1) What is the primary function of an alternator? a) To charge the battery b) To power the starter motor c) To regulate fuel injection d) To control engine timing 2) What type of current does an alternator produce? a) DC b) AC c) Both AC and DC d) Neither AC nor DC 3) What component converts AC to DC in an alternator? a) Diode trio b) Voltage regulator c) Rotor d) Stator 4) What is the typical voltage output of an alternator? a) 6V b) 12V c) 13.5-14.5V d) 24V 5) What drives the alternator? a) Engine crankshaft b) Serpentine belt c) Starter motor d) Battery 6) What happens if the alternator is not charging? a) Battery will overcharge b) Battery will drain c) Engine will stall d) Headlights will dim 7) What is the purpose of the voltage regulator? a) To increase voltage output b) To decrease voltage output c) To regulate voltage output d) To control current output 8) What is a common sign of a failing alternator a) Loud grinding noise b) Dimming headlights c) Engine won't start d) All of the above 9) How is the alternator usually mounted? a) On the engine block b) On the firewall c) On the frame d) On the battery 10) What is the typical lifespan of an alternator? a) 1-2 years b) 3-5 years c) 7-10 years d) 15-20 years

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