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Author Question: The speed of a three-phase squirrel cage induction motor is controlled by the frequency of the ... (Read 25 times)

WhattoUnderstand

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on: Jul 24, 2018
The speed of a three-phase squirrel cage induction motor is controlled by the frequency of the applied voltage
  and _____.
 
  a. voltage dropping resistors
  b. the number of poles
  c. full-load torque
  d. armature current

Question 2

The NEC requires motor disconnecting means be _____.
 
  a. 8 feet or more above the floor
  b. within sight of the controller location
  c. guarded
  d. installed so access is limited to qualified persons


DylanD1323

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Reply #1 on: Jul 24, 2018
Answer to Question 1

b

Answer to Question 2

b


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