Welding And Basic Saftey

Question 1

E

70

2

4

Answer 1

Electric Arc

Thousand psi tensile strength

Position

Characteristics of the electrode

Question 2

What are 3 things you must be aware of to run a good bead

Answer 2

Position, speed, distance from metal

Question 3

When electrons go from the electrode to the metal it is electrode negative

Answer 3

Negative

Question 4

Electrodes has a blank coating

Answer 4

Flux

Question 5

Electric arc welding is

Answer 5

Shielded metal arc welding

Question 6

DC flows from

Answer 6

Electrode to ground

Question 7

Extra metal is

Answer 7

Slag

Question 8

List the 3 types of electric arc welders and their current

Answer 8

Transformer AC

Generator DC

Transformer Rectifier AC/DC

Question 9

What is the purpose of flux

Answer 9

It creates a series of chemical reactions that shield the weld

Question 10

Ferrous

Answer 10

Non magnetic

Question 11

List personal gear you need

Answer 11

Head covering, helmet, eye shields, safety glasses, ear protection, breathing equipment, suitable shirt(leather or cotton), gloves, proper pants, safety shoes with steel toe.

Question 12

Voltage

Answer 12

Volt-electrical pressure

Question 13

Amperage

Answer 13

Amps-rate

Question 14

Ohm’s resistance

Answer 14

Creates heat

Question 15

When volts increase amps increase or decrease

Answer 15

Decrease

Question 16

Duty cycle

Answer 16

Number of minutes out of ten that you can weld without stopping

Question 17

What do you say before you weld

Answer 17

Cover

Question 18

Diameters for electrode

Answer 18

3/32 1/8 5/32

Question 19

How many volts does an arc welder need

Answer 19

110-120

Question 20

What creates the heat

Answer 20

An air gap

Question 21

What are two things that the electrode does

Answer 21

Melts into the metal, and shields the weld