Wrapping an energized conductor around an iron bar creates a(n) _____
a. electromagnet
b. rectifier
c. transformer
d. motor
a
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LD50 is a measure of:
a. dispersion c. activity b. toxicity d. suspension
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When measuring resistance, a reading of OL on the DMM indicates ________
A) A defective meter probe B) An open circuit C) Continuity of the circuit D) None of these
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In steel erection, work cannot begin without written notification by the controlling contractor. What information must be contained in the written notification?
What will be an ideal response?
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Which of the following is not a starting method?
A. autotransformer B. wye-delta C. automatic three-point D. plugging
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