Which of the following termination classes is the only one that provides a seal against external elements
a. Class 1
b. Class 2
c. Class 3
d. Class 5
a. Class 1
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When the SCR is connected in an AC circuit, the output is ____________________ current.
Fill in the blank(s) with the appropriate word(s).
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Technician A uses an impact socket on an impact wrench to tighten lug nuts. Technician B tightens lug nuts in a criss-cross pattern with a torque wrench. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
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Before a panel is tilted up, workers install beam seats and _____
a. panel connectors b. welding plates c. joists d. shelf angles
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Variable frequency drives intended to control motors under 500 horsepower generally use SCRs or GTOs.
Answer the following statement true (T) or false (F)
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