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26: Review Questions
Oxyfuel gas cutting is also known as _____ or _____ in the trade.
What color is steel at its ignition temperature? What is its ignition temperature?
Name four fuel gases that may be used in oxyfuel gas cutting.
What is the minimum number of preheat orifices that should line up with the cutting line?
The torch tip is normally held at a _____°–_____° angle from vertical.
When cutting metal under 1/8″ (3.0 mm) thick, the torch should be lowered to _____°–_____° from horizontal.
Explain how and why manual oxyfuel gas cutting is a two-handed operation.
List two devices used to guide a cutting machine along a line or pattern.
True or False?
As the thickness of the metal increases, the cutting tip should be angled further from perpendicular to the surface.
A. True
B. False
Sketch a bell-mouthed kerf.
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