Electrical Machines A voltmeter gives 120 oscillations per minute when connected to the rotor of an induction motor. The frequency is 50Hz. The slip of the motor is 4% 5% 25% 2% 4% 5% 25% 2% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, the electricity produced in armature is AC. None of these armature is not present in DC generator. DC. AC. None of these armature is not present in DC generator. DC. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 230 V dc series generator is driven at its rated speed. The no-load voltage across its armature terminals would be somewhat more than 230 V 230 V 6 V somewhat less than 230 V somewhat more than 230 V 230 V 6 V somewhat less than 230 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If starter is not used with large DC motor for starting, it will provide execessive voltage drop in line. draw a starting current many times its rated full load current. damage the armature and commutator. all of above. provide execessive voltage drop in line. draw a starting current many times its rated full load current. damage the armature and commutator. all of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In V/f speed control of 3-phase induction motor, with increase in frequency, the slip at which maximum torque occurs either of these. decrease. increase. None of these either of these. decrease. increase. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The coil spam may or may not be exactly equal to people pitch. can never be equal to pole pitch. none of above. must be exactly equal to people pitch. may or may not be exactly equal to people pitch. can never be equal to pole pitch. none of above. must be exactly equal to people pitch. ANSWER DOWNLOAD EXAMIANS APP
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