Electrical Machines Hysteresis loss will depends on f² f1.6 f f³ f² f1.6 f f³ ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the armature electric current is increased to double its previous value, and the time of commutation is halved, how will the reactance voltage vary? It will becomes four times. It will remain the same. It will be doubled. It will be halved. It will becomes four times. It will remain the same. It will be doubled. It will be halved. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is not suitable for frequent starting and stopping? Capacitor run motor Capacitor split phase motor All of these Resistance split phase motor Capacitor run motor Capacitor split phase motor All of these Resistance split phase motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 50 Hz, 4 pole induction motor is running at 1440 rpm. Find the rotor efficiency? 95% 96% 94% 92% 95% 96% 94% 92% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC series generator, the terminal voltage with increase in load will increase to rated voltage and then may decrease remain nearly constant decrease increase gradually and then stay at rated voltage increase to rated voltage and then may decrease remain nearly constant decrease increase gradually and then stay at rated voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous machine, if the field flux axis is ahead of the armature field axis in the direction of rotation, the machine operating is synchronous generator. asynchronous motor. synchronous motor. asynchronous generator. synchronous generator. asynchronous motor. synchronous motor. asynchronous generator. ANSWER DOWNLOAD EXAMIANS APP
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