Electrical Systems Basics

Question 1

What is needed for Electricity to flow?

Answer 1

Excess of Electrons on one side, Lack of Electrons on other side & A Conductive Path connecting the 2 sides.

Question 2

How many Electrons move per second in 1 amp?

Answer 2

6.24 Billion

Question 3

What does a Capacitor do?

Answer 3

Stores Electricity

Question 4

What acts as an electronic one-way check valve?

Answer 4

Diode

Question 5

What does a Diode do?

Answer 5

It acts as an electronic one-way check valve

Question 6

What Varies Voltage in a Circuit?

Answer 6

Potentiometer

Question 7

What does a Potentiometer do?

Answer 7

It Varies Voltage in a Circuit

Question 8

What is a solid state material that can act as a Insulator or Conductor ?

Answer 8

Semi-conductor

Question 9

What is the unit of measurement for electrical current flow?

Answer 9

Amp

Question 10

What is the unit of measurement for electrical pressure?

Answer 10

Volt

Question 11

What is the unit of measurement for electrical resistance?

Answer 11

Ohm

Question 12

Define Current Draw

Answer 12

The amount of current required to operate a load.

Question 13

What type of meter is used only in a circuit that has no power?

Answer 13

Ohmmeter

Question 14

What is the name for a circuit where there is a break in the path of electrical flow?

Answer 14

Open Circuit

Question 15

What is the name for a circuit where current goes directly to ground?

Answer 15

Grounded Circuit

Question 16

What is the name for a circuit that has a complete path provided for electrical flow?

Answer 16

Closed Circuit

Question 17

“Voltage drops across each Resistance” is a law for what Circuit?

Answer 17

Series Circuits

Question 18

“Total Resistance is the sum of all Individual Resistances” is a law for what Circuit?

Answer 18

Series Circuits

Question 19

“The sum of each individual Voltage Drop is equal to the source Voltage” is a law for what Circuit?

Answer 19

Series Circuits

Question 20

“Voltage applied to each leg is the same” is a law for what Circuit?

Answer 20

Parallel Circuits

Question 21

“Voltage drop at each branch is the same” is a law for what Circuit?

Answer 21

Parallel Circuits

Question 22

“Resistance Total is less then the Resistance in the lowest branch” is a law for what Circuit?

Answer 22

Parallel Circuits

Question 23

“Current total is all branches combined” is a law for what Circuit?

Answer 23

Parallel Circuits

Question 24

“Current depends in resistance size” is a law for what Circuit?

Answer 24

Parallel Circuits

Question 25

what is 1 ohm into Micro ohms?

Answer 25

0.000,0001µΩ

Question 26

what is 1 ohm into Milli ohms?

Answer 26

0.001mΩ

Question 27

what is 1ohm into Kilo ohms?

Answer 27

1,000KΩ

Question 28

what is 1 ohm into Mega ohms?

Answer 28

1,000,000MΩ

Question 29

Order all unit sizes from smallest to largest

Answer 29

Micro, Milli, Base, Kilo, Mega

Question 30

What Relay pin(s) are connected to power supply?

Answer 30

Pin 30

Question 31

What Relay pin(s) act as a activation switch?

Answer 31

Pin 85 and 86

Question 32

What Relay pin(s) feed the component?

Answer 32

Pin 87

Question 33

When do you measure Resistance?

Answer 33

on a dead circuit (no power)

Question 34

A PNP Transistor is __________ Bias.

Answer 34

Forward

Question 35

A NPN Transistor is __________ Bias.

Answer 35

Reverse

Question 36

How many Volts to open a Transistor?

Answer 36

0.5v to 0.7v

Question 37

What charge is an Anode?

Answer 37

Positive

Question 38

What charge is a Cathode?

Answer 38

Negative

Question 39

What are the Resistance Value on a CAN bus?

Answer 39

80Ω

Question 40

What is the base voltage on a CAN bus?

Answer 40

2.5v

Question 41

What is the range of Voltage on a CAN bus High?

Answer 41

2.5v to 3.5v

Question 42

What is the range of Voltage on a CAN bus low?

Answer 42

1.5v to 2.5v

Question 43

What is the CAN bus high pin on OBDII?

Answer 43

Pin 6

Question 44

What is the CAN bus low pin on OBDII?

Answer 44

Pin 14

Question 45

What is created from Induction?

Answer 45

Electromotive Force (Voltage)

Question 46

what would happen to Current Flow by adding a load in parallel to a parallel circuit?

Answer 46

Increase

Question 47

What is the purpose of a gateway module?

Answer 47

to translate signals

Question 48

What is the magnetic field generated from north and south poles?

Answer 48

Flux Field

Question 50

What is reluctance?

Answer 50

The resistance to a magnetic field

Question 51

why are resistors found in relays?

Answer 51

to eliminate high voltage spikes

Question 52

How does current act in a series circuit?

Answer 52

Stays Constant throughout the entire circuit

Question 53

What is stated in Ohms Law?

Answer 53

Current is directly proportional to Voltage & inversely proportional to resistance

Question 54

What are the 3 parts of a Transistor?

Answer 54

Emitter, Base & Collector

Question 55

What is the High Current side of a Transistor?

Answer 55

Emitter

Question 56

What is the Low Current side of a Transistor?

Answer 56

Collector

Question 57

What does the middle letter define on a Transistor (PNP vs NPN)

Answer 57

Charge required at base (PNP is Negative / NPN is Positive)

Question 58

what does the RMS rating mean for A/C power?

Answer 58

The amount of usable energy

Question 59

What Circuit Protection device is normally found near the battery?

Answer 59

Fusible Link

Question 60

What is a Substance (found in nature) with inherit magnetic properties called?

Answer 60

Magnetite