If the frequency supplied by the AC drive is lowered and the voltage is held constant, the excitation current __________.
A. increases
B. decreases
C. stays the same
Answer: A
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The rotating pulsed magnetic fields surrounding the stator turn faster than the rotor. The difference between the two speeds is called ____________________.
Fill in the blank(s) with the appropriate word(s).
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Describe how time affects soil change
What will be an ideal response?
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Turf preparation and maintenance require good soil preparation, including tilling and any needed
amendments, raking or harrowing, irrigation during establishment, use of high-nitrogen fertilizer, and aeration.
Indicate whether the statement is true or false.
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A water pump is a positive displacement-type pump
Indicate whether the statement is true or false
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