Electrical Machines In electric locomotives which of the following motor are used ? DC Shunt motor. DC series motor. DC compound motor. Synchronous motor. DC Shunt motor. DC series motor. DC compound motor. Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation is critical, the power factor of the alternator is lagging power factor. leading power factor. unity power factor. None of these lagging power factor. leading power factor. unity power factor. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the effect of armature reaction ? None of the options. Armature flux distorts the main field flux. Armature flux weakens the main field flux. Both option B and C. None of the options. Armature flux distorts the main field flux. Armature flux weakens the main field flux. Both option B and C. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the armature windings are placed on the rotor because of the necessity for development of torque commutation electromechanical energy conversion generation of voltage development of torque commutation electromechanical energy conversion generation of voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Alternator operates on the principle of self induction. electromagnetic induction. mutual induction. self or mutual induction. self induction. electromagnetic induction. mutual induction. self or mutual induction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a resistance split phase motor, what is the range of torque angle? 90° 70° to 85° 0° 25° to 30° 90° 70° to 85° 0° 25° to 30° ANSWER DOWNLOAD EXAMIANS APP
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