Chapter 10 test review GMAW questions well answered to pass

Chapter 10 test review GMAW questions
well answered to pass

When the hole in the contact tip is worn what problem is created in the weld? - correct answer ✔✔The
Arc ignition is poor



What type of power source is used for gmaw? - correct answer ✔✔Constant voltage



How is the amperage controlled? - correct answer ✔✔By adjusting the speed of the wire



How does the welder determine what size contact tube is needed? - correct answer ✔✔Wire diameter



What does the S represent in ER70S - 6? - correct answer ✔✔Solid Wire



Large amounts of spatter in the MIG gun nozzle can cause what weld problems to occur? - correct
answer ✔✔Poor shielding which leads to porosity



Electric current is transferred to the electrode wire in this part of the gun - correct answer ✔✔Contact
tip



Wire electrode extension is defined as - correct answer ✔✔The end of the contact tube to the tip of the
wire



The rate of speed that the wire comes out of the gun is calculated as - correct answer ✔✔Inches per
minute or millimeters per second



Name the two types of shielding gases that comes out of the guns nozzle - correct answer ✔✔Inert and
Reactive