Acetylene
Acetylene is unstable above what pressure?
15PSI
True or false? Pressure in a cylinder will change with change of temperature.
True
Before lighting the torch, you should first do this to the work area.
clear away flammable materials?
This should always be checked before lighting the torch to prevent gas leaks.
hoses and connections
What Color hoses are used for Oxygen?
True or false? Acetylene cylinders should always be kept in the upright positions.
True
High pressure cylinders should be opened slowly to prevent
Damage to regulators
After opening the cylinder valves, this must be adjusted before lighting the torch.
What is regulator pressure?
At what pressure does an acetylene working pressure gauge have a red warning mark?
15 PSI
After lighting, you slowly add this gas to create a neutral flame.
What is oxygen?
How far should an acetone valve be opened?
None, Acetone is what the acetylene is stabalized with.
Oxygen cylinder values have what type of construction?
Two piece
True or false? Having a dirty cutting tip will not affect cut quality.
False
You should never use oil or grease on this part of the oxygen system
What are oxygen regulators/fittings
During shutdown, this cylinder valve should be closed first.
acetylene/fuel gas valve
What is the name of the safety valve on an acetylene cylinder?
Fuseable plug
How much should you open the Oxygen valuve?
Before starting a cut, the torch tip should be this distance from the metal.
slightly above/about 1/8 inch from the metal
Before leaving the work area, you should always do this to prevent fires.
Check for Hot metal
This part of the torch mixes oxygen and fuel gas together.
The torch handle/mixing chamber
What is the liquid that stabilizes this gas?
Acetone
What is the safety device on an oxygen cylinder?
Rupture disk
This should be loosened after purging the system to protect the gauges.
What is the regulator adjusting screw?
You do not want to draw acetone into the system because: Three answers for 500
It can damage the regulators
It will contaminate the flame
It can damage the hoses
This flame has equal oxygen and fuel gas and is most commonly used.
What is a neutral flame?