The maximum safe working pressure for acetylene is what?
15 p.s.i
One should never enter a welding shop without wearing what?
Safety glasses
Normal pant and shirt material worn around welding should be of what material?
Cotton
What is the tool used to remove slag, clean metal in preparation for welding or clean beads after welding?
Wire brush
What type of threads are fuel gas fittings equipped with?
Left-hand threaded
What color are fuel gas hoses usually colored?
Red
A burn to the eye caused by exposure to ultraviolet light from the welding arc is called what?
Flash burn
What is the major function of the coating on an arc welding electrode?
Removes oxides and impurities, protects weld, acts as shielding gas
What has a strong jaw, used to hold metal or wire while working that is attached to a bench or table?
Bench vise
What is the device used to control the pressure on an oxy-fuel cutting torch set called?
Regulators
What is the only acceptable method for lighting oxy-fuel torches?
Striker
When using a fire extinguisher to extinguish a fire, what part of the fire should it be aimed at?
Base
What is the first bead made when welding two pieces of metal together called?
Root pass
What creates visible marks that are heat-resistant but can be wiped off?
Soapstone
What should one never use on gas cylinders, regulators, connections and hoses?
Oil or lubricant
Which oxy acetylene flame has an excess of fuel?
Carburizing
When not in use, an electrode holder GTAW torch or MIG gun should not be placed in contact with what?
Grounded metal surface
The tensile strength of an E-7018 electrode is ________ pounds psi
70,000
What is the clamp attached by a cable to the arc welder that completes the electrical current called?
Ground clamp
What tool is designed to contain a flashback, and prevent it from penetrating into "upstream equipment" (e.g hoses, regulators and gas cylinders).
Flashback arrestor
What is the term for the width of the cut produced by any cutting process?
Kerf
What are the initials of the federal organization created to insure safe and sanitary working conditions for employees?
OSHA
What is the term for the groove melted into the base metal next to the weld toe or weld root and has not been filled in
Undercut
What tool is adjustable with a center bolt at the base of the handle, locks around objects, and has a release lever?
Locking pliers or vise grips
What is the pressure in a full oxygen tank?
Around 2,000 psi