Cutting and welding Exam Questions and
Answers 100% Pass
First-degree burns have occurred when the surface of the skin is - ✔✔Reddish in color
tender and painful
Welding lenses are numbered according to - ✔✔Darkness
For eye safety the lens shade recommendation for an electric arc with amperage of 250
to 500 - ✔✔14
A primary current over______ is considered harmful - ✔✔6ma
Exposures to fumes could cause metal fume fever what are some symptoms for this
fever - ✔✔Allergy and flu like symptoms
Which of the following metals can be cut with the Oxy-fuel torch - ✔✔Carbon steel
If a cylinder of acetylene gas is found laying down how long must it remain vertical
before it can be safely used - ✔✔4hours
What is the approximate cylinder pressure on an oxygen cylinder - ✔✔2,200 psi
What type of thread and color is oxygen associated with - ✔✔Right hand thread-Green
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,Which of the following is an advantage for using acetylene as a fuel gas - ✔✔It has the
highest neutral temperature
To what temperature must the steel be raised in order to properly cut it - ✔✔The metals
kindling temperature
How dose a coating such as paint on the surface effect cutting with a torch - ✔✔The
paint should be removed to avoid residue clogging the tip
Acetylene is dissolved into which substance - ✔✔Acetone
There are two colors of oxy-fuel hose what color is the acetylene hose - ✔✔Red
How are acetylene cylinders constructed - ✔✔Welded steel cylinders
What type of fitting dose an acetylene regulator have - ✔✔Left hand
What is the purpose of a check valve - ✔✔To stop reverse flow of the gas
Which type of hose is used alternate fuel gas - ✔✔"T" grade
On a manufacturers tip and gas pressure chart what dose the 000 stand for - ✔✔The
diameter(drill size)of the cutting tip orifice
What is the relationship between tip size and metal thickness - ✔✔Thicker metal
requires larger tip orifice
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, How dose tip size effect gas pressure - ✔✔The larger orifice requires higher gas
pressure
Which of the following can cause flashback - ✔✔Dirty welding/cutting tip
How dose the tip connect to the torch - ✔✔With a right hand tread tip nut
Before installing tips in the torch head what part of the tip should be inspected - ✔✔O-
ring and seating surfaces
Which of the following charts/graphs are used to properly set gas pressure - ✔✔Tip
charts
The OAF process uses oxygen and what other type is gas - ✔✔Fuel gas
At what pressure dose acetylene gas become unstable - ✔✔15 psi
Which type of hose is used for acetylene fuel gases - ✔✔RM grade
How much should the acetylene valve be opened - ✔✔Opened 1/2 turn
There are two types of cutting torches.One is equal pressure torch. What is the other -
✔✔Injector
When setting up the oxy-fuel equipment the green hose attaches to what - ✔✔Oxygen
regulator fitting
An oxygen regulator can be used with which cylinder - ✔✔Oxygen
100% Pass Guarantee Sophia Bennett, All Rights Reserved © 2025 3
Answers 100% Pass
First-degree burns have occurred when the surface of the skin is - ✔✔Reddish in color
tender and painful
Welding lenses are numbered according to - ✔✔Darkness
For eye safety the lens shade recommendation for an electric arc with amperage of 250
to 500 - ✔✔14
A primary current over______ is considered harmful - ✔✔6ma
Exposures to fumes could cause metal fume fever what are some symptoms for this
fever - ✔✔Allergy and flu like symptoms
Which of the following metals can be cut with the Oxy-fuel torch - ✔✔Carbon steel
If a cylinder of acetylene gas is found laying down how long must it remain vertical
before it can be safely used - ✔✔4hours
What is the approximate cylinder pressure on an oxygen cylinder - ✔✔2,200 psi
What type of thread and color is oxygen associated with - ✔✔Right hand thread-Green
100% Pass Guarantee Sophia Bennett, All Rights Reserved © 2025 1
,Which of the following is an advantage for using acetylene as a fuel gas - ✔✔It has the
highest neutral temperature
To what temperature must the steel be raised in order to properly cut it - ✔✔The metals
kindling temperature
How dose a coating such as paint on the surface effect cutting with a torch - ✔✔The
paint should be removed to avoid residue clogging the tip
Acetylene is dissolved into which substance - ✔✔Acetone
There are two colors of oxy-fuel hose what color is the acetylene hose - ✔✔Red
How are acetylene cylinders constructed - ✔✔Welded steel cylinders
What type of fitting dose an acetylene regulator have - ✔✔Left hand
What is the purpose of a check valve - ✔✔To stop reverse flow of the gas
Which type of hose is used alternate fuel gas - ✔✔"T" grade
On a manufacturers tip and gas pressure chart what dose the 000 stand for - ✔✔The
diameter(drill size)of the cutting tip orifice
What is the relationship between tip size and metal thickness - ✔✔Thicker metal
requires larger tip orifice
100% Pass Guarantee Sophia Bennett, All Rights Reserved © 2025 2
, How dose tip size effect gas pressure - ✔✔The larger orifice requires higher gas
pressure
Which of the following can cause flashback - ✔✔Dirty welding/cutting tip
How dose the tip connect to the torch - ✔✔With a right hand tread tip nut
Before installing tips in the torch head what part of the tip should be inspected - ✔✔O-
ring and seating surfaces
Which of the following charts/graphs are used to properly set gas pressure - ✔✔Tip
charts
The OAF process uses oxygen and what other type is gas - ✔✔Fuel gas
At what pressure dose acetylene gas become unstable - ✔✔15 psi
Which type of hose is used for acetylene fuel gases - ✔✔RM grade
How much should the acetylene valve be opened - ✔✔Opened 1/2 turn
There are two types of cutting torches.One is equal pressure torch. What is the other -
✔✔Injector
When setting up the oxy-fuel equipment the green hose attaches to what - ✔✔Oxygen
regulator fitting
An oxygen regulator can be used with which cylinder - ✔✔Oxygen
100% Pass Guarantee Sophia Bennett, All Rights Reserved © 2025 3
