The direction of rotation of a DC motor is determined by facing the commutator end of the motor, which is generally the ____ of the motor.
a. front
b. rear
c. top
d. bottom
b. rear
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In some facilities, a booster heater is used to _____.
a. maintain adequate water pressure on upper floors b. eliminate the need for extra storage tanks c. minimize sediment buildup on hot water piping d. provide higher-temperature water to equipment such as a dishwasher
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What does the acronym MSDS stand for and why is it important?
What will be an ideal response?
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What is meant by the opportunity-cost approach for a replacement study?
What will be an ideal response?
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There are two general classifications of processors: (i) analog and (ii) ____.
A. linear B. digital C. binary D. mathematical
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