Question 1
Question
More people use the oxyfuel cutting torch than any other welding process.
Question 2
Question
Low carbon steels are difficult to cut.
Question 3
Question
Goggles or other suitable eye protection must be used for flame cutting.
Question 4
Question
Oxygen need not be completely mixed with the fuel gas before they leave the tip and create the flame.
Question 5
Question
Chrome plating causes spatter to stick to the tip, prolonging cleanup.
Question 6
Question
Materials that are round or covered in rust require less preheat flame.
Question 7
Question
Acetylene can be used in any tip.
Question 8
Question
A tiny movement such as a heartbeat can cause a ripple in the cut.
Question 9
Question
A slight forward torch angle keeps the tip clean for a longer period of time.
Question 10
Question
A cutting torch should never be used to cut open a sealed container.
Question 11
Question
The mixing chamber may be located in ______.
Answer
-
the torch body or the tip
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a separate location in the weldin shop
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the portable mixing machine
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the oxygen tube
Question 12
Question
Which of the following determines the amount of preheat flame required to make a cut?
Answer
-
Arc length, material thickness and cutting tip diameter
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Amperage, cutting tip diameter, and type of fuel gas
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Material shape, arc length, and amperage
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Type of fuel gas, material thickness, shape and surface condition
Question 13
Question
Acetylene is used in tips having ______ preheat holes.
Answer
-
one to three
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one to six
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three to five
-
three to eight
Question 14
Question
When removing a cutting tip, if the tip is stuck in the torch head, _______.
Answer
-
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
Question 15
Question
If the cutting tip seat or the torch head seat is damaged, _____.
Answer
-
it must be discarded
-
it can be repaired using a plastic hammer
-
it can be repaired using a rearmer
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it can be cut apart and welded back together
Question 16
Question
If a large cutting tip pops when the acetylene is turned off, ______.
Answer
-
turn the oxygen off first
-
turn the acetylene back on
-
it is defective and must be discarded
-
it must be repaired
Question 17
Question
When a left-handed welder is making a cut with a hand torch, the torch should be braced _______.
Answer
-
with the left hand
-
with both hands
-
with a clamp
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with the right hand
Question 18
Question
The kindling temperature of iron is _______.
Answer
-
600 degrees Fahrenheit
-
1000 degrees Fahrenheit
-
1200 degrees Fahrenheit
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1600 degrees Fahrenheit
Question 19
Question
When metal is burned away, ______.
Answer
-
oxygen forms an iron oxide
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oxygen forms iron dioxide
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the iron turns to cast iron
-
the iron turns to oxygen
Question 20
Question
_____ is produced by the metal as it burns.
Question 21
Question
If the cutting stream is too fast, _______.
Answer
-
the cutting stream may gouge the side of the cut
-
the top edge may be melted or rounded off
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the cut may be incomplete
-
the sides of the kerf may be dished
Question 22
Question
If the pressure setting is too high, ______.
Answer
-
the cutting stream may gouge the side of the cut.
-
the top edge may be melted or rounded off
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the cut may be incomplete
-
the sides of the kerf may be dished
Question 23
Question
______ contains little or no unoxidized iron.
Answer
-
Soft slag
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Hard slag
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Magnesium
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Zinc
Question 24
Question
Most hand torches will not easily cut metal that is more than _____ inches thick.
Answer
-
three to five
-
five to seven
-
seven to ten
-
ten to twelve
Question 25
Question
______ is when metal bends or twists out of shape as a result of being heated during the cutting process.
Answer
-
Hardening
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Bending
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Dishing
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Distortion