Electrical Machines The armature resistance of the dc motor is generally of the range 50 ohm. 0.1 ohm. 100 ohm. 0.5 ohm. 50 ohm. 0.1 ohm. 100 ohm. 0.5 ohm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a specific open-circuit voltage of a DC generator, the short-circuit electric current will be maximum when it is differentially compounded. cumulatively compounded. separately excited. shunt connected. differentially compounded. cumulatively compounded. separately excited. shunt connected. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Pole changing methods are suitable only for ___________ type induction motor. none of these. wound. cage. linear. none of these. wound. cage. linear. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Neglecting all losses, the developed torque (T) of DC separately excited motor, operating under constant terminal voltage is reduced to its output power (P) as T is independent of P. T2 ∝ P3. T ∝ √P. T ∝ P. T is independent of P. T2 ∝ P3. T ∝ √P. T ∝ P. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine, the angle between the stator and rotor fields is 90o. dependent upon the load. 0o. 180o. 90o. dependent upon the load. 0o. 180o. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For satisfactory parallel operation of two transformers which of the following conditions is most essential, MVA rating of all transformer inversely proportional to impedance. voltage ratio of all transformers must be same. percentage impedance of all transformers must be same. polarities of all transformers must be same. MVA rating of all transformer inversely proportional to impedance. voltage ratio of all transformers must be same. percentage impedance of all transformers must be same. polarities of all transformers must be same. ANSWER DOWNLOAD EXAMIANS APP
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