EG2 Ch.1

Question 1

What is the first requirement for an electrical circuit?

Answer 1

A source of electrical pressure

Question 2

What is the second requirement for an electrical circuit?

Answer 2

A conductor

Question 3

Why are conductors necessary?

Answer 3

They transmit energy to the point where it will be used.

Question 4

What condition must be present, in regards to conductors, for current to flow?

Answer 4

A complete path

Question 5

A circuit with a complete path for power is known as what?

Answer 5

open circuit

Question 6

What is the third and final requirement for an electrical circuit?

Answer 6

A load

Question 7

What is a load?

Answer 7

A device that uses the electrical energy from the source

Question 8

What do you call a circuit with no load or bypassed load?

Answer 8

short circuit

Question 9

What is a characteristic of a short circuit?

Answer 9

low resistance

Question 10

With little to no resistance, what happens to the amperage?

Answer 10

amps go up

Question 11

When amps go up too much what happens to the conductor?

Answer 11

it melts

Question 12

What are the two basic circuit types?

Answer 12

series and parallel

Question 13

Which circuit type has only one path for current to flow?

Answer 13

series

Question 14

What can you tell me about the current in a series circuit?

Answer 14

It is the same at any point in the circuit

Question 15

Which circuit type has many paths for current to flow?

Answer 15

Parallel

Question 16

Are power lines series or parallel circuits?

Answer 16

They are a combination of both

Question 17

What can be said about anything connected directly between two points?

Answer 17

it is in series

Question 18

Anything connected in series will have current flow through it unless what?

Answer 18

the resistance is high enough to prevent flow

Question 19

What is one thing lineworkers should never do?

Answer 19

place themselves in series between two points of different potential

Question 20

If viewed individually what type of circuit is line equipment?

Answer 20

Series

Question 21

What happens to the current flow down line from a device?

Answer 21

current flow increases

Question 22

In a series circuit, what is needed to operate properly?

Answer 22

a certain amount of current and voltage high enough to maintain proper current flow

Question 23

What is voltage drop?

Answer 23

The amount of voltage needed to push a given current through a given amount of resistance

Question 24

In a series circuit what happens to the voltage as it passes through each point of resistance?

Answer 24

the voltage drops

Question 25

After current flows through the last load connected to in a series circuit, how much voltage is left?

Answer 25

none

Question 26

How is the power delivery system a parallel circuit?

Answer 26

Lines branch out from substations and main line

Question 27

How is the power delivery system a series circuit?

Answer 27

The equipment inline with the lines

Question 28

T or F: The power delivery system is made of only one big parallel circuit.

Answer 28

False

Question 29

At what point does the power delivery system branch off?

Answer 29

Where the voltage changes

Question 30

Electrical values seen by the source, in a parallel circuit, are dependent on what?

Answer 30

By individual loads on the circuit

Question 31

When the load increases on the line in a parallel circuit, what happens to the current and the source?

Answer 31

Current increases flow and the source provides more power

Question 32

What is the source for a residence?

Answer 32

the meter

Question 33

How much voltage is supplied to each device on a parallel circuit?

Answer 33

Each device is supplied the same amount of voltage as the source