Engine Lubrication System Quiz 2

What is the primary purpose of the engine lubrication system?

• Improve fuel economy

• Reduce friction and wear

• Increase engine noise

• Cool the radiator

Where is oil stored in a wet sump lubrication system?

• Oil cooler

• Oil pump

• Oil sump

• Oil filter

What component draws oil from the sump?

• Oil jet

• Oil pan

• Oil pump

• Crankshaft

What does the oil filter remove?

• Coolant

• Exhaust gases

• Contaminants and particles

• Spark residue

Where does the oil go immediately after leaving the oil pump?

• To the combustion chamber

• To the oil sump

• To the oil filter

• To the camshaft

What ensures oil reaches all moving parts in the engine?

• Oil jets only

• Piston movement

• A network of oil galleries

• Spark ignition

Which part is directly lubricated by oil jets?

• Crankshaft

• Camshaft

• Piston and cylinder wall

• Intake valves

What helps regulate oil pressure in the system?

• Crankcase vent

• Oil gauge

• Pressure relief valve

• Return spring

Why is oil viscosity important?

• It determines fuel type

• It affects ignition timing

• It influences flow and protection

• It increases horsepower

What is the main cause of oil degradation?

• Oxygen

• Heat and contaminants

• Water exposure

• Friction alone