The high-voltage, low-amperage current supplied to welding machines by commercial power lines is known as _____.
a. primary current
b. commercial current
c. ordinary current
d. secondary current
Answer: A
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What will be an ideal response?
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Answer the following statement true (T) or false (F)
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The pipe axis position can vary by ±5 degrees from the nominal 45-degree angle in the _____
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