Electrical Machines Which of these types of motor is used in elevators? DC series motor. DC shunt motor. DC compound motor. None of these. DC series motor. DC shunt motor. DC compound motor. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines From no load to full load the slip will not change. None of these slightly increase. slightly decrease. not change. None of these slightly increase. slightly decrease. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is not a necessary condition to be satisfied for synchronising an incoming alternator to an already operating alternator? same voltage magnitude same prime mover speed same phase sequence same frequency same voltage magnitude same prime mover speed same phase sequence same frequency ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Scott connections are used for three phase to two phase transformation. single phase to three phase transformation. any of the above. three phase to single phase transformation. three phase to two phase transformation. single phase to three phase transformation. any of the above. three phase to single phase transformation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Cogging of induction motor occurs at high voltage and when stator and rotor poles are not equal. low voltage and when stator and rotor poles are equal. high voltage and when stator and rotor poles are equal. low voltage and when stator and rotor poles are not equal. high voltage and when stator and rotor poles are not equal. low voltage and when stator and rotor poles are equal. high voltage and when stator and rotor poles are equal. low voltage and when stator and rotor poles are not equal. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchronous motor will deliver maximum power when input power factor is unity. load angle is equal to internal angle θ. load angle is 0°. load angle is 45°. input power factor is unity. load angle is equal to internal angle θ. load angle is 0°. load angle is 45°. ANSWER DOWNLOAD EXAMIANS APP
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