Electricity

Question 1

Answer 1

Inductance (without physical contact)

Question 2

Answer 2

Duty cycle

Question 3

DCEP( electrode POSTIVE)

Answer 3

Reverse polarity

Question 4

Measures strength of current

Answer 4

Amperage

Question 5

Electrical path

Answer 5

Conductor

Question 6

Stop current flowing through itself

Answer 6

Insulator

Question 7

Voltage output during welding

Answer 7

Arc voltage

Question 8

Device in welding machine certain number of turns of wire

Answer 8

Coil

Question 9

Device changes AC to DC

Answer 9

Rectifier

Question 10

Electrode negative DCEN

Answer 10

Straight polarity

Question 11

Current flows One Direction only positive or negative value

Answer 11

DC direct current

Question 12

Create electricity

Answer 12

Generator

Question 13

” Graphical illustration”

Answer 13

Volt-amp curve

Question 14

No current machine is turned on

Answer 14

Open circuit voltage

Question 15

Speed at which AC changes Direction

Answer 15

Frequency

Question 16

Electrical conductor that Opposes the flow of current

Answer 16

Resistance

Question 17

Answer 17

Arc

Question 18

Transform AC to DC

Answer 18

Transformer rectifier

Question 19

Answer 19

Electrical current is generated

Question 20

Converts high voltage, low amperage. to low voltage, High amperage use of primary and secondary coil

Answer 20

AC Transformer

Question 21

Changing DC to high frequency AC

Answer 21

Inverter

Question 22

Secondary winding on Transformer

Answer 22

To step down the amperage

Question 23

Advantage of AC Transformer freedom from..

Answer 23

Arc blow

Question 24

Purpose of silicone -controlled rectifier

Answer 24

To change AC to DC

Question 25

How to change polarity on AC alternator welding machine

Answer 25

Trick question : An AC alternator has no fixed polarity

Question 26

Advantage of all Transformer welding machines

Answer 26

Maintenance costs are lower

Question 27

Rectify incoming AC to DC then transistors create a higher frequency AC. Higher frequency AC is then rectified to extremely smooth DC

Answer 27

Inverters.

Question 28

Answer 28

Inverter technology

Question 29

Advantage of inverter welding machines

Answer 29

Small and lightweight

Question 30

Disadvantage of inverter welding machines

Answer 30

Higher initial cost than Transformer or rectifiers