Electrical Machines Hopkinson test is conducted under which of the following condition? full load any of the above no load half load full load any of the above no load half load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Mechanical energy is supplied to DC generator at the rate of 4200 J / s. The generator delivers 32.2 Amp at 120 V. What is the percentage efficiency of the generator? 210 V. 201.02 V. 205 V. 212 V. 210 V. 201.02 V. 205 V. 212 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eb/Vt ratio of a DC motor is an indication of starting torque. efficiency. running torque. speed regulation. starting torque. efficiency. running torque. speed regulation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A transformer has resistance and reactance in per unit as 0.01 and 0.04 respectively. Its voltage regulation for 0.8 power factor lagging and leading will be 3.2% and -1.6% None of these 4.8% and -3.2% 6% and -4% 3.2% and -1.6% None of these 4.8% and -3.2% 6% and -4% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous motor the torque is proportional to P² 1/P² 1/P Power P P² 1/P² 1/P Power P ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Magnetic field of a DC generator is produced by what? Electromagnets. None of the options. Permanent magnets. Both B and C. Electromagnets. None of the options. Permanent magnets. Both B and C. ANSWER DOWNLOAD EXAMIANS APP
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