Oxyacetylene Flashcards
What goggles should be worn when using oxyacetylene?
Either a #4 or #5 in a green shade
What should you do if an oxygen cylinder leaks?
Remove it from service, take outside away from sources of ignition, tag it as to the type of fault, and notify the supplier.
What do you do when a cylinder requires filling?
Should marked MT with chalk or soapstone.
What should you do to a cylinder before it is stored or transported?
A removable cap should be installed to protect the valve
The valve on a oxygen cylinder has what kind of thread turn?
Right hand thread
Goggles are worn when using Oxyacetylene equipment to protect the eyes from?
Light, heat, Sparks and slag.
Technician a says it is acceptable to carry a disposable lighter in your pocket when using Oxyacetylene equipment. Technician B says nylon clothing is much better to wear then cotton when using Oxyacetylene equipment which technician is right?
Neither technician
To check for leaks and Oxyacetylene equipment you should use?
Soap and water
Shop ventilation is adequate when cutting which of the following with Oxyacetylene equipment?
A.) galvanized sheet metal
B.) The cadmium coated muffler
C.) A piece of metal joint with lead tin-alloy solder
D.) none of the above
D.) none of the above
If grease is exposed to pure oxygen, the grease can explode: A.) without ignition B.) only if a spark ignited it C.) only if a flame ignited it D.) any of the above
A.) without ignition
When oxygen from a cylinder is being used, the valve should be opened? A.) fully B.) no more than 2 turns C.) no more than 1 turn D.) no more than 1/2 turn
A.) fully
Fusible plug in acetylene cylinders are located: A.) in the top of the cylinder B.) in the bottom of the cylinder C.) both a) and b) D.) neither a) or b)
C.) both a) and b)
Acetylene should be drawn from an acetylene cylinder only when the cylinder is:
A.) located with the words up only pointing up
B.) upright
C.) on its side
D.) upside down
B.) upright
As the cylinder pressure decreases, what does the the outlet pressure from a pressure regulator do?
It remains constant
What colour is the oxygen hose that is used with Oxyacetylene equipment?
Green
What colour is the acetylene hose used with Oxyacetylene?
Red
All fittings used for oxygen used in Oxyacetylene equipment:
A.) are identified with an annular groove
B.) are left hand threaded
C.) both a) and b)
D.) neither a) or b)
D.) neither a) or b)
Flashback arrestors used with Oxyacetylene equipment are installed in?
Both the oxygen line and the acetylene line
What do you do when you are finished using the Oxyacetylene equipment?
The oxygen and acetylene should be shut off at the cylinders, and the regulators should be backed out completely.
What is the most suitable flame to use when heating with Oxyacetylene equipment?
A neutral flame
When do you start cutting an Oxyacetylene torch is:
A.) always held at 90° to the material
B.) inclined more for thin material
C.) inclined more for thick material
D.) held at a 45° angle to start the cut and straight to 90° as the cut progresses
B.) inclined more for thin material
A backfire that occurs when using an Oxyacetylene heating tip might occur because?
Acetylene pressure is too low
What material can be cut easily using an Oxyacetylene torch cutting attachment?
Carbon steel
When using Oxyacetylene equipment for heating, the acetylene regulator is adjusted to?
A.) The pressure used when balancing the torch
B.) The pressure recommended by the manufacturer
C.) 7kPa (1psi) per tip size
D.) 105 kPa (15psi) per tip size
A.) The pressure used when balancing the torch
