Electrical Machines Slip exists in synchronous motor. none of above. in both machines. induction motor. synchronous motor. none of above. in both machines. induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Regenerative braking is possible in DC compound motor. DC shunt motor with field weakening control. DC shunt motor with armature resistance control. DC series motor. DC compound motor. DC shunt motor with field weakening control. DC shunt motor with armature resistance control. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the commutator pitch? The distance between the staring of first coil and its next successive coil Number of conductors spanned by one coil at the back end of the armature. Number of conductors spanned by one coil at the front end of the armature. Number of commutator segments between two successive coils. The distance between the staring of first coil and its next successive coil Number of conductors spanned by one coil at the back end of the armature. Number of conductors spanned by one coil at the front end of the armature. Number of commutator segments between two successive coils. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The frequency of voltage generated by an alternator having 8 poles and rotating at 250 rpm is 60 Hz. 50 Hz. 25 Hz. 16.67 Hz. 60 Hz. 50 Hz. 25 Hz. 16.67 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a DC motor can be determined by Lenz's law. Fleming's left hand rule. Ampere's law. Fleming's right hand rule. Lenz's law. Fleming's left hand rule. Ampere's law. Fleming's right hand rule. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In shunt dc motor the direction of rotation of the motor will reversed. When none of above. only field terminals are changed. only armature terminals are reversed. either field terminals are reversed or armature terminals are reversed. none of above. only field terminals are changed. only armature terminals are reversed. either field terminals are reversed or armature terminals are reversed. ANSWER DOWNLOAD EXAMIANS APP
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