Electrical Machines For a dc machine shunt resistance and armature resistance values are high and low low and low high and high low and high high and low low and low high and high low and high ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To increase starting torque of a 3-phase slip ring induction motor, preferred method is to increase rotor resistance supply voltage supply frequency None of these rotor resistance supply voltage supply frequency None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An inverted V-curve of synchronous motor shows the variation of power factor and dc excitation at constant load supply voltage and field current at constant excitation All of these power factor and supply voltage during hunting power factor and dc excitation at constant load supply voltage and field current at constant excitation All of these power factor and supply voltage during hunting ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor the 7th harmonic torque may make the motor rotate at (1 / 7)th synchronous speed. This is called harmonics. crawling. resonance. cogging. harmonics. crawling. resonance. cogging. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The voltmeter connected across a generator reads voltage same at no load and at full load (rated). The generator is of the type series generator. short - shunt generator. shunt generator. level compound. series generator. short - shunt generator. shunt generator. level compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What does the use the of height flux density value in transformer design lead to? Increase in weight/KVA. Decrease in weight/KVA. Reduced iron loss. Reduced copper loss. Increase in weight/KVA. Decrease in weight/KVA. Reduced iron loss. Reduced copper loss. ANSWER DOWNLOAD EXAMIANS APP
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