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 ____ are used by the power company to step up the voltage for long distance transmission. 

The degree to which the voltage is stepped up or down is directly related to ____. 

The output from the bridge rectifier is considered choppy and must be smoothed out by a(n) ____ before being used in the welding circuit. 

 ____ have the advantage of being able to adjust the shape of the AC wave shape. 

If you were welding thin aluminum with a heavy oxide layer, you should set the wave balance to more ____.

Low voltage circuits are desirable for welding because ____. 

When welding titanium or zirconium, the GTAW process is ideal because ____.

Which of the following base metals should be welded with AC polarity?

One of the biggest advantages of GTAW is the ability to weld very thin metals, using amperages as low as ____.

The GTAW process was invented to improve welding on ____, which proved valuable for aircraft production during World War II.