour Point

• Fire Point

What is the primary purpose of oxidation inhibitors?

• To increase wear

• To reduce oxygen attack

• To add colour

• To increase temperature