The ripple voltage from a power supply ________
A) is zero B) is about 1 V C) varies with load D) is very high
C
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The basic ____ furnace has a large pear-shaped vessel lined with refractory material.
A. blast B. electric arc C. oxygen D. induction
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Explain a projected tolerance zone.
What will be an ideal response?
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If water begins to accumulate in a trench where you are at work, you should _____.
a. inform your supervisor b. locate the source of the water c. immediately get out of the trench d. send for pumping equipment
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When would you use an air test for a sewer system?
What will be an ideal response?
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