Welding Test

Front 1

Difference between brazing and braze welding

Back 1

Both melting points must be above 425 c but brazing is when the filler metal is drawn into the joint using capillary attraction, but braze welding the filler metal fuses the top plate and bottom plate together with out filling the gap

Front 2

What is a flash back

Back 2

When the flame moves beyond the the mixing chamber or torch

Front 3

Whatbis used to prevent flashbacks

Back 3

Flashback arresters

Front 4

What psi should the fuel be at for oxy cutting

Back 4

For acetylene 4-5 for chemtane 5-6

Front 5

What psi should the oxygen be at for oxy cutting

Back 5

35-40 psi

Front 6

What color are oxygen and fuel hoses

Back 6

Red (left hand thread) for fuel. And green(right hand thread) for oxygen

Front 7

What is( direct current electrode positive) aka DCEP

Back 7

When the + lead is is connected to the electrode and the - is connected to the workpiece

Front 8

What is (direct current electrode negative) aka DCEN

Back 8

When the + lead is connected to the work peice and the - lead is connected to the electrode

Front 9

What are two methods of starting an arc on stick welding

Back 9

Tap start or a scratch start

Front 10

What is the usual distance for a tie in

Back 10

1/4 inch usual

Front 11

Proper striker work angle to start arc

Back 11

90 degrees

Front 12

Travel angle with striker

Back 12

20-30 degrees in the direction of travel

Front 13

Distance off the plate controls what and what is the proper distance to keep it

Back 13

Controls the arc gap, and proper distance off the plate is the thickness of the rod your using.

Front 14

What effects the penetration of the metal

Back 14

The travel angle

Front 15

What would the E stand for in E 6010 rod

Back 15

Electrode

Front 16

What does the 60 stand for in E 6010 rod

Back 16

Strength in psi

Front 17

What does the 1 stand for in E 6010 rod

Back 17

Position

Front 18

What does the last 0 stand for in E 6010 rod

Back 18

Type of coating and current

Front 19

What is position 1

Back 19

Flat, horizontal, vertical, and overhead

Front 20

What is position 2

Back 20

Flat and horizontal only

Front 21

What is position 3

Back 21

Flat, horizontal, verticlal down, and overhead

Front 22

What is the arc forcen

Back 22

This prevents the electrode from sticking during welding

Front 23

What is 80 % of welding problems

Back 23

Bad ground connection

Front 24

Two main factors that control wire feed welding

Back 24

The wire feed speed. And the voltage

Front 25

What is slag

Back 25

The coating that forms on the top of an arc weld

Front 26

How do you get rid of slag

Back 26

Chipping hammer and wire brush

Front 27

Two types of gauges on oxygen and fuel tanks

Back 27

Tank pressure and working pressure

Front 28

Safety features on oxygen tanks

Back 28

Flashback arresters, and bursting disks

Front 29

Safety features in fuel tanks

Back 29

Flashback arrestors, and fusible plugs

Front 30

What is the proper order to turn on a oxy welder or cutting torch

Back 30

Fuel on first, fuel off first

Front 31

Direction of travel with a cutting torch

Back 31

Push the torch never drag

Front 32

2 main types of welds

Back 32

Fillet weld , and a Grove weld

Front 33

4 types of joints

Back 33

Butt joint, outside corner, lap joint, T joint