Cooling Systems (1) Quiz

What are the two main cooling systems used in motor vehicles?

• Air cooling and water cooling

• Oil cooling and liquid cooling

• Water cooling and oil cooling

• Air cooling and oil cooling

What is the primary job of the cooling system in an engine?

• To prevent an over rich mixture developing

• To prevent engine parts from seizing

• To increase the output of the heating system

• To stop the exhaust from melting

Which type of thermostat has been superseded by the wax pellet type?

• Bellows thermostat

• Electric thermostat

• Hydraulic thermostat

• Vacuum thermostat

What is the purpose of the radiator pressure cap in a cooling system?

• To increase the boiling point of the coolant

• To decrease the boiling point of the coolant

• To control the flow of coolant through the engine

• To regulate the temperature of the coolant

What is the function of the water pump in a cooling system?

• To circulate the coolant around the engine

• To build up pressure in the cooling system

• To control the flow of coolant through the radiator

• To regulate the temperature of the coolant

What is the purpose of the jiggle pin in a wax thermostat?

• To release excess pressure from the cooling system

• To allow air to bleed from the system

• To regulate the flow of coolant through the engine

• To open and close the thermostat valve

What is the advantage of using V-belts to drive cooling fans and water pumps?

• They do not require lubrication and are quiet in operation

• They have a poor performance record

• They are noisy in operation

• They require lubrication

What is the purpose of the expansion tank in a cooling system?

• To eliminate wasteful discharge of coolant to the atmosphere

• To store excess coolant when the engine is hot

• To decrease the pressure in the cooling system

• To increase the pressure in the cooling system

What is the main reason for using a thermostat in a cooling system?

• To increase the efficiency of the engine

• To prevent the exhaust from melting

• To control the flow of coolant through the radiator

• To maintain the engine at operating temperature

What is the purpose of the vacuum valve in a cooling system?

• To open and close the thermostat valve

• To allow air to bleed from the system

• To regulate the flow of coolant through the engine

• To release excess pressure from the cooling system