Engine Lubrication System Video-Quiz

What is the primary purpose of the engine lubrication system?

• To increase engine speed

• To reduce friction and remove heat

• To enhance fuel efficiency

• To decrease engine noise

How is lubricant delivered to the most vital engine parts?

• By manual application

• Under pressure

• By splash feeds

• By gravity

What activates the oil pump in the lubrication cycle?

• Engaging the clutch

• Pressing the accelerator

• Starting the engine

• Turning on the headlights

What is the function of the pressure relief valve in the lubrication system?

• To filter the oil

• To control the limit pressure

• To decrease oil temperature

• To increase oil pressure

Which type of oil pump features internal gear meshing?

• Diaphragm pump

• Piston pump

• Gerotor pump

• Centrifugal pump

Why is it important to replace the oil filter regularly?

• To reduce oil consumption

• To increase engine speed

• To ensure oil is cleansed of impurities

• To prevent oil from becoming too hot

What happens when the oil pressure in the lubrication system is low?

• The engine speed increases

• A warning light illuminates on the dashboard

• The oil filter is bypassed

• The engine shuts down

What additional features might a more complex lubrication system include?

• Fuel injectors

• Oil temperature sensors

• Air filters

• Turbochargers

What is the role of oil control rings in the engine?

• To filter the oil

• To cool the engine

• To remove excess oil from cylinder walls

• To increase oil pressure

Why are regular oil changes crucial for engine maintenance?

• To decrease engine speed

• To increase fuel consumption

• To prevent engine wear

• To enhance engine noise