Electrical Machines The polarity of a DC generator can be reversed by reversing the field current. any of above. reversing field electric current as well as direction of rotation. increasing field current. reversing the field current. any of above. reversing field electric current as well as direction of rotation. increasing field current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the same power output rating and full load speed, the motor will have poorest starting torque, is Differential compound. Cummulative compound. Series. Shunt. Differential compound. Cummulative compound. Series. Shunt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC Motor for constant load torque, what will happen to the armature current if armature resistance increases? None of above. Decreases. Remain unchanged Increases. None of above. Decreases. Remain unchanged Increases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction of an unsaturated DC machine is crossmagnetising. demagnetising. magnetising. none of above. crossmagnetising. demagnetising. magnetising. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 8-pole, DC generator has a simplex wave-wound armature containing 32 coils of 6 turns each. Its flux per pole is 0.06 Wb. The machine is running at 250 rpm. The induced armature voltage is 768 V 192 V 96 V 384 V 768 V 192 V 96 V 384 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What type of connection is made in between the inter-pole and the field winding? None of the options. Parallel. Series. Compound. None of the options. Parallel. Series. Compound. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS