Welding ILMS Flashcards
2 Basic types of burns
Surface or minor. And major burns
Major burns destroy and underlying what?
Fat
What are the most serious arc welding hazards ?
Light rays emitted from the electric arc, and oxyfuel flame
The arc flash is the term commonly used to describe eyes burned by what rays?
Ultra violet rays
Fires can be cause by what?
Torch flame, sparks, slang, and hot metal touching combustible material
What are fumes
Small condensed particles of metal that vaporize during welding and cutting operations
Gasses such as argon, helium, or carbon dioxide aren’t toxic, but inhaling too much will result in what?
Suffocation
Metal fume fever produces flu-like symptoms from inhaling fumes of certain metal ____
Oxides
Acetylene and oxygen or acetylene and air form what?
A highly explosive mixture
What is the most common method of making containers that hold flammable materials safe for welding g or cutting?
Steaming
What does excessive heat in the welding environment cause?
Fainting, heat stress, dehydration and exhaustion
Noise produced by welding may cause what?
Deafness, headaches, rise in blood pressure, accidents. Etc
What can a compressed air system operate between In PSI?
100psi-150psi
Voltages used for manual arc welding are low and don’t cause what?
Electrical shocks
A ground fault circuit interrupter senses what?
Current flow and breaks the circuit in about 1-40 of a second
Safety glasses should have side shields and be what?
Shatter resistant
Welding goggles are worn when oxyfuel welding for what?
To filter out harmful light rays and to prevent slag and sparks from going in your eyes
Best clothing materials are:
Leather, wool, cotton or denim
The three requisites necessary for a fire or a explosion are:
Fuel, heat, oxygen
What’s the maximum safe working pressure of acetylene gas?
15 PSI
The stationary spot welding machine performs what?
The welding cycle automatically
What Uncoated materials are easily spot welded?
Black iron
Welding tips must be what?
Accurately aligned
What is the oldest welding process
The carbon arc welding process
