Electrical Machines The armature of DC motor is laminated to reduce the mass. to reduce the inductor. to reduce the eddy current loss. to reduce the hysteresis loss. to reduce the mass. to reduce the inductor. to reduce the eddy current loss. to reduce the hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the purpose of starting an induction motor, star/delta switch is an equivalent to auto transformer of ratio 66.3% 57.7% 50% 33.3% 66.3% 57.7% 50% 33.3% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hopkinson test is conducted under which of the following condition? half load full load any of the above no load half load full load any of the above no load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The core flux in transformer depends mainly on supply voltage and load supply voltage, frequency and load supply voltage supply voltage and frequency supply voltage and load supply voltage, frequency and load supply voltage supply voltage and frequency ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole dynamo with wave wound armature has 51 slots contains 20 conductors in each slot. If induced emf 357 Volts and speed is 8500 rpm, flux per pole will be 1.4 mWb. 3.5 mWb. 1.2 mWb. 2.7 mWb. 1.4 mWb. 3.5 mWb. 1.2 mWb. 2.7 mWb. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of conductor of a DC motor can be determined by Ampere law. Lenz's law. Fleming's right hand rule. Fleming's left hand rule. Ampere law. Lenz's law. Fleming's right hand rule. Fleming's left hand rule. ANSWER DOWNLOAD EXAMIANS APP
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