Question 1

Registering a new battery is sometimes needed because ________.

Accepted Answer

A)  the number of cells of the replacement battery must be inputted into the PCM memory 
B)  it resets the algorithm back to optimal charging voltage 
C)  allows a different battery size to be used in the vehicle 
D)  the battery warranty may have expired 
A)  the number of cells of the replacement battery must be inputted into the PCM memory 
B)  it resets the algorithm back to optimal charging voltage 
C)  allows a different battery size to be used in the vehicle 
D)  the battery warranty may have expired B

Question 2

The maximum acceptable AC ripple voltage is ________.

Accepted Answer

A)  0.050 V (50mV) 
B)  0.400 V (400mV) 
C)  0.010 V (10mV) 
D)  0.100 V (100 mV) 
A)  0.050 V (50mV) 
B)  0.400 V (400mV) 
C)  0.010 V (10mV) 
D)  0.100 V (100 mV) B

Question 3

This voltage reading was obtained while cranking the engine. The indicated reading (0.816 V) is ________.

Accepted Answer

A)  too high 
B)  too low 
C)  an inconclusive measurement 
D)  incorrectly done 
A)  too high 
B)  too low 
C)  an inconclusive measurement 
D)  incorrectly done A

Question 4

Which of these tests is specified by many manufacturers?

Accepted Answer

A)  Conductance test 
B)  Resistance test 
C)  Reluctance test 
D)  Both A and B 
A)  Conductance test 
B)  Resistance test 
C)  Reluctance test 
D)  Both A and B

Question 5

The purpose and function of a stop/start system is to ________.

Accepted Answer

A)  reduce noise and vibration at idle 
B)  reduce noise, vibration, and harshness 
C)  improve fuel economy and reduce exhaust emissions 
D)  replace the starter motor saving weight 
A)  reduce noise and vibration at idle 
B)  reduce noise, vibration, and harshness 
C)  improve fuel economy and reduce exhaust emissions 
D)  replace the starter motor saving weight

Question 6

What type of meter can be used to measure battery drain, starter amperage draw, and alternator output without having to disconnect wiring connections?

Accepted Answer

A)  Voltmeter 
B)  Ohmmeter 
C)  Clamp-on ammeter 
D)  Any of the above 
A)  Voltmeter 
B)  Ohmmeter 
C)  Clamp-on ammeter 
D)  Any of the above

Question 7

A battery conductance test is being performed and the test results shows that the battery is discharged. Technician A says that the battery may or may not need to be replaced. Technician B says that the battery should be charged and retested. Which technician is correct?

Accepted Answer

A)  Technician A only 
B)  Technician B only 
C)  Both technicians A and B 
D)  Neither technician A nor B 
A)  Technician A only 
B)  Technician B only 
C)  Both technicians A and B 
D)  Neither technician A nor B

Question 8

Electrical resistance of the cranking and charging circuits is best determined by what type of test?

Accepted Answer

A)  Resistance testing using an ohmmeter 
B)  Ammeter testing of the system to determine the current flow 
C)  Checking the wiring and cables with an ohmmeter 
D)  Voltage drop testing 
A)  Resistance testing using an ohmmeter 
B)  Ammeter testing of the system to determine the current flow 
C)  Checking the wiring and cables with an ohmmeter 
D)  Voltage drop testing

Question 9

Technician A says that all battery connections should be tested for corrosion. Technician B says that battery cables showing corrosion may be caused by a sulfated battery. Which technician is correct?

Accepted Answer

A)  Technician A only 
B)  Technician B only 
C)  Both technicians A and B 
D)  Neither technician A nor B 
A)  Technician A only 
B)  Technician B only 
C)  Both technicians A and B 
D)  Neither technician A nor B

Question 10

The voltmeter leads are connected as shown. A reading of 0.860 volts is observed while cranking the engine. What does this mean?

Accepted Answer

A)  This is an inconclusive test 
B)  This is a normal reading 
C)  The battery needs to be charged 
D)  The cable and post need to be cleaned 
A)  This is an inconclusive test 
B)  This is a normal reading 
C)  The battery needs to be charged 
D)  The cable and post need to be cleaned

Question 11

What test is being performed in this illustration?

Accepted Answer

A)  Battery voltage test 
B)  Alternator output voltage drop test 
C)  Alternator ground circuit test 
D)  Charging current test 
A)  Battery voltage test 
B)  Alternator output voltage drop test 
C)  Alternator ground circuit test 
D)  Charging current test

Question 12

If the starter turns slowly when engaged, a possible cause is ________.

Accepted Answer

A)  a open ignition switch 
B)  a disconnected battery cable 
C)  a worn or defective starter 
D)  a defective solenoid 
A)  a open ignition switch 
B)  a disconnected battery cable 
C)  a worn or defective starter 
D)  a defective solenoid

Question 13

An AGM battery should never be charged with more than ________ volts.

Accepted Answer

A)  14 
B)  15 
C)  12 
D)  All of these are too high 
A)  14 
B)  15 
C)  12 
D)  All of these are too high

Question 14

Slow cranking can be caused by all of the following, EXCEPT ________.

Accepted Answer

A)  corroded or dirty battery cables 
B)  open neutral safety switch 
C)  engine mechanical problems 
D)  a low or discharged battery 
A)  corroded or dirty battery cables 
B)  open neutral safety switch 
C)  engine mechanical problems 
D)  a low or discharged battery

Question 15

Which of these conditions will disable the vehicle stop/start system?

Accepted Answer

A)  Hood open 
B)  Engine idling 
C)  Foot OFF of the accelerator pedal 
D)  Fully charged battery 
A)  Hood open 
B)  Engine idling 
C)  Foot OFF of the accelerator pedal 
D)  Fully charged battery

Question 16

Battery testers usually use what battery rating?

Accepted Answer

A)  CCA 
B)  Amp-hour 
C)  Reserve capacity 
D)  CA 
A)  CCA 
B)  Amp-hour 
C)  Reserve capacity 
D)  CA

Exam 13: Starting and Charging System Diagnosis

Registering a new battery is sometimes needed because ________.

The maximum acceptable AC ripple voltage is ________.

This voltage reading was obtained while cranking the engine. The indicated reading (0.816 V) is ________.

Which of these tests is specified by many manufacturers?

The purpose and function of a stop/start system is to ________.

What type of meter can be used to measure battery drain, starter amperage draw, and alternator output without having to disconnect wiring connections?

A battery conductance test is being performed and the test results shows that the battery is discharged. Technician A says that the battery may or may not need to be replaced. Technician B says that the battery should be charged and retested. Which technician is correct?

Electrical resistance of the cranking and charging circuits is best determined by what type of test?

Technician A says that all battery connections should be tested for corrosion. Technician B says that battery cables showing corrosion may be caused by a sulfated battery. Which technician is correct?

The voltmeter leads are connected as shown. A reading of 0.860 volts is observed while cranking the engine. What does this mean?

What test is being performed in this illustration?

If the starter turns slowly when engaged, a possible cause is ________.

An AGM battery should never be charged with more than ________ volts.

Slow cranking can be caused by all of the following, EXCEPT ________.

Which of these conditions will disable the vehicle stop/start system?

Battery testers usually use what battery rating?

The Diagnostic Process

Gasoline, Alternative Fuels, and Diesel Fuels

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Engine and Misfire Diagnosis

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Map and Maf Sensors

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