Engine Cooling System Quiz

What is the purpose of the radiator in an engine cooling system?

• To store fuel

• To cool the coolant

• To filter oil

• To ignite the air-fuel mixture

What is the role of the coolant in the engine cooling system?

• To lubricate engine parts

• To cool the engine

• To clean the fuel

• To provide electrical insulation

What is the function of the thermostat in the cooling system?

• To control the flow of coolant

• To filter the air

• To inject fuel

• To ignite the air-fuel mixture

What percentage of total engine heat is removed by the cooling system?

• 25 percent

• 35 percent

• 45 percent

• 55 percent

What is the primary purpose of the engine cooling system?

• To increase engine temperature

• To remove heat from the engine assembly

• To reduce fuel consumption

• To increase engine power

What percentage of total engine heat is NOT removed by the cooling system?

• 35 percent

• 45 percent

• 55 percent

• 65 percent

What is the radiator used to remove heat from?

• The engine oil

• The coolant

• The air intake

• The exhaust gases

Which component is NOT part of the radiator system shown in the diagram?

• Inlet tank

• Outlet tank

• Transmission oil cooler

• Fuel injector

In a reverse flow cooling system, where does the coolant flow first?

• Through the engine block then the head

• Through the head then the engine block

• Through the exhaust system then the head

• Through the fuel injectors then the engine block

Why were expansion plugs not developed?

• To cover up holes made by the casting process

• To protect the engine block

• To pop out in the event of coolant freezing

• To enhance engine performance