L1AM05

What is NOT the purpose of antifreeze?

• To inhibit corrosion

• To reduce the freezing point.

• To lubricate the water pump.

• To lower the boiling point.

What is the purpose of the engine radiator?

• To heat the passenger compartment.

• To lubricate the engine.

• To heat the engine.

• To cool the engine coolant.

What is the purpose of the thermostat?

• To heat the passenger compartment.

• To heat the engine radiator.

• To control the coolant flow to the radiator.

• To cool the engine radiator.

What turns the water pump?

• The cam shaft.

• The flywheel

• The crankshaft.

• The radiator fan.

Why should you not remove the radiator/coolant cap on a hot engine?

• The water may heat up instantly

• The water may cool instantly.

• The water may boil instantly.

• The water may freeze instantly.

What is the purpose of the cooing system.

• To keep the engine at an optimum temperature.

• To cool the engine.

• To keep radiator cool.

• To heat the passenger compartment.

What is not a symptom of overheating?

• Low fuel consumption.

• Low temperature gauge reading.

• Low oil pressure

• Low engine power.

On a modern car when does the cooling fan operate?

• When the engine gets hot.

• When the radiator gets hot

• When the passenger compartment gets hot.

• When the ECU tells it to.

Which is not a component of the cooling system?

• Inlet manifold

• Cooling fan

• Radiator

• Thermostat.

What is the usual ratio of antifreeze to water in a cooling system.

• 5%

• 10%

• 50%

• 100%