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WorksheetsAlternator Operation Re-cap
Total questions: 16
Worksheet time: 32mins
Name
Class
Date
1.
The alternator is a device for changing mechanical energy into _____ energy.
a)
potential
b)
chemical
c)
thermal
d)
electrical
2.
Technician A believes that once an engine starts running, the engine crankshaft pulley powers the alternator to supply electricity to a car’s electrical systems. Technician B feels a battery is a car’s sole electrical supplier. Who is right?
a)
Technician A Only
b)
Technician B Only
c)
Both Technician A and B
d)
Neither Technician A nor B
3.
An alternator _____ consists of field windings mounted on a shaft.
a)
stator
b)
rotor assembly
c)
rectifier bridge
d)
diode trio
4.
Alternator brushes ride on _____ to feed current to the field windings.
a)
bearings
b)
fan teeth
c)
slip rings
d)
hair
5.
The alternator _____ changes alternating current into direct current.
a)
transistor
b)
stator
c)
rectifier
d)
regulator
6.
An alternator _____ consists of three groups of windings and produces the electrical output of the alternator.
a)
transistor
b)
stator
c)
rectifier
d)
regulator
7.
A voltage regulator controls alternator output by changing the amount of current flowing through the _____.
a)
field windings
b)
battery cable
c)
fusebox
d)
diode
8.
The alternator current must be _____ into direct current before entering the vehicle’s electrical system.
a)
forward biased
b)
reverse biased
c)
rectified
d)
inverted
9.
The voltage regulator keeps alternator output at a preset charging voltage of approximately _____ to _____ volts.
a)
12-14
b)
12-16
c)
12.0-12.6
d)
13-15
10.
Alternator _____ and electrical _____ determine whether the regulator increases or decreases charging output.
a)
size, shape
b)
speed, load
c)
load, speed
d)
brand, strength
11.
Which of the following is not a component of a typical 12-volt charging system?
a)
voltage regulator
b)
drive belt
c)
battery
d)
ignition switch
12.
The component that is turned by the alternator drive belt and creates a rotating magnetic field is the:
a)
pulley
b)
rotor
c)
stator
d)
diode trio
13.
To reduce alternator output, the voltage regulator places more resistance between the:
a)
battery and the field windings.
b)
rotor and the stator
c)
alternator pulley and the stator
d)
alternator brushes and slip rings
14.
Which of the following is not a type of alternator belt?
a)
V belt
b)
Multi-rib belt
c)
Serpentine belt
d)
B section belt
15.
Technician A says over-charging is okay. Technician B says over-charging can result in the battery overheating. Who is right?
a)
Technician A Only
b)
Technician B Only
c)
Both Technician A and B
d)
Neither Technician A nor B
16.
The _____ is the percentage of time that current is fed to the alternator’s field windings.
a)
amperage rating
b)
duty cycle
c)
wattage
d)
I.D.10-T
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