Electrical Machines From no load to full load the slip will slightly increase. slightly decrease. None of these not change. slightly increase. slightly decrease. None of these not change. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machine armature windings are placed on rotor because of the necessity for generation of voltage. development of torque. commutation. electromechanical energy conversion. generation of voltage. development of torque. commutation. electromechanical energy conversion. 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 5.7 Ω 2.2 Ω 6 Ω 1.9 Ω 5.7 Ω 2.2 Ω 6 Ω 1.9 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the space waveform of the air-gap flux distribution affects torque but not the voltage voltage but not the torque both the torque and voltage neither the voltage nor the torque torque but not the voltage voltage but not the torque both the torque and voltage neither the voltage nor the torque ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will happen if the the supply terminals are reversed in case of a DC shunt motor? The motor will run much faster in the same direction. The motor will run at its normal speed in the same direction as before. The motor will run in reverse direction. The motor will stop. The motor will run much faster in the same direction. The motor will run at its normal speed in the same direction as before. The motor will run in reverse direction. The motor will stop. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole, 3-phase induction motor is running at 4% slip at full load. If the speed of the motor is 720 rpm, the supply frequency is 40 HZ 50 Hz 25 Hz 60 Hz 40 HZ 50 Hz 25 Hz 60 Hz ANSWER DOWNLOAD EXAMIANS APP
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