Electrical Machines
Hunting in a synchronous motor takes place

  when load varies.
  when supply voltage fluctuates.
  motor is under loaded.
  when power factor is unity.

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Electrical Machines
In case of a DC Shunt motor if the load is decreased to some extent, what will happen to its speed?

 The speed will increase abruptly.
 The speed will increase in proportion to reduction in load.
 The speed will increase gradually.
 The speed will remains almost constant.

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