How long does it take to pull a deep vacuum?

What will be an ideal response?


There is no specific time. A deep vacuum is measured by vacuum level, not time.

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A delta-connected motor has _____.

a. 3 leads b. 6 leads c. 8 leads d. 9 leads

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The concrete form accessory shown in the figure above is a _____.



a. spacer
b. form tie
c. waler
d. spreader

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What is the difference between a face shield and an arc-rated face shield?_____________________________________________________________________

What will be an ideal response?

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The ratio of true power in watts to apparent power in volt-amps is called the ____.

A. true factor B. apparent factor C. power factor D. watts/volt-amps factor

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