All drive shafts are balanced.

A) True
B) False


A) True

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Calculate the following:

A three-phase, six-pole, Y-connected, 60 Hz, 480 V induction motor is driving a 300 Nm constant-torque load. The motor has rotational losses of 1 kW. The motor is driven by a slip energy recovery system. The triggering angle of the dc/ac converter is adjusted to 100o a. Motor speed b. Current in the dc link c. Rotor rms current d. Stator rms current e. Power returned back to the source

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If the current is constant, voltage and resistance are directly proportional

Indicate whether the statement is true or false

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In a cycle counting system:

A) the purpose is to correct inventory imbalances. B) item counts are determined by their ABC classification. C) count the A items first, then B's then C's. D) all items are counted each month. E) counts are done at the end of the business year.

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Using MATLAB (or an equivalent mathematical computer tool) graph the signal,


over a time range of 0 < t < 400 ms. Also graph the signal formed by sampling this function at the following sampling intervals:


Based on what you observe what can you say about how fast this signal should be sampled so that it could be reconstructed from the samples?

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