The speed of a three-phase squirrel cage induction motor is ...

[WhattoUnderstand]

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]

Answer to Question 1

b

Answer to Question 2

b