Question 1

What is the voltage of this battery pair when measured at the + and - cables?

Accepted Answer

A) 12 volts 
B) 1000 volts 
C) 24 volts 
D) 500 volts 
A) 12 volts 
B) 1000 volts 
C) 24 volts 
D) 500 volts A

Question 2

Which of these is the most accurate test to determine the condition of a battery?

Accepted Answer

A) Hydrometer test 
B) Open circuit voltage (OCV) test 
C) Voltage drop test 
D) Load or capacity test 
A) Hydrometer test 
B) Open circuit voltage (OCV) test 
C) Voltage drop test 
D) Load or capacity test D

Question 3

Technician A says that battery load test loads the battery to one-half of its CCA rating. Technician B says that a good battery should be able to maintain higher than 9.6 volts for a 25 second test period. Who is right?

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 A

Question 4

Technician A says that all battery connections should be inspected for corrosion. Technician B says that battery cables should be checked for corrosion and replaced as needed. Who is right?

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 5

Which of these is a measure of how well a battery can create current?

Accepted Answer

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

Question 6

Vehicles equipped with diesel engines may have two batteries connected in parallel in order to provide additional current at the same voltage. Technician A says to successfully test the batteries, they should be disconnected and tested separately. Technician B says that a fault in one battery has NO effect on the other battery. Who is right?

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 7

According to the text, hybrid vehicle high voltage batteries can have voltages as high as ________.

Accepted Answer

A) 144 volts 
B) 36 volts 
C) 300 volts 
D) 14 volts 
A) 144 volts 
B) 36 volts 
C) 300 volts 
D) 14 volts

Question 8

Technician A says that electronic conductance testing can determine CCA, state-of-charge, and voltage of the battery. Technician B says that electronic conductance testing can determine if there is a bad cell, requiring battery replacement. Who is right?

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 9

During load testing, battery voltage should not drop below ________.

Accepted Answer

A) 8.6 
B) 9.6 
C) 10.5 
D) 7.5 
A) 8.6 
B) 9.6 
C) 10.5 
D) 7.5

Question 10

Technician A says that an AGM battery can be charged with any battery charger. Technician B says that an AGM battery requires a charger specially designed for charging AGM batteries. Who 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 11

Technician A says that dynamic voltage is the voltage (usually of a battery) that exists without a load being applied. Technician B says that open circuit voltage (OCV) is the voltage of the power source (battery) with the circuit in operation. Who is right?

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 12

All of these are part of the 3-minute charge test, EXCEPT ________.

Accepted Answer

A) Connect battery charger and voltmeter to the battery terminals 
B) Connect battery charger and ammeter to the battery terminals 
C) At the end of three minutes, read the voltmeter 
D) Charge the battery at a rate of 40 amperes for 3 minutes 
A) Connect battery charger and voltmeter to the battery terminals 
B) Connect battery charger and ammeter to the battery terminals 
C) At the end of three minutes, read the voltmeter 
D) Charge the battery at a rate of 40 amperes for 3 minutes

Question 13

What is the most common location for a hybrid vehicle high voltage battery pack?

Accepted Answer

A) Under or behind the rear seat 
B) Under the passenger side floor boards 
C) Under the hood 
D) None of these 
A) Under or behind the rear seat 
B) Under the passenger side floor boards 
C) Under the hood 
D) None of these

Exam 51: Battery Testing and Service

What is the voltage of this battery pair when measured at the + and - cables?

Which of these is the most accurate test to determine the condition of a battery?

Technician A says that battery load test loads the battery to one-half of its CCA rating. Technician B says that a good battery should be able to maintain higher than 9.6 volts for a 25 second test period. Who is right?

Technician A says that all battery connections should be inspected for corrosion. Technician B says that battery cables should be checked for corrosion and replaced as needed. Who is right?

Which of these is a measure of how well a battery can create current?

According to the text, hybrid vehicle high voltage batteries can have voltages as high as ________.

Technician A says that electronic conductance testing can determine CCA, state-of-charge, and voltage of the battery. Technician B says that electronic conductance testing can determine if there is a bad cell, requiring battery replacement. Who is right?

During load testing, battery voltage should not drop below ________.

Technician A says that an AGM battery can be charged with any battery charger. Technician B says that an AGM battery requires a charger specially designed for charging AGM batteries. Who is correct?

Technician A says that dynamic voltage is the voltage (usually of a battery) that exists without a load being applied. Technician B says that open circuit voltage (OCV) is the voltage of the power source (battery) with the circuit in operation. Who is right?

All of these are part of the 3-minute charge test, EXCEPT ________.

What is the most common location for a hybrid vehicle high voltage battery pack?

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