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
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
