Electrical Machines When the supply terminal of a DC shunt motor are interchanged The motor will stop. The motor will run much faster in the same direction. The direction of rotation will reverse. The motor will run at its normal speed in the same direction as before. The motor will stop. The motor will run much faster in the same direction. The direction of rotation will reverse. The motor will run at its normal speed in the same direction as before. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a motor falls from 1100 r.p.m at no-load to 1050 r.p.m at rated load. The speed regulation of motor is 4.76%. 3.76%. 2.57 %. 2.56 %. 4.76%. 3.76%. 2.57 %. 2.56 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the frequency of input voltage of a transformer is increased keeping the magnitude of voltage unchanged, then Ph will increase but Pe will decrease Ph will decrease but Pe will remain same Pe will increase but Ph will decrease both hysteresis loss(Ph) and eddy current loss(Pe) will increase Ph will increase but Pe will decrease Ph will decrease but Pe will remain same Pe will increase but Ph will decrease both hysteresis loss(Ph) and eddy current loss(Pe) will increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A short-shunt cumulatively-compounded dc generator builds up a voltage of 220 V at no load at rated speed. If it is operated as a differentially compounded generator, other things remaining the same, it would build up 6 V more than 220 V somewhat less than 220 V 220 V 6 V more than 220 V somewhat less than 220 V 220 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of rotation of 5th harmonic component in the stator of an induction motor is 5 times the synchronous speed. (1 / 5) times the synchronous speed. (1 / 15) times the synchronous speed. 0.5 times the synchronous speed. 5 times the synchronous speed. (1 / 5) times the synchronous speed. (1 / 15) times the synchronous speed. 0.5 times the synchronous speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hopkinson test is conducted under which of the following condition? half load no load full load any of the above half load no load full load any of the above ANSWER DOWNLOAD EXAMIANS APP
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