More people use the oxyfuel cutting torch than any other welding process.
Low carbon steels are difficult to cut.
Goggles or other suitable eye protection must be used for flame cutting.
Oxygen need not be completely mixed with the fuel gas before they leave the tip and create the flame.
Chrome plating causes spatter to stick to the tip, prolonging cleanup.
Materials that are round or covered in rust require less preheat flame.
Acetylene can be used in any tip.
A tiny movement such as a heartbeat can cause a ripple in the cut.
A slight forward torch angle keeps the tip clean for a longer period of time.
A cutting torch should never be used to cut open a sealed container.
The mixing chamber may be located in ______.
the torch body or the tip
a separate location in the weldin shop
the portable mixing machine
the oxygen tube
Which of the following determines the amount of preheat flame required to make a cut?
Arc length, material thickness and cutting tip diameter
Amperage, cutting tip diameter, and type of fuel gas
Material shape, arc length, and amperage
Type of fuel gas, material thickness, shape and surface condition
Acetylene is used in tips having ______ preheat holes.
one to three
one to six
three to five
three to eight
When removing a cutting tip, if the tip is stuck in the torch head, _______.
cut of the tip and discard it
discard the torch head
tap the back of the head with a plastic hammer
tap the side of the tip with a plastic hammer
If the cutting tip seat or the torch head seat is damaged, _____.
it must be discarded
it can be repaired using a plastic hammer
it can be repaired using a rearmer
it can be cut apart and welded back together
If a large cutting tip pops when the acetylene is turned off, ______.
turn the oxygen off first
turn the acetylene back on
it is defective and must be discarded
it must be repaired
When a left-handed welder is making a cut with a hand torch, the torch should be braced _______.
with the left hand
with both hands
with a clamp
with the right hand
The kindling temperature of iron is _______.
600 degrees Fahrenheit
1000 degrees Fahrenheit
1200 degrees Fahrenheit
1600 degrees Fahrenheit
When metal is burned away, ______.
oxygen forms an iron oxide
oxygen forms iron dioxide
the iron turns to cast iron
the iron turns to oxygen
_____ is produced by the metal as it burns.
Carbon
Iron
Heat
Ash
If the cutting stream is too fast, _______.
the cutting stream may gouge the side of the cut
the top edge may be melted or rounded off
the cut may be incomplete
the sides of the kerf may be dished
If the pressure setting is too high, ______.
the cutting stream may gouge the side of the cut.
______ contains little or no unoxidized iron.
Soft slag
Hard slag
Magnesium
Zinc
Most hand torches will not easily cut metal that is more than _____ inches thick.
five to seven
seven to ten
ten to twelve
______ is when metal bends or twists out of shape as a result of being heated during the cutting process.
Hardening
Bending
Dishing
Distortion
