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welding 101

intro to welding

QuestionAnswer
Base metal is the object to be welded? True
Two types of oxy acetylene are injection and medium pressure? True
Should you use a match to light a torch? False
You should use a 45* work angle on flat welds? True
Filler metals should be close to the same propertys as the base metal? True
you should use semi-circles? True
When welding Aluminum you should use a smaller tip? False
Oxy is mainly used on heavy steel False
Constant current is used on stick? True
DC only flows in one direction True
DCEN more heat to the electrode? False
Reveres is renamed DCEN? False
Fill-Fast can only be used in the flat position True
6010 is fast freeze? True
When selecting electrodes you need to think about a lot of things? True
Soap stone is used for marking welds? True
Tapping is the easiest to learn False
Too high of a current causes over lapping? False
A crater forms when the arc touches the base metal True
A cover pass is used for additional strength and for a smooth finish True
Slag must be completely removed from a weld? True
a 90* degree work angle should be used on a butt joint True
A root pass is the last pass made False
Acetylene gas? Smells like eggs
What should be in your welding gear? D all of the above
When lighting a torch D all of the above
____ Must be tested for leaks before starting welding D all
Flux is esental when welding gray cast iron why? D all
____ filler metal is commonly used for welding aluminum D all
____ is a material that hinders the formation of undesirable materials in welds C. Flux
The main obstacles to a good weld in other positions other than flat is? C. Gravity pull
The over head welding position D all hard doable need to use jig
When welding in the horizontal position the flames should be directed to what? The bottom piece
Weld metal that is deposited should have nearly the same characteristics as? C. the Base metal
____ is not a consideration when picking out an electrode D none
___ is a fast freeze electrode 6010
Rate at which the electrode is moved across the work peice travel speed
In there is no slag the weld the ___ will appear clear and bright Molten metal
as current incresses __ is greater All heat pen burn off
Before starting welding All clean and dry check conections adjust things
What is slag removed with what? Chipping hammer
the ___ angle may range for 5* to 30* b travel
What are measures to reduce arc blow? All reduce current shorten arc welding away from conection
the ___ pass is the pass that provides complete penetration through the work piece C. Root
A work angle of ___ degrees used for the first pass of a T-fillet weld 45*
When deposing beads in the vertical (downhill) position D All
____ electrod can be used for vertical welds A. fast freeze
to reduce cable weight when welding in overhead drape the cable over___ and ___ Shoulder, Knee
Created by: yo2sls
 

 



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