Electrical Machines Dissolve gas analysis of transformer oil is carried out to determine condition of transformer oil. condition of transformer. condition of bushings. condition of bushing stud. condition of transformer oil. condition of transformer. condition of bushings. condition of bushing stud. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor is accidentally connected to single phase ac supply voltage. The torque produced will be pulsating and unidirectional oscillating None of these steady and unidirectional pulsating and unidirectional oscillating None of these steady and unidirectional ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC Motor is driving a constant load torque having armature resistance of 0.25 Ω and armature current of 60 A having connected to a voltage of 230 V. Now a resistance of 1 ohm is added into the armature circuit. The ratio of their speed will be 0.62. 0.25. 1.24. 0.72. 0.62. 0.25. 1.24. 0.72. 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 in reverse direction. 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 stop. The motor will run in reverse direction. 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 stop. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 4 pole, 50 Hz induction motor 4 % slip, calculate frequency of the rotor emf? 2 Hz. 10 Hz. 50 Hz. 3 Hz. 2 Hz. 10 Hz. 50 Hz. 3 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The effect of ------------------ on main field flux is armature reaction? armature current armature mmf All of these armature flux armature current armature mmf All of these armature flux ANSWER DOWNLOAD EXAMIANS APP
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