[Battery Charging Systems]

Question 1

What provides a means of holding the electrolyte, and is used to mount the electrodes?

Answer 1

Container

Question 2

What is the typical charge time for a lead-acid battery?

Answer 2

8-16 hours

Question 3

What senses the alternator’s output and increases or decreases the current to the field as necessary to maintain the proper output voltage?

Answer 3

Voltage regulator

Question 4

What is the specific gravity range for a fully-charged battery?

Answer 4

1.260-1.280

Question 5

How many volts per cell does a fully-charged lead-acid battery have?

Answer 5

2.33 volts per cell

Question 6

What is a machine that converts mechanical energy into electrical energy?

Answer 6

Generator

Question 7

How is the alternator driven?

Answer 7

By a V-belt driven by the crankshaft, with motion provided by the [DIESEL ENGINE]

Question 8

How many diodes are in a full-wave bridge rectifier?

Answer 8

6 (3 positive/3 negative)

Question 9

What is the specific gravity range for a fully-charged battery?

Answer 9

1.260-1.280

Question 10

What is the chemical action that occurs in the cell while the current is flowing that causes hydrogen bubbles to form on the surface of the anode?

Answer 10

Polarization

Question 11

What are the three cylindrical diodes connected in parallel to the positive rectifier diodes called?

Answer 11

Field diode assembly

Question 12

How is the capacity of a battery rated?

Answer 12

Ampere-hours

Question 13

What is the most acceptable manner to clean battery terminals and clamps?

Answer 13

Wire-type cleaner or cutter, or straight-edge cleaner

Question 14

What diode allows current to leave the alternator only?

Answer 14

Isolation diode

Question 15

How many degrees apart are the three conductors (windings) in the armature?

Answer 15

120 degrees

Question 16

What do cells connected in series provide?

Answer 16

Higher voltage

Question 17

What is a cell?

Answer 17

A device that transforms chemical energy into electrical energy

Question 18

What is the conversion of a cell’s chemical energy to a productive electrical energy called?

Answer 18

Electrochemical action

Question 19

What is the solution that reacts with the electrodes, and provides a path for electron flow?

Answer 19

Electrolyte

Question 20

Unless otherwise specified, the specific gravity readings between cells should be no greater than how many points for a fully-charged battery?

Answer 20

25 points (.025)

Question 21

How long should you flush your skin and eyes if electrolyte is spilled or splashed on them?

Answer 21

A minimum of 15 minutes

Question 22

What is the limit beyond which very little useful energy can be obtained from a battery?

Answer 22

Low-voltage limit

Question 23

What is the specific gravity range for a discharged battery?

Answer 23

1.110-1.130

Question 24

What is a device that consumes electrical power?

Answer 24

Load

Question 25

What are the five types of charges that may be given to a storage battery?

Answer 25

* Initial - long, low-rate charge * Normal - routine charge * Equalizing - special, extended normal charge * Floating (Trickle) - keep full charge while idle * Fast - emergency charging

Question 26

What are the positive and negative electrodes?

Answer 26

* Anode - positive | * Cathode - negative

Question 27

What do cells connected in parallel provide?

Answer 27

Higher current capacity

Question 28

What provides a visual and authoritative point of view for battery cleanliness?

Answer 28

Leak test

Question 29

How often should you keep specific gravity in a battery logbook?

Answer 29

Weekly

Question 30

What is the ratio of the weight of the electrolyte to the weight of the same volume of pure water?

Answer 30

Specific gravity

Question 31

What are the conductors by which the current leaves or returns to the electrolyte?

Answer 31

Electrodes

Question 32

What does sulfuric acid turn anodes and cathodes into?

Answer 32

Lead sulfate

Question 33

Unless otherwise specified, the specific gravity readings between cells should be no greater than how many points for a fully-charged battery?

Answer 33

25 points (.025)

Question 34

What is the building block of all batteries?

Answer 34

Cell

Question 35

How long should you flush your skin and eyes if electrolyte is spilled or splashed on them?

Answer 35

A minimum of 15 minutes

Question 36

How can a secondary cell be restored to its original condition?

Answer 36

By forcing an electric current through it in the opposite direction of discharge

Question 37

What is electrolyte a mixture of?

Answer 37

62% water and 38% sulfuric acid

Question 38

What consists of two electrodes placed in a container that holds electrolyte?

Answer 38

Simple cell

Question 39

What is an instrument that measures the amount of active ingredients in the electrolyte of the battery? (measures the specific gravity of the electrolyte)

Answer 39

Hydrometer

Question 40

What is the item that moves a generator coil called?

Answer 40

Prime mover

Question 41

What type of cell is discarded when its chemical energy is exhausted?

Answer 41

Primary cell

Question 42

Where should you always start troubleshooting a battery-powered electrical system?

Answer 42

At the batteries

Question 43

What consists of a number of cells assembled in a common container?

Answer 43

Battery

Question 44

What are anodes and cathodes made up of?

Answer 44

* Lead peroxide - Anodes | * Sponge lead - Cathodes

Question 45

What is a voltage source that uses chemical action to produce a voltage?

Answer 45

Battery

Question 46

What is the main concern for cleaning battery terminals?

Answer 46

To provide a large, clean contact surface area for unimpeded flow of current

Question 47

What are the conductors by which the current leaves or returns to the electrolyte?

Answer 47

Electrodes

Question 48

What type of cell can be recharged?

Answer 48

Secondary cell

Question 49

How many windings are in the alternator?

Answer 49

2

Question 50

What type of alternator do Army vessels use? *there was another question on this test that the answer was also the same as this one (it said something about “what is a term we use to identify the alternator that we use” or something)*

Answer 50

Field

Question 51

What causes gassing?

Answer 51

Charge rate is too high