Worksheetscooling 2
Total questions: 20
Worksheet time: 7mins
What part is this?
Thermometer
Thermostat
Heater Core
Water Pump
What part is this?
Turbocharger
Alternator
Water Pump
Fuel Pump
Approximately what temperature will the antifreeze freeze if mixed 50% water and 50% antifreeze?
212oF
0oF
32oF
-32oF
What cooling system part will heat the passenger compartment?
Cabin Air Filter
Evaporator
Heater Core
Thermostat
What is the purpose of the radiator?
remove heat from the coolant
keep the coolant at 195oF
Add heat to the coolant
Slow down the air through the engine compartment
The purpose of the radiator cap is to increase the pressure of your cooling system.
True
False
A technician says coolant mixes with engine oil to help with cooling
True
False
The water pump on an engine is designed to
keep water out of the fuel injectors.
purify water and make it available to both the operator and the engine.
keep water out of the oil system.
circulate water through the cooling system.
The boiling point of the coolant can be raised if the cooling system is ___________.
smaller
open
reverse osmosis
pressurized
The water pump on an engine is designed to
keep water out of the fuel injectors.
purify water and make it available to both the operator and the engine.
keep water out of the oil system.
circulate water through the cooling system.
What is the main type of engine used in most automobiles?
internal combustion engine
hybrid engine
steam engine
electric engine
What are the four strokes in a four-stroke internal combustion engine?
intake, compression, ignition, and exhaust
intake, compression, combustion, and exhaust
inlet, compression, combustion, and exhaust
intake, compression, ignition, and emission
What is the purpose of the engine cooling system?
Improve engine performance
Increase fuel efficiency
Reduce engine noise
Regulate engine temperature and prevent overheating.
An engine does not reach operating temperature while being driven. Which of these could be the cause?
A slipping water pump belt
A stuck open thermostat
A stuck closed thermostat
A clogged radiator passage
What happens when the engine is cold in relation to the thermostat?
The thermostat opens
The thermostat closes
The thermostat regulates fuel flow
The thermostat increases engine speed
What is the purpose of the jiggle valve 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 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
The Thermostat will open once the coolant reaches the optimum operating temperature. The coolant then flows to where in order to cool down?
Expansion tank
Coolant reservoir
Radiator
Bypass valve
The boiling point of the coolant can be raised if the cooling system is ___________.
smaller
open
reverse osmosis
pressurized
Technician A says that coolant can be a variety of colors with green and orange being common. Technician B says that coolant needs to be mixed with water to provide the best protection against freezing and boiling. Who is correct?
Technician A
Technician B
Both Technician A and Technician B
Neither Technician A nor Technician B
