Electrical Machines Dynamic braking is very effective for differential compound motors. separately excited motors. series motors. shunt motors. differential compound motors. separately excited motors. series motors. shunt motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4-pole generator with 16 coil has a two layer lap winding. The pole pitch is 4. 8. 16. 32. 4. 8. 16. 32. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the frequency of rotor current of 50 Hz induction motor operating at 4% slip? 2HZ 1 Hz 50Hz 2.5Hz 2HZ 1 Hz 50Hz 2.5Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If B is flux density, l the length of the conductor and v the velocity of the conductor, then emf is given by Blv2. Bl2v2. Blv. Bl2v. Blv2. Bl2v2. Blv. Bl2v. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Field divertor method of speed control of a DC series motor gives speed above rated one due to reduction of None of above. Line current. Armature current. Field current. None of above. Line current. Armature current. Field current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The polarity of a DC generator can be reversed by any of above. increasing field current. reversing field electric current as well as direction of rotation. reversing the field current. any of above. increasing field current. reversing field electric current as well as direction of rotation. reversing the field current. ANSWER DOWNLOAD EXAMIANS APP
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