Electrical Machines Commonly used starters of cage motor is both A and B. None of these DOL. star delta. both A and B. None of these DOL. star delta. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole DC generator rotates at 1500 rpm. How many times in a second, will the emf induced in each armature conductor changes its direction? 100. 500. 750. 200. 100. 500. 750. 200. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor if the load current increases keeping the terminal voltage constant, then flux will decrease. any of the above. increase. remain constant. decrease. any of the above. increase. remain constant. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the speed of stator rotating magnetic field with respect to rotor rotating magnetic field? Slip speed Zero Synchronous speed None of these Slip speed Zero Synchronous speed None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a DC motor is connected across the AC supply it will Not run. Run at normal speed. Burn. Run at lower speed. Not run. Run at normal speed. Burn. Run at lower speed. 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. 0.5 Amp. 400 Amp. 800 Amp. 320 Amp. 0.5 Amp. 400 Amp. 800 Amp. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS