Electrical Machines For 250 volt DC Shunt Motor the armature and field resistance are 0.5 ohm and 250 ohm respectively. What will be the back e.m.f. produced when it takes a load current of 21A. 220 V. 240 V. 280 V. 150 V. 220 V. 240 V. 280 V. 150 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The dc motor which can provide zero speed regulation at full load without any controller, is differential compound. shunt. series. cumulative compound. differential compound. shunt. series. cumulative compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors with armature resistance of 0.6 ohm. Calculate the starting current flowing through the armature if the supply voltage is 240 volt. 320 Amp. 400 Amp. 800 Amp. 0.5 Amp. 320 Amp. 400 Amp. 800 Amp. 0.5 Amp. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Centrifugal switch is absent in which of the single phase induction motor? Split phase motor. Shaded pole motor. PSC (permanent split capacitor) motor. None of these Split phase motor. Shaded pole motor. PSC (permanent split capacitor) motor. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ward Leonard control is provides speed control In one direction only. Above rated speed. In both direction. Below rated speed. In one direction only. Above rated speed. In both direction. Below rated speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 240 V dc series motor takes 40 A when giving its rated output at 1500 rpm. Its resistance is 0.3 Ω. The value of resistance which must be added to obtain rated torque at 1000 rpm is 1.9 Ω 5.7 Ω 2.2 Ω 6 Ω 1.9 Ω 5.7 Ω 2.2 Ω 6 Ω ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS