Important Industrial Drive Multiple Choice Questions and Answers

16.  Which feature while selecting a motor for centrifugal pump will be of least significance?

   A. Starting characteristics

   B. Operating speed

   C. Horse power

   D. Speed control

17.  Which part of a motor needs maximum attention for maintenance?

   A. Frame

   B. Bearing

   C. Stator winding

   D. Rotor winding

18.  While selecting an electric motor for a floor Mill, which electrical characteristics will be of least significance ?

   A. Running characteristics

   B. Starting characteristics

   C. Efficiency

   D. Breaking

19.  Which off the following motors is used for elevators?

   A. Induction motor

   B. Synchronous motor

   C. Capacitor start single phase motor

   D. Any of the above

20.  ...........is preferred for synthetic fibre mails

   A. Synchronous motor

   B. Reluctance motor

   C. Series motor

   D. Shunt motor

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