152 Engines L2 L5

What form of lubrication relies on a thin film on the surface of the components?

• Hydrolastic

• Boundary

• Hydrodynamic

• Hygroscopic

What are the two types of oil used in modern engines?

• Synthetic & Natural

• 10w/30

• Crude & Grease

• Diesel & Petrol

What type of pump is pictured?

• Crescent

• Eccentric

• Gear type

• Vane type

What type of pump is pictured?

• Crescent

• Eccentric

• Gear type

• Vane type

Which lubrication system is being described? Pumped oil, from sump, through filter, to oil galleries, all oil is filtered.

• Blow-by

• Bypass

• Full flow

• Cross flow

What happens when the filter element is blocked?

• Relief valve opens, oil bypasses filter

• Relief valve opens, routing oil away from pump

• Strainer does job of filter

• Oil pump switches off

What is name of heat transfer through a solid object?

• Conduction

• Convection

• Radiation

• Thermosiphon

When heat energy is released it travels upward, as it cools it travels downward. What is this known as?

• Conduction

• Convection

• Radiation

• Thermosiphon