A serious problem common only to three phase motors is:
A) Single phasing. B) Excessive load.
C) Excessive time on locked rotor amperage. D) Operation at voltages that are too high.
A
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Transistors are used to amplify low-level signals into higher-level signals and to ____?
A. divide voltage B. permit current to only flow in one direction C. control air brakes D. act as an electronic switch similar to a relay
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When preparing a pipe for welding, the _____ step is to prepare the ends of the pipe to meet the requirements of the welding procedure.? ?
A. last? B. first? C. second? D. third?
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There are ________ classes of fire extinguishers
A) 6 B) 8 C) 4 D) 3
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Inductance is measured in ____.
A. farads B. volts C. amperes D. Henrys
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