Electrical Machines A generator may loose residual magnetism due to any of these. over excitation. heating. vibrations. any of these. over excitation. heating. vibrations. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the highest possible speed of turbo alternators? 3000 rpm 1500 rpm 1000 rpm 4000 rpm 3000 rpm 1500 rpm 1000 rpm 4000 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test of 3-phase induction motor gives which of the following? None of these both A and B variable loss constant loss None of these both A and B variable loss constant loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutator pitches of duplex and simplex lap windings are respectively 2 and 2 2 and 1 4 and 2 4 ang 1 2 and 2 2 and 1 4 and 2 4 ang 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Capacitor in split phase induction motor is used to reduce the harmonics. improve the starting torque. improve the power factor. start the motor. reduce the harmonics. improve the starting torque. improve the power factor. start the motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 6 pole lap connected DC generator with 480 conductors has armature resistance of 0.06 Ω. If the conductors are reconnected to from a wave winding other things remaining unchanged, the value of armature resistance will be 0.01 Ω. 0.54 Ω. 0.54 Ω. 0.06 Ω. 0.01 Ω. 0.54 Ω. 0.54 Ω. 0.06 Ω. ANSWER DOWNLOAD EXAMIANS APP
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