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Answer :

Starters are used with D.C. motors because to restrict armature current as there is no back e.m.f. while starting.

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Answer : D.C. shunt motors are used for driving machine tools.

Description : State starters used for i) 3-Ph squirrel cage induction motor (3HP) ii) D.C. motor 

Answer : Name the starters used for following motors : i) 3 H.P. 3-Ph squirrel cage I.M: i) DOL starter OR ii) Star-Delta Starter OR ii) Auto transformer starter OR iii) Soft start starter.  ii) D.C Shunt Motor : 1) Armature resistance starter (Three Point Starter) OR 2) Four Point Starter 

Description : Stepper motors are used in  (1) printers (2) lifts (3) amplifiers (4) oscillators

Answer : Stepper motors are used in printers 

Description : What are the five types of single phase motors used in the industry?

Answer : The capacitors used in single-phase capacitor motors have no polarity marking.