After each GTAW bead is completed on a fillet weld, what must be done to the bead prior to starting the next bead?

A) Clean it with a wire brush. B) Let it cool.
C) Preheat it. D) Clean it with a grinder.


A

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Which of the following tailpipe emissions is not currently classified as a noxious emission?

A. carbon monoxide B. carbon dioxide C. sulfur dioxide D. oxides of nitrogen

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? Identify and state the historical significance of "Billy Yank".

What will be an ideal response?

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In soil science, CEC is an abbreviation for _____.

a. Cation Exchange Capacity b. Carbonated Electrical Circuits c. Cationic Eluviation Center d. Calcium Exchange Component

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Most programmable controllers found in industry are designed to accept analog inputs only.

Answer the following statement true (T) or false (F)

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