Chapter 7 Flame Cutting Exam
Questions and Answers 100% Pass
What is the combination welding cutting torch? - ✔✔Its a torch that allows flexibility of
a heating tip welding nozzle welding tip or a cutting head
State one advantage of owning a combination welding cutting torch as opposed to
having a cutting torch - ✔✔The combination torch allows the flexibility the cutting
welding tip or heating tip can be attached quickly to the same torch body
State one advantage of owning a dedicated cutting torch as compared to having a
combination welding cutting torch - ✔✔The dedicated cutting torch are usually longer
and have a larger gas flow.
What is a mixing chamber? Where is it located? - ✔✔A mixing chamber is where two
gases are mixed thouroughly before they leave the tip and create the flame. The mixing
chamber is located in the torch body or the tip.
Define the term equal pressure torch. How does it work? - ✔✔Equal pressure torch uses
a mixing chamber gases must enter the mixing chamber under the same pressure . The
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, mixing chamber is larger than both inlet and gas outlet. This larger causes turbulance in
the gases resulting in gases mixing throughly.
How does an injector type mixing chamber work? - ✔✔The injector allows the oxygen
to draw the fuel gas into the chamber even if the fuel gas pressure is low. The injector
will bypass trough a venturi which creates a low pressure and pulls the fuel gas in and
mixes them throughly
State the advantages of having two regulators on a machine cutting torch -
✔✔Advantage of the second regulator allows the flame to be more accurately adjusted
Why are some copper alloy cutting tips chrome plated? - ✔✔The chrome plate keeps
the splatter from sticking to the tip and prolonging its usefulness
What determines the amount of preheat flame requirements of a torch? - ✔✔The
amount of preheat is determined by the type of fuel gas used. Material, thickness,
shape, and surface condition
What can happen if acetylene is used on a tip designed to be used with propane or
other such gas? - ✔✔When using Acetylene you must use tips designed for acetylene. If
you use tips designed for other gases may overheat causing a backfire or even causing
the tip to explode
Why are some propane and natural gas tips made with a deep, recessed center? -
✔✔The flame burns at such a slow rate it may not stay lit on any other tip
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Questions and Answers 100% Pass
What is the combination welding cutting torch? - ✔✔Its a torch that allows flexibility of
a heating tip welding nozzle welding tip or a cutting head
State one advantage of owning a combination welding cutting torch as opposed to
having a cutting torch - ✔✔The combination torch allows the flexibility the cutting
welding tip or heating tip can be attached quickly to the same torch body
State one advantage of owning a dedicated cutting torch as compared to having a
combination welding cutting torch - ✔✔The dedicated cutting torch are usually longer
and have a larger gas flow.
What is a mixing chamber? Where is it located? - ✔✔A mixing chamber is where two
gases are mixed thouroughly before they leave the tip and create the flame. The mixing
chamber is located in the torch body or the tip.
Define the term equal pressure torch. How does it work? - ✔✔Equal pressure torch uses
a mixing chamber gases must enter the mixing chamber under the same pressure . The
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, mixing chamber is larger than both inlet and gas outlet. This larger causes turbulance in
the gases resulting in gases mixing throughly.
How does an injector type mixing chamber work? - ✔✔The injector allows the oxygen
to draw the fuel gas into the chamber even if the fuel gas pressure is low. The injector
will bypass trough a venturi which creates a low pressure and pulls the fuel gas in and
mixes them throughly
State the advantages of having two regulators on a machine cutting torch -
✔✔Advantage of the second regulator allows the flame to be more accurately adjusted
Why are some copper alloy cutting tips chrome plated? - ✔✔The chrome plate keeps
the splatter from sticking to the tip and prolonging its usefulness
What determines the amount of preheat flame requirements of a torch? - ✔✔The
amount of preheat is determined by the type of fuel gas used. Material, thickness,
shape, and surface condition
What can happen if acetylene is used on a tip designed to be used with propane or
other such gas? - ✔✔When using Acetylene you must use tips designed for acetylene. If
you use tips designed for other gases may overheat causing a backfire or even causing
the tip to explode
Why are some propane and natural gas tips made with a deep, recessed center? -
✔✔The flame burns at such a slow rate it may not stay lit on any other tip
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