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 25% 5% 2% 4% 25% 5% 2% 4% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the shunt resistance component equivalent circuit obtained by no load test of an induction motor representative of ? Copper loss core loss only windage and friction loss both 1 and 2 Copper loss core loss only windage and friction loss both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In diesel engine, gas engine type of machine contains ___________________ pole type of alternator. cylindrical. non uniform cylindrical. none of these. salient. cylindrical. non uniform cylindrical. none of these. salient. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an alternator, voltage drops occurs in armature resistance, leakage reactance, armature reaction and earth connection. armature resistance, leakage reactance and armature reaction. armature resistance only. armature resistance and leakage reactance. armature resistance, leakage reactance, armature reaction and earth connection. armature resistance, leakage reactance and armature reaction. armature resistance only. armature resistance and leakage reactance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. The frequency of rotor current is 1 Hz 5 Hz 0 Hz 50 Hz 1 Hz 5 Hz 0 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eg (generated emf) and Eb (back emf) both are changes. same. none of above. different. changes. same. none of above. different. ANSWER DOWNLOAD EXAMIANS APP
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