Table of Contents
- 1 What are the regulators set on to oxy acetylene cut?
- 2 What is an advantage of having two oxygen regulators on a machine cutting torch?
- 3 Which from the below equipments you will use for an oxyacetylene work with safety?
- 4 What is the advantage of using rose bud tips?
- 5 Do you turn off the oxygen or acetylene first?
- 6 When should you purge your oxygen acetylene torches?
- 7 What gauge pressure should acetylene never be set above?
What are the regulators set on to oxy acetylene cut?
The recommended setting for multi-hole cutting is the oxygen regulator at 40 psig with the acetylene regulator setting at 10 psig.
What is an advantage of having two oxygen regulators on a machine cutting torch?
State the advantage of having two oxygen regulators on a machine-cutting torch. You can fine tune the amount of preheat oxygen and the cutting oxygen that go through. Why are some copper alloy cutting tips chrome plated?
What is the purpose of purging the oxygen and acetylene systems in an oxyacetylene cutting outfit?
When connecting the system, and at least at the start of each shift, hoses and torch must be purged to remove any inflammable gas mixtures. It is essential the oxygen stream does not come into contact with oil which can ignite spontaneously. Purging should also not be carried out in confined spaces.
Which from the below equipments you will use for an oxyacetylene work with safety?
Torch
- torch body (or handle)
- two separate gas tubes (through the handle connected to the hoses)
- separate control valves.
- mixer chamber.
- flame tube.
- welding tip.
What is the advantage of using rose bud tips?
A rosebud is designed to use a lot of oxygen and acetylene gas flow. A cutting torch tip uses a lot of oxygen sometimes but a rosebud needs a lot of both gases flowing to keep it cool and to keep from popping back.
Why is the oxygen turned on while a welder is cleaning a tip?
16. Why is the oxygen valve turned on before starting to clean a cutting tip? To blow out any dirt loosened during the cleaning.
Do you turn off the oxygen or acetylene first?
We recommend closing the oxygen valve first whenever turning off an oxy-fuel torch system especially when Acetylene is fuel.
When should you purge your oxygen acetylene torches?
Purge the hoses before lighting the torch to remove any potentially explosive gas mixtures; Ensure the cutting torch is fitted with spring-loaded non-return valves; Use the correct gas pressures and nozzle size for the job; Maintain the equipment in good condition.
What is different between the oxygen and the acetylene cylinders?
Acetylene is an extremely volatile gas and never used in a pure state. Oxygen is a Class 2.2/5.1 non-flammable, oxidising gas and may cause or intensify a fire, as well as explode if heated.
What gauge pressure should acetylene never be set above?
15 psi
Never use acetylene at pressures above 15 psi. Using acetylene at pressures in excess of 15 psi gauge pressure (or about 30 psi absolute pressure) is a hazardous practice.