Electrical Machines Which of these types of motor is self starting? Single phase induction motor. None of these. Poly-phase induction motor. Poly-phase synchronous machine. Single phase induction motor. None of these. Poly-phase induction motor. Poly-phase synchronous machine. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The polarity of a DC generator can be reversed by increasing field current. any of above. reversing field electric current as well as direction of rotation. reversing the field current. increasing field current. any of above. reversing field electric current as well as direction of rotation. reversing the field current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Cross magnetization effects which of the following? both 2 and 3 commutation reduces the terminal voltage reduction in main field flux both 2 and 3 commutation reduces the terminal voltage reduction in main field flux ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC Motor is driving a constant load torque having armature resistance of 0.25 Ω and armature current of 60 A having connected to a voltage of 230 V. Now a resistance of 1 ohm is added into the armature circuit. The ratio of their speed will be 0.62. 1.24. 0.25. 0.72. 0.62. 1.24. 0.25. 0.72. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following voltage regulator is preferred for providing large values of load current? Transistor shunt regulator. Transistor series regulator. Zener diode shunt regulator. None of these Transistor shunt regulator. Transistor series regulator. Zener diode shunt regulator. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A load of 900 lbs is to be raised with a lift car weighting 855 lbs at a speed of 110 feet per minute, the over balance being 40 % and percentage efficiency 45 %. Find the horse power of the motor without counterweight 170. 160. 180. 150. 170. 160. 180. 150. ANSWER DOWNLOAD EXAMIANS APP
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