Electrical Machines The power factor of an induction motor operating at no load will have a value around 0.2 lag unity 0.2 lead 0.9 lag 0.2 lag unity 0.2 lead 0.9 lag ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Capacitor start capacitor run provides none. high staring torque and high power factor. high staring torque only. high power factor only. none. high staring torque and high power factor. high staring torque only. high power factor only. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hopkinss test in DC motor is conducted at ? Full load. Low load. No load. None of these. Full load. Low load. No load. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An electric motor with constant output power will have a torque speed characteristics in the form of a Circle about the origin. Straight line parallel to the speed axis. Straight line through the origin. Rectangular hyperbola Circle about the origin. Straight line parallel to the speed axis. Straight line through the origin. Rectangular hyperbola ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor of a three phase induction motor has an impedance of 0.4 + j4 ohm per phase at standstill the maximum torque occurs at a slip of _____________. 15 %. 50 %. 10 %. 25 %. 15 %. 50 %. 10 %. 25 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 230 volt dc motor has an armature winding resistance of 0.5 ohm. Calculate the emf induced by the motor if the full load armature current is 23 ampere. 120 volt. 220.4 volt. None of these. 218.5 volt. 120 volt. 220.4 volt. None of these. 218.5 volt. ANSWER DOWNLOAD EXAMIANS APP
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