Frequency is calculated by taking the number of field poles on the alternator, multiplying by ____, and then dividing their product by 120.
A. resistance of the stator windings in ohms
B. winding current in amperes
C. rotor speed in rpm
D. field strength in volts
Answer: C
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Answer the following statement true (T) or false (F)
The posttensioning of elevated concrete floors reduces the slab and beam dimensions. This reduces the cost of concrete and reinforcing bars but is compensated for by the added cost of posttensioning steel and the use of more skilled (posttensioning) labor. So, why is posttensioning of concrete structures so popular.
What will be an ideal response?
A cat's meows are directed almost exclusively at:
A. other cats B. prey C. humans D. predators
If the resistance is changed to 40 ohms and (
) is the inductive reactance, what is the impedance (Z)?
Fill in the blank(s) with the appropriate word(s).