Electrical Machines When the armature current of 5 Amp is flowing through the dc motor the torque produced is 47 Nm. Keeping the speed constant if the armature current is increased to 7 amp, calculate the new torque. Assume losses to be constant. 27.73 Nm . 65.8 Nm. 74 Nm. 38.5 Nm. 27.73 Nm . 65.8 Nm. 74 Nm. 38.5 Nm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the function of inter pole in DC generator? To neutralize the distortion of main field flux due to armature reaction. To serve the economical aspects. Both option B and C. To get a superior commutation. To neutralize the distortion of main field flux due to armature reaction. To serve the economical aspects. Both option B and C. To get a superior commutation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test on induction motor is conducted to find which of the following losses? Stator core loss Stator copper loss Rotational loss All of these Stator core loss Stator copper loss Rotational loss All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Breadth factor is defined as the ratio of None of these emf with distributed winding to emf with concentrated winding. emf with concentrated winding to emf with distributed winding. both 1 and 2. None of these emf with distributed winding to emf with concentrated winding. emf with concentrated winding to emf with distributed winding. both 1 and 2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following induction motor has maximum speed? 6 pole. 2 pole. 4 pole. 8 pole. 6 pole. 2 pole. 4 pole. 8 pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The type of DC motor used for shears and punches is Cummulative compound motor. Shunt motor. Series motor. Differential compound motor. Cummulative compound motor. Shunt motor. Series motor. Differential compound motor. ANSWER DOWNLOAD EXAMIANS APP
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