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WorksheetsCooling system
Total questions: 35
Worksheet time: 12mins
Name this part
Thermostat
Radiator
Heater Core
Radiator Cap
Name this part
Water Pump
Radiator
Thermostat
Heater Core
Name this part
Radiator
Thermostat
Heater Core
Intercooler
Name this part
Evaporator
Thermostat
Heater Core
Radiator
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
This is a...
engine
thermostat
hose
radiator
water pump
Henry noticed his car was overheating and asked Samuel what the function of a water pump is:
uses an impeller to force coolant through the engine coolant passages.
stays closed until operating temperature is reached
stores coolant
primary heat exchanger for the vehicle engine
Samuel noticed that the radiator core (fin area) of his car got clogged with dirt and debris. What is the immediate effect?
poor coolant-to-air heat exchange
the coolant will not flow effectively
the cylinder head will warp
the radiator will breach
What senses the temperature of the coolant and allows the fluid to enter or exit the radiator?
radiator hose
water pump
thermostat
radiator cap
Which of the following is like a mini radiator to help with heating the passenger cabin?
cabin air filter
heater core
compressor
evaporator
What happens when pressure is increased in the cooling system by using a radiator cap?
increases the boiling point of the coolant
decreases the boiling point of the coolant
keeps the boiling point constant
changes the water to antifreeze ratio in the coolant
Approximately what temperature will the antifreeze freeze if mixed 50% water and 50%
antifreeze?
212 F (100 C)
122 F (50 C)
32 F (0 C)
-34 F (-37 C)
What is the purpose of the radiator?
remove heat from the coolant
add heat to the coolant
slow down the air through the engine compartment
keep the coolant at 195oF (91oF)
Cooler air is ____________, allowing more air and fuel to go into the combustion chamber
which leads to more power.
more turbulent
cloudy
less dense
denser
What type of water pump is run by electronic controls, only circulating coolant when
needed?
gear driven water pump
conventional belt driven mechanical water pump
electric water pump
timing belt driven water pump
Which if the following would be the most acidic on the pH scale?
3
6
7
10
WHAT IS THE PURPOSE OF THE COOLING FAN?
TO COOL THE ENGINE
TO COOL THE CAR
TO COOL THE TRANSMISSION
TO REMOVE THE HEAT FROM THE COOLANT IN THE RADIATOR
WHAT IS THE PURPOSE OF THE OVERFLOW TANK?
TO COLLECT EXTRA ENGINE OIL
TO COOL THE ENGINE
TO COLLECT COOLANT WHEN HOT AND RETURN TO RADIATOR WHEN COOLED
TO COLLECT COOLANT WHEN COLD AND RETURN TO RADIATOR WHEN HOT
WHAT IS THE NAME OF THIS PART?
RADIATOR
WATER PUMP
PRESSURE CAP
GOOSE NECK
EXPXNSION TANK
WHAT IS THE PURPOSE OF THE WATER JACKET?
TO KEEP THE ENGINE WARM WHEN IT IS COLD
TO CIRCULATE OIL AROUND THE ENGINE
TO CIRCULATE COOLANT AROUND THE ENGINE
TO REGULATE ENGINE TEMPERATURE
WHAT IS THE PURPOSE OF THIS SENSOR IN THE COOLING SYSTEM?
COOLS THE ENGINE
REGULATES THE ENGINE TEMPERATURE
TURNS THE COOLING FAN ON AND OFF
COOLS THE COOLANT
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 usual ratio of antifreeze to water in a cooling system.
5%
10%
50%
100%
Coolant getting into the cylinders may cause
Black smoke from under hood
Blue smoke from Muffler
Red smoke from the red-i-ator
White smoke from tailpipe
Testing coolant protection can be done with a
Hydrometer
Temperature probe
Pressure tester
Thermostat
If your a/c will not cool, you may be low on
Antifreeze
Water
Oil
Refrigerant
H.V.A.C. stands for....
Heat / Valve / Air / Cleaner
Hot / Valve / and / Cold
Hot / Vent / Air / Coolant
Heating / Ventilation / Air / Conditioning
If the evaporator drain gets plugged
The engine may overheat
Condensation may leak on floor inside the car
Thermostat may get stuck
Belt may break
PCM stands for....
Powertrain Control Module
Program Control Management
Power, Compression, Mode
Power, Computer, Module
A cooling system is a closed system which develops pressure to ...
Maintain engine temperature
Help circulation
Lower the freeze protection
Raise the boiling point
Heat in the vehicle is obtained by hot water circulating through the ...
Radiator
Heater hoses
Thermostat
Heater core
