Welding Oxyfuel Cutting Torch WRITTEN TEST REVIEW UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

Welding Oxyfuel Cutting Torch WRITTEN TEST REVIEW UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS

What do regulators do (what do they tell)? Indicate tank pressure and work pressure.


what color is the oxygen hose? Green (high pressure hose)


What color is the fuel gas hose? Red (low pressure hose)


What kind of flame do you get when there is more fuel Carbonizing flame
than oxygen and 3 distinct parts of the flame are
present?


What kind of flame do you get when 2 separate parts of Neutral flame
the flame are present? The inner flame is brought as
bright blue with rounded cones.


What kind of flame do you get when 2 distinct parts of Oxidizing flame
the flame are similar to that of the neutral flame, but the
inner flame is pointed and makes a hissing noise?


When does reverse flow occur? When a gas goes into the other gas side of torch or vise versa.


What causes reverse flow to occur? Blockage in the tip or the torch, and low or no pressure in 1 of the tanks.


When does flash back occur? When a flame continues to burn back into the torch, mixing chamber, torch valves,
hoses, and possible into the regulators.


When does back fire occur? When the return of a flame goes back into the torch creating a small explosions
and popping noises.