stuff from booklet

Question 1

What is most important when welding in a confined space?

Answer 1

Proper Ventilation

Question 2

What is metal fumes fever from?

Answer 2

Zinc

Question 3

Can a dust mask be used?

Answer 3

Nah

Question 4

Is oxygen combustible?

Answer 4

Technically yeah

Question 5

Are you gonna pass this test?

Answer 5

Yes ;)

Question 6

when welding in a confined space, what is most important to have?

Answer 6

proper ventilation

Question 7

what is brass chills and metal fumes fever from?

Answer 7

Zinc

Question 8

Can a dust mask be used for protection from fumes and vapours?

Answer 8

No because the filters are too big and won’t block out the tiny particle fumes.

Question 9

What kind of cylinder uses the process extrusion?

Answer 9

oxygen

Question 10

Is oxygen combustible?

Answer 10

Technically yes.

Question 11

Do oxygen tanks have a safety fuse plug?

Answer 11

No, just acetylene

Question 12

What degree celsius do acetylene cylinder safety fuses melt?

Answer 12

100 degrees.

Question 13

Acetylene gas becomes unstable at what psi?

Answer 13

15 psi is when it starts to get dangerous to work with, and 25 psi is unstable

Question 14

Oxygen and acetylene threads

Answer 14

Oxygen has a right hand thread (righty tighty lefty loosey) and acetylene has left hand threads (opposite). Left hand threads have a notch to indicate what type it is.

Question 15

Temperature of a neutral oxy-acetylene flame is…

Answer 15

5850 degrees F.

Question 16

ratio of oxy-acetylene tanks
ratio for neutral flame

Answer 16

1-1
2.5-1

Question 17

What is the shade of the welding helmet governed by?

Answer 17

The amount of amperage. This and the welders eyes both govern the shade of the helmet.

Question 18

What is the first thing to do when attaching new tanks to regulators is…

Answer 18

Purging for debris?

Question 19

How many types of light are emitted from welding?

Answer 19

three: UV, infrared, and Visible

Question 20

How many volumes of acetylene can be absorbed into one volume of acetone?

Answer 20

25.

Question 21

What kind of cylinder is a bourdon tube located in?

Answer 21

Oxygen

Question 22

How many valves does a cutting torch have?

Answer 22

3

Question 23

How many valves does a welding torch have?

Answer 23

2.

Question 24

What changes AC to DC?

Answer 24

a rectifier

Question 25

Reverse polarity is when the welding electrode is connected to the…

Answer 25

positive pole.

Question 26

Electrode Identification

Answer 26

7018
70-> tensile strength
1-> Welding position
1 = all positions
2=flat and horizontal fillet
3=flat only
4=flat, horizontal, overhead, vertical down.
8-> coating polarity - flux coating

Question 27

7018 settings - stick

Answer 27

125 amps

Question 28

6010 settings - stick

Answer 28

90 amps

Question 29

Short Circuit settings - mig

Answer 29

17v/170w
18v/180w
19v/200w

Question 30

Spray Transfer settings - mig

Answer 30

24.5v/450w

Question 31

Lapp Weld Joint settings - mig

Answer 31

17v/165w

Question 32

Butt Weld Joint settings - mig

Answer 32

16v/155w

Question 33

Fillet Weld Joint settings - mig

Answer 33

18v/240w

Question 34

Oxy-Acetylene settings

Answer 34

Oxygen - 10 psi
Acetylene - 10 psi

Question 35

Can all welding rods be used on alternating current?

Answer 35

No?

Question 36

Welding wire is fed into the gude tubes by…

Answer 36

The Spool

Question 37

What gas is used in GMAW welding

Answer 37

argon & carbon dioxide mixture.

Question 38

DCRP is typically used for…

Answer 38

Both stick and mig welding

Question 39

Gas flow meter/flow gauge is measured in…

Answer 39

C.F.M. - Cubic Feet Per Metre

Question 40

Wire speed is measured in…

Answer 40

inches per minute

Question 41

Is welding MIG in windy situations a problem?

Answer 41

No?