The force acting at the rim of the rotor multiplied by the radius from the center of the rotor is called the ____.
A. horsepower
B. torque
C. rotor speed
D. angular momentum
Answer: B
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A good electrical connection should _____.
a. last for approximately 90 days without any maintenance or repairs b. be mechanically and electrically secure c. have a resistance of no more than 25 ohms d. have a resistance of no more than 13 ohms
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In an air-to-air heat pump, defrost is accomplished by _____.
a. placing the unit in the cooling mode b. using electric heaters to warm the outdoor coil c. running hot water over the outdoor coil d. using electric heaters to warm the indoor coil
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Dropbox is this type of profit model:
A. Installed base B. New business model C. Protected innovation D. Low cost
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