Oxy-Acetylene Burning Flashcards
True or false: In the event of a leak in the oxy-fuel system you should use Teflon Tape on threads to stop the leak.
False
True or false: oxygen and acetylene hose do not need to be checked for damage if they are brand new.
False
True or false: When attaching brass fittings to oxygen and acetylene bottles, use appropriate wrench and light pressure to snug on the regulator.
True
True or false: Oxygen bottle valve should not be opened all the way when in use.
False
What is the approximate pressure in a fully charged oxygen cylinder?
2200 psi
What shade lens should be used when operating a torch?
5
Should you use pressurized oxygen for dusting clothes, inflating tires, or operating power tools?
No
If an acetylene bottle is laying on its side for 3 hours, how long must it be in the upright position before it is used?
6 hours
How much should you open the valve of an acetylene bottle?
1/2 to 3/4 turn
What must you do to the steel before cutting with the oxygen?
Preheat the steel
What is the proper coupling distance between your torch tip and the work piece?
1/8 to 3/16”
What safety device should always be near when operating a torch?
Fire extinguisher
What type of burning system does our school use?
Manifold system
What color is the acetylene hose?
Red
What do you call the molten steel that drops from the underside of the plate when burning?
Dross
What is the ratio of oxygen and acetylene pressures used at the school?
4:1 oxygen to acetylene
When shutting off the neutral flame, which line should be shut off first?
Acetylene (the fuel)
What’s the max PSI an acetylene regulator should be used at?
15 PSI
The outside orifices on a torch are for _________ and the inside orifice is for _____.
preheat, cutting
A v-notch on the line indicates a ___________ thread.
left-hand
Using the diagram of an oxy-acetylene torch system, identify “A”
working pressure line
Using the diagram of an oxy-acetylene torch system, identify “B”
tank pressure gauge
Using the diagram of an oxy-acetylene torch system, identify “C”
adjuster screw
Using the diagram of an oxy-acetylene torch system, identify “D”
flashback arrester
