Electrical Machines The output power of any electrical motor is taken from the Coupling mounted on the shaft. Field. Motor frame. Armature. Coupling mounted on the shaft. Field. Motor frame. Armature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the back emf in DC motor vanishes suddenly the motor will burn. run at very low speed. run at very high speed. start haunting. burn. run at very low speed. run at very high speed. start haunting. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Total core loss is also called as -------------? Hysteresis loss Eddy current loss Magnetic loss Copper loss Hysteresis loss Eddy current loss Magnetic loss Copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For satisfactory performance of 3-phase 480V, 60 Hz induction motor, the supply voltage at 50 Hz should be equal to 480 V. 350 V. 420 V. 400 V. 480 V. 350 V. 420 V. 400 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC Shunt Motor having armature resistance of 0.5 Ω and 2A armature current at no-load, when the armature current is changed to 20A at loaded condition the speed is 1000 r.p.m. What is the speed at no-load? 963.8 r.p.m. 1130 r.p.m. 4575.4 r.p.m. 1037.5 r.p.m. 963.8 r.p.m. 1130 r.p.m. 4575.4 r.p.m. 1037.5 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous generator V curve is drawn between field current on X-axis and armature current on Y-axis. either of these. field current on Y-axis and armature current on X-axis. field current on X-axis and power factor on Y-axis. field current on X-axis and armature current on Y-axis. either of these. field current on Y-axis and armature current on X-axis. field current on X-axis and power factor on Y-axis. ANSWER DOWNLOAD EXAMIANS APP
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