Batteries

Question 1

Non-Rechargeable are?

Answer 1

Dry cells and lithium

Question 2

Electrolyte of a good battery is?

Answer 2

1.22

Question 3

Rechargeable batteries are?

Answer 3

Lead acid, alkaline, nickel cadmium, and zinc

Question 4

When you get acid on your skin you should?

Answer 4

Wash the affected area for 15 minutes with fresh water. In desperate measures where you have no fresh water, salt water may be used as a last resort.

Question 5

What is the optimal temperature for taking a specific gravity reading of batteries?

Answer 5

80 degrees F

Question 6

What are the 5 rates for charging a battery?

Answer 6

Initial
Float
Normal
Fast (Emergency)
Equalizing

Question 7

While charging a battery you must never let the temperature of any cell to rise above _____°F? This is also the max temperature of electrolyte.

Answer 7

125°

Question 8

What gas is formed when saltwater and lead acid are mixed?

Answer 8

Hydrogen Chloride

Question 9

To correct battery electrolyte to 80 degrees you must?

Answer 9

Use a hydrometer and add .001 for each 3 degrees above 80° and subtract .001 for each 3 degrees.

Question 10

Floating ball charge of a lead acid battery what are the % of the following colors?

Red, White, Green?
Red, White?
Red alone?

Answer 10

90%
50%
10%

Question 11

With a specific gravity of 1.220 (good electrolyte) each cell should read ____ volts?

Answer 11

2.15 volts

Question 12

What are the 6 types of batteries used in the coast guard?

Answer 12

Secondary batteries are rechargeable

1. Lead Acid
2. Alkaline
3. Nickel cadmium
4. Zinc

Primary batteries are non-rechargeable

1. Dry Cell
2. Lithium cell

Question 13

The function of a battery charging system is to do what?

Answer 13

Replace the electrical energy that the storage batteries has consumed during its use

Question 14

Extended normal charge given at the finishing rate to ensure that all the sulfate is driven from the plates and that the cells are restored to a maximum specific gravity is known as ________ charge?

Answer 14

Equalizing charge

Question 15

What circuit of a battery charger senses the state of charge in a battery?

Answer 15

Saturable reactor sensing

Question 16

What component in a battery charger converts AC to DC?

Answer 16

Rectifier

Question 17

If electrolyte comes in contact with your eyes, flush the eyes with fresh water for a minimum of _____ minutes?

Answer 17

15

Question 18

A cell is a device that transforms _____ energy into electrical energy?

Answer 18

Chemical

Question 19

Before taking hydrometer readings on a battery that has been on charge, secure the battery charger and wait _____ minutes?

Answer 19

10

Question 20

Why should you never run an alternator as an open circuit?

Answer 20

A ruinously high voltage will build up

Question 21

If a dry cell battery if properly stowed, how long will it last?

Answer 21

2 years

Question 22

What do you clean battery lugs with?

Answer 22

Sodium bicarbonate or ammonia

Question 23

Electrolyte levels should be _____ of an inch above the separator plates?

Answer 23

3/8”

Question 24

How do you properly mix electrolyte?

Answer 24

Always pour ACID into WATER!!!!

Question 25

An equalizing charge on a battery is continued for 4 hours or until what?

Answer 25

The specific gravity of all the cells shows no change You check the gravity every 30 minutes

Question 26

Battery condition caused by high rate charging?

Answer 26

Excessive gassing