Electrical Machines Reactive power generated or delivered significantly depends on load angle. frequency. excitation. both 1 and 2. load angle. frequency. excitation. both 1 and 2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Voltage regulation can be determined by which of the following? Synchronous impedance method. All of these ZPF method. MMf method. Synchronous impedance method. All of these ZPF method. MMf method. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test of 3-phase induction motor gives which of the following? variable loss None of these both A and B constant loss variable loss None of these both A and B constant loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole dynamo with wave wound armature has 51 slots contains 20 conductors in each slot. If induced emf 357 Volts and speed is 8500 rpm, flux per pole will be 1.2 mWb. 1.4 mWb. 3.5 mWb. 2.7 mWb. 1.2 mWb. 1.4 mWb. 3.5 mWb. 2.7 mWb. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Interpoles in a DC motor must be Series excited and should have the same polarity as that of the ahead main pole in the direction of rotation of armature. Shunt excited and should have the same polarity as that of the ahead main pole in the direction of rotation of armature. Series excited and should have the same polarity as that of the behind main pole in the direction of rotation of armature. Shunt excited and should have the same polarity as that of the behind main pole in the direction of rotation of armature. Series excited and should have the same polarity as that of the ahead main pole in the direction of rotation of armature. Shunt excited and should have the same polarity as that of the ahead main pole in the direction of rotation of armature. Series excited and should have the same polarity as that of the behind main pole in the direction of rotation of armature. Shunt excited and should have the same polarity as that of the behind main pole in the direction of rotation of armature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The principle of operation of a 3 - Φ induction motor is almost similar to that of repulsion start induction motor. capacitor start induction motor. transformer with secondary short circuited. synchronous motor. repulsion start induction motor. capacitor start induction motor. transformer with secondary short circuited. synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS