Diagnosing and Repairing Cooling and Lubricating Systems



1.	Which of the following can help temporarily cool an overheated engine?
	A.	Running the heater at maximum output.
	B.	Running the air conditioner at maximum output.
	C.	Turning the heater and/or air conditioner off.
	D.	Opening the engine compartment hood.

2.	What is the risk of working near a cooling fan when the ignition switch is off?
	A.	It can still emit static electricity.
	B.	Electric fans may still run.
	C.	The fan blades may be hot.
	D.	None of the above.

3.	What is the average pressure range for most cooling systems?
	A.	13-18 pounds.
	B.	23-28 pounds.
	C.	28-38 pounds.
	D.	38-43 pounds.

4.	When is it safe to remove the cooling system’s pressure cap?
	A.	When the engine is running.
	B.	When the engine overheats.
	C.	When the engine has cooled down.
	D.	All of the above.

5.	Which of the following personal protective equipment items should be worn when working with the cooling system?
	A.	Protective gloves.
	B.	Long sleeves.
	C.	Face shield.
	D.	All of the above.

6.	A small, quick taste is the recommended way to determine the difference between fluids such as engine oil and antifreeze.
	A.	True.
	B.	False.

7.	When monitoring coolant temperature, what may be at fault if the temperature on the coolant temperature gauge display is not close to the monitored temperature?
	A.	The gauge.
	B.	The temperature sensor.
	C.	The wiring.
	D.	All of the above.

8.	Which of the following engine oils meets both high- and low-viscosity requirements?
	A.	High viscosity.
	B.	Low viscosity.
	C.	Multi-viscosity.
	D.	None of the above.

9.	What can help you determine which viscosity grade of oil to use in a vehicle?
	A.	Check your stock and use the oil that is most plentiful.
	B.	Select oil based on engine size.
	C.	Check the vehicle service information.
	D.	All of the above.

10.	Safety glasses, a long-sleeved shirt, and a cap are recommended to help protect a technician from oil splashes.
	A.	True.
	B.	False.

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