electricity

Question 1

What is duty cycle?

Answer 1

The percentage of a 10-minute period a welder can operate at rated output before cooling

Question 2

What is a generator?

Answer 2

A machine that produces electricity for welding

Question 3

What does arc voltage control?

Answer 3

The width and fluidity of the weld bead

Question 4

What is resistance?

Answer 4

Opposition to current flow that converts electrical energy to heat

Question 5

What is EMF (electromotive force)?

Answer 5

Electrical pressure that pushes current through a conductor

Question 6

What is a conductor?

Answer 6

A material that allows electricity to flow

Question 7

What is an atom?

Answer 7

The smallest unit of an element

Question 8

What is a line transformer?

Answer 8

Device that changes voltage from power lines for welding use

Question 9

What direction do electrons flow?

Answer 9

From negative to positive

Question 10

What is an AC-DC transformer rectifier?

Answer 10

An AC transformer with diodes that convert AC to DC

Question 11

What does a transformer do?

Answer 11

Converts input voltage to the required welding voltage

Question 12

What is a commutator?

Answer 12

The split ring in a DC generator that rectifies current

Question 13

What is voltage?

Answer 13

Electrical pressure that causes current to flow

Question 14

What are advantages of AC alternators?

Answer 14

Lightweight, simple design, and no arc blow

Question 15

What is an inverter?

Answer 15

Converts DC input to AC output electronically

Question 16

What is a buzz box?

Answer 16

A basic AC transformer welder known for its humming noise

Question 17

What is the advantage of inverters?

Answer 17

High efficiency, compact size, excellent current control

Question 18

What is the advantage of DC welders?

Answer 18

Smooth, stable arcs, and compatibility with more electrodes