WorksheetsGas Tungsten Arc Welding: Equipment & Set-Up
Total questions: 10
Worksheet time: 5mins
Which of the following currents can be used to weld both carbon and stainless steel?
DC positive
AC negative
DC negative
AC positive
What rate did the welder use when setting the flow meter?
15 to 20 cubic feet per hour
5 to 10 cubic feet per hour
20 to 25 cubic feet per hour
10 to 20 cubic feet per hour
What is the duty cycle percentage on a Dynasty® machine if the volts are set to 200?
10 percent
40 percent
60 percent
80 percent
Which of the following parts of the welding torch has a split in it to allow it to be tightened up and help the electrode from slipping?
Cup
Collet
Nozzle
Cap
Which of the following is NOT a type of tungsten mentioned in the segment?
Lanthanated
Ceriated
Zirconiated
Thoriated
What are the characteristics of argon gas when used in a welding environment?
Hot gas, excites molecules, very light
Neutral gas, provides good coverage, slows molecules
Cold gas, lays very low, provides good coverage
Warm gas, lays high, very heavy
Where does the welder state is the best place to put the ground clamp?
Attached to the welding table
On any metal surface
Attached directly to the piece being worked on
On the floor next to the welder
What is the function of a rod with copper flash on it?
Allows the puddle to remain fluid longer
Provides an attractive look to the weld surface
Prevents oxidization and rusting
Allows for a faster freezing puddle
When the welding machine is set to HF impulse, what happens once the pedal is pressed?
The welding machine is turned off
The gas flow is automatically stopped
The current will change from positive to negative
The high frequency will jump to allow the establishment of the arc
Which of the following is NOT one of the practices the welder suggests when cleaning up at the end of the day?
Check all hoses for leaks
Wrap up the foot pedal
Turn off the water pump
Sweep the floor
