Diagnosing and Repairing Lighting Systems



1.	What precaution must be taken when working with halogen bulbs?
	A.	Wear eye protection.
	B.	Allow bulbs to cool before handling.
	C.	Use a clean cloth to handle the bulbs.
	D.	All of the above.

2.	Flasher units are among the few automotive parts that are calibrated uniformly across all circuits.
	A.	True.
	B.	False.

3.	When working with thermoelectric gauges using instrument voltage regulators (IVRs):
	A.	Disconnect the IVR prior to repair.
	B.	Always ground the sending unit lead wire.
	C.	Never ground the sending unit lead wire.
	D.	Follow warning light test and repair procedures.

4.	If the brake warning light does not come on with the ignition key in the run position:
	A.	Repair the light system immediately.
	B.	The brake system is working correctly.
	C.	The parking brake is released.
	D.	None of the above.

5.	What may be to blame if the brake warning light does not go out?
	A.	Brake system malfunction.
	B.	Faulty daytime running light control module.
	C.	Both a and b.
	D.	Neither a nor b.

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