Safety
What must you do before lighting the torch?
Ask the instructor to check off the regulator pressures.
What are the two techniques used for OAW?
Forehand and backhand.
What does using filler rod help with?
Reinforce joints.
What are hoses fabricated from.
What two things must you always wear when using the torch?
Leather gloves and torch goggles.
How far open should acetylene cylinder shut off valves be open?
1/8 to 1/4 turn.
How is the metal fed into the puddle?
It is hand-fed.
What does PSI stand for?
Pounds per Square Inch
What shade must your lens be?
3 to 5 shade lens.
What must you always transport cylinders with?
Caps
Name 2 types of filler rods.
Mild Steel
Stainless Steel
Aluminum
Nickel Alloys
What color are oxygen and acetylene hoses?
Oxygen = Green
Acetylene = Red
What will result in too much smoke inhalation?
Operating the torch in a confined area without proper ventilation.
Oxygen is stored within cylinders of various sizes, what are the pressure ranges of these?
2000-2640 PSI.
If you have a 3/8 metal thickness, what diameter of filler rod would you use?
3/16" or 1/4"
Which way must you always go during OAW?
Always push the bead, never pull.
What is the maximum safe regulator pressure for both acetylene and oxygen.
Acetylene = 5psi
Oxygen = 10 psi
What varies with different torch styles and tip sizes?
Regulator pressure
What is one of the three common OAW filler rods
RG45
RG60
RG65
What must you never use to light the oxygen acetylene flame?
A butane lighter.