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Worksheets

Charging Systems

Total questions: 51

Worksheet time: 47mins

Name
Class
Date
1.

Alternator rebuild typically involves all of the following steps except:

a)

Testing the Diodes

b)

Testing the Stator

c)

Replacing the Harmonic Balancer

d)

Replacing The defective Bearings

2.

During a 12-volt charging system voltmeter test, all electrical accessories are on when checking ____ voltage.

a)

Base

b)

Load

c)

No Load

d)

Cranking Load

3.

An electronic voltage regulator cannot be repaired.

a)

True

b)

False

4.

To reduce output of the alternator, the electronic voltage regulator introduces more resistance between the rotor windings and battery.

a)

True

b)

False

5.

Most modern laptop computers and diagnostic tablets have a scope function.

a)

True

b)

False

6.

If the no-load voltage is more than 2–3 volts higher than base voltage, the alternator is overcharging the battery.

a)

True

b)

False

7.

The only way to obtain accurate charging system test results is to use a digital VOM (volt-ohm-ammeter).

a)

True

b)

False

8.

Reversing polarity of electrical connections can destroy circuits in the regulator and severely damage alternator diodes.

a)

True

b)

False

9.

The alternator pulley is usually brazed onto the end of the rotor shaft.

a)

True

b)

False

10.

An alternator fan cools windings and diodes to prevent overheating and damage.

a)

True

b)

False

11.

If the alternator comes out from the side of the engine compartment, you may have to remove the inner fender apron to gain access to the alternator.

a)

True

b)

False

12.

The component that is turned by the alternator drive belt and creates a rotating magnetic field is the

a)

Rotor

b)

Stator

c)

Diode Trio

d)

Rectifier

13.

Which of the following is not a type of alternator belt?

a)

Ribbed

b)

V

c)

cogged V

d)

Integrated

14.

Hybrid vehicle charging system problems are being discussed. Technician A says that an HV battery that will not hold a proper electrical charge will set a diagnostic trouble code. Technician B says that loose HV cable connections will not affect electric drive train performance. Who is correct?

a)

Tech A

b)

Tech B

c)

Both

d)

Neither

15.

When Removing an Altenator always remove the __________

a)

Negative Cable

b)

Positive Cable

c)

Both

d)

The Fuse or relay

16.

A Good test for testing the Altenator is to Disconnect the battery

a)

True

b)

False

17.

An overcharging system does not affect the battery.

a)

True

b)

False

18.

What Part is Shown

a)

Rotor

b)

Coils

c)

Stator

d)

Rectifier

19.

What part is Shown

a)

Stator

b)

Rotor

c)

Rectifier

d)

Armature

20.

A Charging system component that adjust voltage needed by the system

a)

Voltage Regulator

b)

Rectifier

c)

Armature

d)

Biased Sensor

21.

Corrosion on the battery Terminals will create resistance in the charging circuit

a)

true

b)

False

22.

A Fully Charged Battery is

a)

12V

b)

12.2V

c)

12.6V

d)

13-15V

23.

The Alternator Pulley is Driven by the Drive (a)  

24.

The Alternator rectifies AC Voltage into Usable (a)   Voltage

25.

A Common Alternator Belt Problem is

a)

Glazed

b)

Contaminated

c)

Misadjusted

d)

All The above

26.

What is an Example of a charging system defect

a)

Cracked alternator case

b)

Loose battery Terminals

c)

Worn Belt Tensioner

d)

All the above

27.

V type belts are only used for A/C systems

a)

True

b)

False

28.

What is the function of the alternator in a vehicle's electrical system?

a)

To power the headlights

b)

To charge the battery and power the electrical system when the engine is running

c)

To start the engine

d)

To control the air conditioning system

29.

What could be a possible symptom of a failing alternator?

a)

The vehicle's speed suddenly increases

b)

The engine oil level drops

c)

The battery warning light on the dashboard comes on or the vehicle has difficulty starting

d)

The vehicle's fuel efficiency improves

30.

Technician A says that a loose alternator belt can cause the alternator to fail. Technician B says that a loose alternator belt can cause the battery to overcharge. Who is right?

a)

A

b)

B

c)

Both

d)

Neither

31.
An alternator _____ consists of field windings mounted on a shaft.
a)
stator
b)
rotor assembly
c)
rectifier bridge
d)
diode trio
32.
Alternator brushes ride on _____ to feed current to the field windings.
a)
bearings
b)
fan teeth
c)
slip rings
d)
hair
33.
The alternator _____ changes alternating current into direct current.
a)
transistor
b)
stator
c)
rectifier
d)
regulator
34.
An alternator _____ consists of three groups of windings and produces the electrical output of the alternator.
a)
transistor
b)
stator
c)
rectifier
d)
regulator
35.
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
36.
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
37.
Alternator _____ and electrical _____ determine whether the regulator increases or decreases charging output.
a)
size, shape
b)
speed, load
c)
load, speed
d)
brand, strength
38.
A(n) _____ may be used to measure battery temperature so the charging system can alter charging output as needed.
a)
thermometer
b)
battery thermistor
c)
barometer
d)
widget
39.
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
40.
Which of the following is not a type of alternator belt?
a)
V.
b)
Ribbed
c)
Cogged V.
d)
Integrated.
41.
Which of the following components do hybrid vehicles use to recharge the HV battery?
a)
Hybrid control module.
b)
Voltmeter
c)
HV power control module
d)
Motor-generator
42.
Technician A says some overcharging is okay. Technician B says overcharging can result inbattery overheating. Who is right?
a)
Technician A Only
b)
Technician B Only
c)
Both Technician A and B
d)
Neither Technician A nor B
43.
The _____ is an ammeter, voltmeter, or warning light that informs the driver of charging system condition.
a)
charge indicator
b)
DVOM
c)
tachometer
d)
resistor branch
44.
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
45.
Excessive output can be caused by a faulty battery.  
a)
True
b)
False
46.
Charging batteries can give off hydrogen and oxygen.
a)
True
b)
False
47.

True or False: An alternator produces a Alternating Current (AC).

a)

True

b)

False

48.

What is the name of an electrical device that only allows current flow in one direction. Otherwise known as a electrical check valve?

a)

Fuse

b)

Diode

c)

Photocell

d)

Multi-meter

49.

What is the purpose of the diode in the charging system?

a)

Transform the AC voltage from the alternator into DC voltage

b)

Transform the DC voltage from the alternator into AC voltage

50.

On the common Voltage Rectifier how many diodes are used to convert AC to DC?

a)

2

b)

4

c)

6

d)

8

51.

Why does an alternator use a internal or external fan?

a)

To keep the EPA happy

b)

To help cool the engine

c)

To cool off the diodes preventing damage

d)

To make the alternator cool looking

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