Electrical Machines The oscillation in a synchronous motor can be damped out by providing damper bars in the rotor pole faces. maintaining constant excitation. oscillation cannot be damped. running the motor on leading power factors. providing damper bars in the rotor pole faces. maintaining constant excitation. oscillation cannot be damped. running the motor on leading power factors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motors have the advantage of all of below. less maintenance. less cost. simple in construction. all of below. less maintenance. less cost. simple in construction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For which of the following loads, armature reaction is magnetizing in nature? pure inductive load pure capacitive load None of these pure resistive load pure inductive load pure capacitive load None of these pure resistive load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Methods of synchronizing of alternator may be done by all of these. all bright lamp method. all dark lamp method. one dark two bright. all of these. all bright lamp method. all dark lamp method. one dark two bright. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The supply voltage to an induction motor is reduced by 10%. By what percentage, approximately, will the maximum torque decrease? 19% 40% 10% 5% 19% 40% 10% 5% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On which of the following factor/factors the speed of a DC motor depends upon? All of these. Field flux. Armature current. Applied voltage. All of these. Field flux. Armature current. Applied voltage. ANSWER DOWNLOAD EXAMIANS APP
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