Seam welds can be made by producing a series of overlapping ____ or be one continuous resistance weld.

A. groove welds
B. plug welds
C. butt welds
D. spot welds


Answer: D

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To show that the service facility wants to do a good job for the first time customer, which form(s) might be completed?

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Which refrigerant is due to be phased out (no new refrigerant manufactured) by 2030?

a. HFC-410A b. HFC-407A c. HCFC-22 d. HFC-417A

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In the thread specification 3/4 - 14 NPT, 3/4 represents _____

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The function that is equal to the adjacent divided by the hypotenuse is the _____.

A. cosine B. sine C. tangent D. cotangent

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