Electrical Machines An inverted V curve of synchronous motor shows variation of supply voltage and excitation current at constant load. power factor and DC excitation at constant load. power factor and supply voltage during hunting. supply voltage and field current at constant excitation. supply voltage and excitation current at constant load. power factor and DC excitation at constant load. power factor and supply voltage during hunting. supply voltage and field current at constant excitation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC motors has got maximum relieving property? Differentical compound. Cummulative compound. Shunt. Series. Differentical compound. Cummulative compound. Shunt. Series. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When pure inductive load is connected to the alternator, what is the effect of armature reaction? Cross magnetization Demagnetization Magnetization None of these Cross magnetization Demagnetization Magnetization None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 50Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor output power? 1450W 1820W 2000W 1920W 1450W 1820W 2000W 1920W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the full load speed of 3-phase, 50Hz induction motor is 950 rpm, what is its half load speed nearly equals to? 950 rpm 1000 rpm 940 rpm 975 rpm 950 rpm 1000 rpm 940 rpm 975 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A flat compound generator is obtained from compound generator by connecting a variable resistor in parallel with the shunt field in series with the series field in series with the shunt field in parallel with the series field in parallel with the shunt field in series with the series field in series with the shunt field in parallel with the series field ANSWER DOWNLOAD EXAMIANS APP
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