Deck 51: Battery Testing and Service

Question 1

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

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

Answer 1

12 volts

Question 2

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

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

Answer 2

300 volts

Question 3

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

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

Answer 3

Under or behind the rear seat

Question 4

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?

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?

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?

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

Question 7

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

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 8

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

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

Question 9

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

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

Question 10

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?

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 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?

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

Question 12

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?

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

Question 13

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?

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