Electrical Machines If the applied voltage of a certain transformer is increased by 50% and the frequency is reduced by 50%, the maximum flux density will (assuming that the magnetic circuit remains unsaturated) changes to three times the original value changes to 1.5 times the original value remain the same as the original changes to 0.5 times the original value changes to three times the original value changes to 1.5 times the original value remain the same as the original changes to 0.5 times the original value ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a fault at the terminal of a synchronous generator, the fault current is maximum for a line to ground fault. 3 - phase to ground fault. line to line fault. 3 - phase fault. line to ground fault. 3 - phase to ground fault. line to line fault. 3 - phase fault. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The squirrel cage induction motors are provided with blades in order to eliminate noise. none of these. balance the rotor dynamically. facilitate cooling of rotor. eliminate noise. none of these. balance the rotor dynamically. facilitate cooling of rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, lap winding is used in where constant speed is required. high voltage and low current applications. where greater load is connected. high current and low voltage applications. where constant speed is required. high voltage and low current applications. where greater load is connected. high current and low voltage applications. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flux density under trailing pole tips in case of generator will decrease increase either increase or decrease None of these decrease increase either increase or decrease None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors are used for lathes? DC shunt motors. Synchronous motor. Cage induction motor. Either A or B. DC shunt motors. Synchronous motor. Cage induction motor. Either A or B. ANSWER DOWNLOAD EXAMIANS APP
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