Flaming Hot
A carburizing flame has an excess of what gas?
Fuel or Acetylene
Before any cylinder can be moved, it must have what on it for safety?
Cap
This is the angle between the inner cone and the work surface.
Torch Angle
This happens when the flame recesses back into the torch, signaled by a popping sound and may put out your flame.
Backfire or Flashback
Adding a hook to the end of your filler wire helps to prevent what accident?
Grabbing the HOT end of the rod and preventing a burn
When welding groove plates, this hole is an indicator we need to add filler metal.
Key Hole
How long should we let an Acetylene cylinder stand upright after laying on its side?
Minimum of 48 hours
A burnthrough happens when molten metal reaches its what?
Kindling Point
We must hand tighten our torches because they are made of what soft metal?
Brass
What gas uses left-handed threads for safety?
Acetylene
This oxyfuel gas flame is neither oxidizing nor carburizing.
Neutral Flame
When opening the acetylene cylinder (not the manifold), how much do we turn the valve?
1/4"-1/2" turn
An increase of sparks indicates the metal is about to what?
Burnthrough
This is when we remove the flame to allow the metal to cool.
Flashing
How many nuts are required for the grinder?
2
An Oxidizing flame has an excess of what gas?
Oxygen
This is the number we must NEVER go over when setting our Acetylene pressure.
15psi
Emptying the gas from the lines when we are finished welding is called what?
Purging the Lines
RG-45 is our what?
Filler Metal
This is the shade we must use for oxy welding.
Shade 5
What is used to light the torch?
Striker
The settings for Oxygen and Acetylene are?
5 & 5
A fusion weld made without filler metal is called what?
Autogenous
Our work distance is what?
1/8"
We must check for leaks before we use any gasses, what solution do we use to do this?
Soapy Water Solution