Deck 50: Batteries

Question 1

Many GM vehicles use a group 78 size battery.

Answer 1

True

Question 2

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

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

Answer 2

Vibration

Question 3

Deep cycling means ________.

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

Answer 3

The battery is fully discharged and then recharged

Question 4

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

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 5

The largest percentage of automotive battery electrolyte is ________.

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

Question 6

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

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

Question 7

Sponge lead is used for which battery components?

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

Question 8

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

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

Question 9

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

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

Question 10

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?

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

Question 11

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

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

Question 12

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

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

Question 13

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

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