WorksheetsAlternator Prelim
Total questions: 19
Worksheet time: 5hrs 45mins
What is the purpose of the automotive charging system? Select all that are correct.
To start the engine
To keep the battery voltage maintained when the car is running
To keep the engine running
To power the accessories used inside the cabin (radio, wipers, and lights)
Which one of these best describes function of the alternator?
Electric generator that uses mechanical (engine) power to produce electricity
Ammeter, voltmeter, or warning light that warns the driver about charge condition
Wiring that connects the parts of the system.
Large device that stores electricity for use later on
True or False: An alternator produces a Alternating Current (AC).
True
False
True or False: Today's automobiles operate using direct current.
True
False
What is the name of an electrical device that only allows current flow in one direction. Otherwise known as a electrical check valve?
Fuse
Diode
Photocell
Multi-meter
What is the purpose of the diode in the charging system?
Transform the AC voltage from the alternator into DC voltage
Transform the DC voltage from the alternator into AC voltage
Based on the image above, which statement is true? (Mark all that are true)
The input voltage is Alternating Current
The output voltage is Positive voltage
The input voltage is Positive Only
The output voltage is Direct current
What parts of the alternator are found on the Alternator Rotor? Select all that are correct. (pg 536)
Field Coil Winding
Alternator Slip Rings
Pole Pieces
Voltage Rectifier
The alternator rotor spins inside the alternator stator.
True
False
The alternator brushes ride on the slip rings to make a electrical connection. (True/False)
True
False
On the common Voltage Rectifier how many diodes are used to convert AC to DC?
2
4
6
8
The alternator stator produces the electrical output. (True/False)
True
False
Why does an alternator use a internal or external fan?
To keep the EPA happy
To help cool the engine
To cool off the diodes preventing damage
To make the alternator cool looking
The alternator pulley spins what part inside the alternator?
The stator
The rotor
The voltage regulator
The voltage rectifier
The alternator is rotated by harnessing mechanical energy from the?
The crankshaft pulley
An external electric motor
The battery
Air spinning the fan on the alternator
What is the purpose of the Voltage Regulator? Select all that are correct.
Convert AC voltage to DC voltage
Control alternator output voltage
Prevent overcharging
Regulate battery voltage based on load
What is the purpose the battery thermistor in the charging system? (Select all that are correct)
To act as input to the voltage regulator based on battery load
To help supply more charge to a cold battery
To help supply less charge to a cold battery
To help supply less charge to a hot battery
What are the three types of charge indicators? (Select all that are true)
Warning Light
Voltmeter Indicator
Ammeter Indicator
Ohmmeter Indicator
Lab work: Using a car in the shop or AllData tell if your car has an internal/external cooling fan, what kind of charge indicator, and a internal or external voltage regulator. Once completed select the type of charge indicator below.
Voltmeter Indicator
Ammeter Indicator
Warning Light
