Question 1

Which statement is TRUE regarding the internal grids in automotive batteries?

Accepted Answer

A)  The lead used to make the grid is enhanced with other elements for durability
B)  The grid is made mainly of lead
C)  Both A and B
D)  Neither A nor B C

Question 2

The largest percentage of automotive battery electrolyte is ________.

Accepted Answer

A)  Water
B)  Potassium phosphate
C)  Sulfuric Acid
D)  None of these A

Question 3

Each automotive battery cell has an electrical potential of how many volts?

Accepted Answer

A)  1.5 V
B)  12.6 V
C)  2.1 V
D)  None of these C

Question 4

Technician A says that maintenance-free batteries use a large amount of water. Technician B says that maintenance-free batteries use materials that reduce the amount of water used by the 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

Question 5

Reserve capacity is the number of minutes a battery can produce 10.5 volts with how many amps?

Accepted Answer

A)  25
B)  10
C)  30
D)  20

Question 6

An AGM battery differs from a conventional flooded battery in what way?

Accepted Answer

A)  The electrolyte is absorbed into glass separator and will not spill
B)  It does not contain lead
C)  Each cell has a voltage sensor
D)  It does not contain electrolyte

Question 7

Each cell of an automobile 12 volt battery can produce about ________ volts.

Accepted Answer

A)  1.2
B)  4
C)  2.1
D)  4.2

Question 8

Battery hold-down clamps or brackets help reduce ________, which can greatly reduce the capacity and life of any battery.

Accepted Answer

A)  Temperature
B)  Heat
C)  Vibration
D)  Cycling

Question 9

Cold cranking amps refers to the current a battery produce while sustaining 7.2 volts at what temperature?

Accepted Answer

A)  72 deg F
B)  32 deg F
C)  0 deg F
D)  -10 deg F

Question 10

Sponge lead is used for which battery components?

Accepted Answer

A)  Negative plates
B)  Positive plates
C)  Both A and B
D)  Neither A nor B

Question 11

Many GM vehicles use a group 78 size battery.

Accepted Answer

A) True 
 B)False

Question 12

Which chemical is used to strengthen lead grids in maintenance-free batteries?

Accepted Answer

A)  Calcium
B)  Copper
C)  Antimony
D)  None of these

Question 13

Deep cycling means ________.

Accepted Answer

A)  The battery is fully discharged and then recharged
B)  The battery is overfilled with acid (H2SO4) 
C)  Overcharging the battery
D)  Overfilling or underfilling the battery with water

Exam 50: Batteries