3.5

Question 1

Characteristics of lead acid electrolysis

Answer 1

+ lead peroxide
- lead
Sulphuric acid and water = electrolyte
30% 70%

Question 2

Nickel cadmium electrolysis

Answer 2

+ nickel oxyhydroxide
- metal cadmium
Potassium hydroxide = electrolyte

Question 3

Total voltage and discharge for lead acid battery

Answer 3

2 V

1.83 V discharge

Question 4

Voltage and discharge for a nickel cadmium battery

Answer 4

1.2 V

1 V

Question 5

Factors of mercury oxide coil cell

Answer 5

Negative pole - compressed zinc powder
Positive pole- mercury oxide

Electrolyte - lime potash

Question 6

Voltage for a mercury oxide coin cell

Answer 6

1.35 V

Question 7

Characteristic of a mercury oxide coin cell

Answer 7

Constant internal resistant

Question 8

Silver oxide coin cells

Answer 8

Silver oxide , lime potash and zinc

Question 9

Voltage for lithium coin cells

Answer 9

3.5V

Question 10

What are primary cells

Answer 10

Batteries that immediately supply a voltage and are non reversible. Can not be recharged

Question 11

An example of a primary cell

Answer 11

Zinc carbon battery

Question 12

What is a secondary cell

Answer 12

A rechargeable battery that is used for aircraft

Question 13

What are thermocouples

Answer 13

Similar metals welded together to measure temperatures above 0K
They measure the exhaust gas temperature in engines

Question 14

Factors of a parallel circuit

Answer 14

Like terminals
Current - Split
Voltage - Constant
Resistance - R= 1/Rt

Question 15

Factors of a series circuit

Answer 15

Unlike terminals
Current: constant
Voltage: Sum
Resistance: Sum

Question 16

What is single phase voltage

Answer 16

115 V

Question 17

What is the voltage for phase to phase

Answer 17

200V

Question 18

What is the degrees for separation of coils

Answer 18

120 degrees

Question 19

What is the ambient temp for a wire

Answer 19

25

Question 20

Max temp for a wire

Answer 20

60

Question 21

What temperature do thermocouples operate

Answer 21

-200 - 2,300

Question 22

What is RMS for Ac

Answer 22

0.707

Question 23

What is the amplitude

Answer 23

0 to the peak

Question 24

What is the symbol for current

Answer 24

I

Question 25

Symbol for charge

Answer 25

Q

Question 26

Symbol for resistance

Answer 26

R

Question 27

Symbol for temp

Answer 27

T

Question 28

Symbol for current density

Answer 28

J

Question 29

Symbol for conductance

Answer 29

G

Question 30

What does Vpk mean

Answer 30

Voltage peak

Question 31

What does Vpk-pk mean

Answer 31

Peak to peak

Question 32

What are the characteristic for AC

Answer 32

``` Average is 0 Velocity changed over time Polaris changes Sine curve Repeats ```

Question 33

Why do we use a multi phase generator

Answer 33

We can get two different voltages

Question 34

What are the advantages and disadvantages of a nickel cadmium battery

Answer 34

Power to weight ratio. Larger capacity Dis Costly Larger