WorksheetsBASIC ALTERNATOR & BATTERY ASSESSMENT II
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
1. Which one of these best describes function of the alternator?
a)
A. Electric generator that uses mechanical (engine) power to produce electricity
b)
B. Ammeter, voltmeter, or warning light that warns the driver about charge condition
c)
C. Wiring that connects the parts of the system.
d)
D. Large device that stores electricity for use later on
2.
2. The alternator is a device for changing mechanical energy into _____ energy.
a)
A. potential
b)
B. chemical
c)
C. thermal
d)
D. electrical
3.
3. 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)
A. Technician A Only
b)
B. Technician B Only
c)
C. Both Technician A and B
d)
D. Neither A or B
4.
4. Technician A says alternator rear bearings are frequently held in place with a small plate and screws. Technician B says alternator front bearings are usually press-fit. Who is right?
a)
A. Technician A Only
b)
B. Technician B Only
c)
C. Both Technician A and B
d)
D. Neither A or B
5.
5. The alternator current must be _____ into direct current before entering the vehicle’s electrical system.
a)
A. forward biased
b)
B. reverse biased
c)
C. rectified
d)
D. Inverted
6.
6. When using a DMM (Digital Multimeter) voltmeter function to check for a voltage drop, meter leads should be connected in which of the following ways?
a)
A. On the "positive" side of the circuit
b)
B. Across the component or circuit
c)
C. To any non-conductive material
d)
D. In series with the Circuit
7.
7. Two technicians are discussing a battery's state of charge. Technician A says a specific gravity of 1.225 at 80F indicates that a battery's state of charge is approximately 75%. Technician B says you can use a hydrometer to check battery state of charge on a maintenance free battery. Who is right?
a)
A. A only
b)
B. B only
c)
C. Both A and B
d)
D. Neither A nor B
8.
8. Using a DMM (Digital Multimeter), a fully charged 12 volt battery should indicate how much voltage on the open circuit voltage (OCV) test?
a)
A. 9.6 volts
b)
B. 4 volts per cell
c)
C. 1 volt per cell
d)
D. 12.6 volts
9.
9. When performing a load test on a battery, a technician finds that the battery voltage drops below specifications. Which of the following is the MOST likely action to perform?
a)
A. Recharge the battery and return it to service
b)
B. Recharge the battery and retest it
c)
C. Replace the battery
d)
D. Replace the voltage regulator
10.
10. Which of the following is correct regarding a series circuit?
a)
A. Highest resistance has most current
b)
B. Lowest resistance has most current
c)
C. Lowest resistance has highest voltage drop
d)
D. Highest resistance has highest voltage drop
11.
11. When a Digital Multimeter (DMM) is used to measure DC voltage and is connected in parallel to the load device, which of the following defines the reading?
a)
A. Amperage reading
b)
B. Voltage drop
c)
C. Voltage spike
d)
D. Pulse width modulation
12.
12. Two technicians are discussing testing a battery using an electronic conductance or continuity tester. Technician A says some of these testers can load test a battery. Technician B says you need to make sure that the ignition switch and all accessories are off. Who is right?
a)
A. A only
b)
B. B only
c)
C. Both A and B
d)
D. Neither A nor B
13.
13. Two technicians are discussing an alternator with zero output. Technician A says the field circuit may have an open circuit. Technician B says the fusible link may be open from the battery to the alternator. Who is right?
a)
A. A only
b)
B. B only
c)
C. Both A and B
d)
D. Neither A nor B
14.
14. Technician A says a loose serpentine alternator drive belt could cause overcharging. Technician B says undersized wiring between the alternator and the battery could cause undercharging. Who is right?
a)
A. A only
b)
B. B only
c)
C. Both A and B
d)
D. Neither A nor B
15.
15. Technician A says high-intensity discharge (HID) headlights are generally brighter and have a blue tint. Technician B says a defective turn signal bulb on one side can cause the turn signal on that side not to blink. Who is right?
a)
A. A only
b)
B. B only
c)
C. Both A and B
d)
D. Neither A nor B
16.
16. Technician A says you aim HID (High Intensity Discharge) headlights on a level floor with an unloaded vehicle. Technician B says when aiming any headlights, you must follow the state inspection specifications. Who is right?
a)
A. A only
b)
B. B only
c)
C. Both A and B
d)
D. Neither A nor B
17.
17. Technician A says an aiming screen will work on any headlight design to aim the headlights. Technician B says mechanical aimers are used on HID (High Intensity Discharge) headlights. Who is right?
a)
A. A only
b)
B. B only
c)
C. Both A and B
d)
D. Neither A nor B
18.
18. A dash indicator warning lamp does not light when the key is in the ON or START positions. What should you check first?
a)
A. Sending unit
b)
B. Wiring
c)
C. Battery level
d)
D. Bulb
19.
19. Checking alternator output on a bench tester:
a)
A. increases the risk of warranty returns and comebacks.
b)
B. measures the voltage and amp output of the alternator.
c)
C. improves the condition of the alternator.
d)
D. may short-circuit the voltage regulator.
20.
20. What are the concerns if the Alternator output is too high?
a)
A. The vehicles Accessories will not work.
b)
B. The Battery will overcharge and overheat.
c)
C. improves the condition of the alternator.
d)
D. may short-circuit the voltage regulator.
21.
21. The MIL is illuminated and a “Battery Module Deterioration” diagnostic trouble code (DTC) is stored. The cause could be a failed:
a)
A. high voltage battery.
b)
B. high voltage inverter.
c)
C. motor/generator.
d)
D. DC/DC converter.
22.
22. The power Wire leading to the Air bag will be what color?
a)
A. Red
b)
B. Yellow
c)
C. Black
d)
D. White
23.
23. When removing an Airbag the Battery power system
a)
A. Should be fully charged
b)
B. Battery should be disconnected and wait lights turned on to drain system of any electrical power.
c)
C. No need to change anything but air bag connector.
d)
D. A & C are both correct
24.
24. _____________ is/are fundamental to the automobile.
a)
A. A 12-volt storage battery
b)
B. An engine starting system
c)
C. A charging system
d)
D. All of the above
25.
25. A technician must always wear ______________ when working on a battery.
a)
A. Designer Clothes
b)
B. Earrings
c)
C. Tennis Shoes
d)
D. Safety Glasses
100 %
