When an object is plumb, it is _____
a. perfectly vertical
b. angular
c. side-by-side
d. perfectly horizontal
a
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A computer ____________________ is where CAD drawings are produced.
Fill in the blank(s) with the appropriate word(s).
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The only tool needed to join the industrial-type trolley duct is a ____.
A. hammer B. welder C. screwdriver D. rivet gun
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SDI measures
A) visibility through smoke. B) rate of smoke generation. C) amount of carbon dioxide in smoke. D) toxicity of smoke. E) none of the above.
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Sometimes partially used electrodes may cause a small ____________________ in the weld as they are restarted.
Fill in the blank(s) with the appropriate word(s).
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