The tie-in of weld metal to base metal on a completed weld should be _____
a. rough
b. smooth
c. soft
d. discolored
b
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Bubbles in the sight glass always indicate refrigerant shortage.
Answer the following statement true (T) or false (F)
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Pump curves are drawn for different impeller diameters, for a given rotation speed, fluid, and temperature, and show flow versus ______.
Fill in the blank(s) with the appropriate word(s).
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What is the basic difference between an expert system and a conventional computer program?
What will be an ideal response?
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____ shapes are used for most beams and columns in steel-frame buildings.
A. C B. L C. S D. W
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