2082075
Descripción
Test por Andrew Hewko, actualizado hace más de 1 año
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Creado por Andrew Hewko
hace más de 9 años
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Pregunta 1
Pregunta
More people use the oxyfuel cutting torch than any other welding process.
Respuesta
- True
- False
Pregunta 2
Pregunta
Low carbon steels are difficult to cut.
Respuesta
- True
- False
Pregunta 3
Pregunta
Goggles or other suitable eye protection must be used for flame cutting.
Respuesta
- True
- False
Pregunta 4
Pregunta
Oxygen need not be completely mixed with the fuel gas before they leave the tip and create the flame.
Respuesta
- True
- False
Pregunta 5
Pregunta
Chrome plating causes spatter to stick to the tip, prolonging cleanup.
Respuesta
- True
- False
Pregunta 6
Pregunta
Materials that are round or covered in rust require less preheat flame.
Respuesta
- True
- False
Pregunta 7
Pregunta
Acetylene can be used in any tip.
Respuesta
- True
- False
Pregunta 8
Pregunta
A tiny movement such as a heartbeat can cause a ripple in the cut.
Respuesta
- True
- False
Pregunta 9
Pregunta
A slight forward torch angle keeps the tip clean for a longer period of time.
Respuesta
- True
- False
Pregunta 10
Pregunta
A cutting torch should never be used to cut open a sealed container.
Respuesta
- True
- False
Pregunta 11
Pregunta
The mixing chamber may be located in ______.
Respuesta
-
the torch body or the tip
-
a separate location in the weldin shop
-
the portable mixing machine
-
the oxygen tube
Pregunta 12
Pregunta
Which of the following determines the amount of preheat flame required to make a cut?
Respuesta
-
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
Pregunta 13
Pregunta
Acetylene is used in tips having ______ preheat holes.
Respuesta
-
one to three
-
one to six
-
three to five
-
three to eight
Pregunta 14
Pregunta
When removing a cutting tip, if the tip is stuck in the torch head, _______.
Respuesta
-
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
Pregunta 15
Pregunta
If the cutting tip seat or the torch head seat is damaged, _____.
Respuesta
-
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
Pregunta 16
Pregunta
If a large cutting tip pops when the acetylene is turned off, ______.
Respuesta
-
turn the oxygen off first
-
turn the acetylene back on
-
it is defective and must be discarded
-
it must be repaired
Pregunta 17
Pregunta
When a left-handed welder is making a cut with a hand torch, the torch should be braced _______.
Respuesta
-
with the left hand
-
with both hands
-
with a clamp
-
with the right hand
Pregunta 18
Pregunta
The kindling temperature of iron is _______.
Respuesta
-
600 degrees Fahrenheit
-
1000 degrees Fahrenheit
-
1200 degrees Fahrenheit
-
1600 degrees Fahrenheit
Pregunta 19
Pregunta
When metal is burned away, ______.
Respuesta
-
oxygen forms an iron oxide
-
oxygen forms iron dioxide
-
the iron turns to cast iron
-
the iron turns to oxygen
Pregunta 20
Pregunta
_____ is produced by the metal as it burns.
Respuesta
-
Carbon
-
Iron
-
Heat
-
Ash
Pregunta 21
Pregunta
If the cutting stream is too fast, _______.
Respuesta
-
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
Pregunta 22
Pregunta
If the pressure setting is too high, ______.
Respuesta
-
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
Pregunta 23
Pregunta
______ contains little or no unoxidized iron.
Respuesta
-
Soft slag
-
Hard slag
-
Magnesium
-
Zinc
Pregunta 24
Pregunta
Most hand torches will not easily cut metal that is more than _____ inches thick.
Respuesta
-
three to five
-
five to seven
-
seven to ten
-
ten to twelve
Pregunta 25
Pregunta
______ is when metal bends or twists out of shape as a result of being heated during the cutting process.
Respuesta
-
Hardening
-
Bending
-
Dishing
-
Distortion
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