quiz 3

Question 1

T or F : welding power sources include “Step-Down Transformers”

Answer 1

True

Question 2

T or F : Welding Arc Temperatures exceed 11,000 Degrees F

Answer 2

True

Question 3

T or F : Direct current is the best type of current for stick welding to eliminate arc blow

Answer 3

False

Question 4

T or F : A step-down transformer takes high voltages with low amperages and produces lower voltages with higher amperages

Answer 4

True

Question 5

T or F : Welders with a DC output must have a rectifier

Answer 5

True

Question 6

A welding machine with a 90% duty cycle can be used:

Answer 6

9 out of every 10 mins, 54 out of every 60 mins ect.

Question 7

Welding cables that are too small for the amperage load of the welder will cause:

Answer 7

A higher voltage drop and the cables to heat up

Question 8

The purpose of the ground cable on an electric welding machine is to:

Answer 8

Provide a complete circuit for the welding process

Question 9

Rectifiers are used to:

Answer 9

Allow current to flow in only one direction

Question 10

What does the term SMAW stand for?

Answer 10

Shielded Metal Arc Welding

Question 11

What does DCEP stand for:

Answer 11

Direct current electrode positive

Question 12

What does DCEN stand for:

Answer 12

Direct current electrode negative

Question 13

What does AC stand for:

Answer 13

Alternating Curent

Question 14

Wattage

Answer 14

Measurement of electrical power (V x A)

Question 15

Voltage

Answer 15

Measurement of electrical pressure

Question 16

Amperage

Answer 16

Used for the measurement of electrical flow

Question 17

Duty Cycle

Answer 17

The percentage of time a welding machine can be used continuously

Question 18

Current

Answer 18

The flow of Electrons