Electrical Machines Torque developed in the rotor is not dependent on the slip inversely proportional to slip directly proportional to slip either of these not dependent on the slip inversely proportional to slip directly proportional to slip either of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is expensive for same Kw output rates? Synchronous motor. DC Shunt Motor AC single phase motor. Induction motor. Synchronous motor. DC Shunt Motor AC single phase motor. Induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The maximum possible speed at which an alternator can be driven to generate 50 Hz and 4000 V is 4000 rpm. 3000 rpm. 1500 rpm. 3600 rpm. 4000 rpm. 3000 rpm. 1500 rpm. 3600 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of 3 - Φ IM, plugging means interchanging two supply phases for quick stopping. locking of rotor due to harmonics. starting the motor on load which is more than the rated load. pulling the motor directly on line without a rotor. interchanging two supply phases for quick stopping. locking of rotor due to harmonics. starting the motor on load which is more than the rated load. pulling the motor directly on line without a rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature of DC machine is made of silicon steel lamination to reduce eddy current loss only. reduce hysteresis loss only. reduce both eddy current and hysteresis loss. increase the permeability. reduce eddy current loss only. reduce hysteresis loss only. reduce both eddy current and hysteresis loss. increase the permeability. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If terminal voltage of one 1000 rpm shunt motor is reduced to half the speed of the motor will be 1000 rpm 250 rpm 2000 rpm 500 rpm 1000 rpm 250 rpm 2000 rpm 500 rpm ANSWER DOWNLOAD EXAMIANS APP
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