What is the advantage of using a 4-20 mA current loop for control signals?
What will be an ideal response?
A 4-20 mA signal is not subject to induced noise. In addition, it can indicate an unwanted open path by showing zero mA if an open occurs.
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The distance an electrode is moved from the molten weld pool and the length of time in the molten weld pool are found by watching the____.
A. electrode B. molten weld pool C. length of the arc D. keyhole
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One cup of milk or yogurt equals how many ounces of processed cheese?
a. 1/2 c. 2 b. 1 d. 4
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Electronic starters are much smaller than conventional starters.
Answer the following statement true (T) or false (F)
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Single-phase power supplies always have a neutral wire.
Answer the following statement true (T) or false (F)
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