Electrical Intro. 10/23

Question 1

How many overloads for a 3 phase motor

Answer 1

3

Question 2

Start stop is what type of switch?

Answer 2

Momentary

Question 3

What are used to tell you if a motor is running?

Answer 3

Indicating lights

Question 4

NEMA stands for?

Answer 4

National Electrical manufacturers association

Question 5

What 4 different components up an electrical circuit?

Answer 5

Wiring
source voltage
switches
loads

Question 6

A float switch is installed in what position?

Answer 6

Normally open

Question 7

What part of a DC motor is meant to wear out?

Answer 7

Brushes

Question 8

High voltage side of a transformer is known as?

Answer 8

Primary

Question 9

What holds the starter circuit closed when the momentary start button is released?

Answer 9

Seal in tips

Question 10

What voltage is supplied to a control transformer?

Answer 10

480VAC

Question 11

What can be used as a temporary solution to fix a wiring issue?

Answer 11

Jumper wire.

Question 12

Size of a starter is based on what?

Answer 12

Motor HP

Question 13

4 types of motors

Answer 13

Single phase
single phase capacitor start
3 phase
DC

Question 14

Symbol for fuse

Answer 14

Question 15

To change the rotation of a DC motor you swap the?

Answer 15

Polarity (A-1,A-2)

Question 16

What needs to be installed in the motor circuit to enable auto or jog?

Answer 16

Selector switch

Question 17

What type of motor needs a boost to get rolling?

Answer 17

Single phase capacitor motor

Question 18

IEC

Answer 18

International electro-technical commission?

Question 19

Voltage has to be supplied to what component to close the main movable tips to supply power to the motor?

Answer 19

Coil

Question 20

Stop button is normally?

Answer 20

Closed

Question 21

Start button is normally

Answer 21

Open

Question 22

Draw a Y configuration drawing

Answer 22

Question 23

The initial surge of power going into a motor until it gets up to speed

Answer 23

In rush

Question 24

Normally closed tips

Answer 24

Question 25

Normally open tips

Answer 25

Question 26

Capacitor is discharged how?

Answer 26

Being shorted

Question 27

Central location that distributes power throughout your home?

Answer 27

Load center

Question 28

What is used to protect a control transformer

Answer 28

Control fuse

Question 29

The low voltage side of the transformer

Answer 29

Secondary

Question 30

What is used to make the motor run?

Answer 30

Motor starter

Question 31

X2 is always what on a control transformer?

Answer 31

Neutral

Question 32

FLA stands for?

Answer 32

Full load amps

Question 33

An e-stop is what type of button?

Answer 33

Maintained

Question 34

Megger should read what from phase to ground and a new motor?

Answer 34

550 MegaOhms

Question 35

What can be mounted in any type of box for easy connections?

Answer 35

Terminal strip

Question 36

Phase to phase on a good motor should be read?

Answer 36

0.0 ohms

Question 37

On a regular meter you should read what from phase to ground?

Answer 37

O/L