Electrical Machines A DC series motor is running with a divertor connected across its field winding. If the divertor resistance is reduced then the speed of the motor will become execessively high. increase. decrease. remain unaltered. become execessively high. increase. decrease. remain unaltered. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine current and emf at the terminals are alternating. current and emf in armature are unidirectional current and emf in armature are alternating. emf in armature conductors and at the terminals is alternating. current and emf at the terminals are alternating. current and emf in armature are unidirectional current and emf in armature are alternating. emf in armature conductors and at the terminals is alternating. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the above problem, find the induced voltage of an alternator of it is to deliver a load of 100 A at power factor of 0.8 lagging with terminal voltage of 200 V. 220 V. 222 V. 225 V. 230 V. 220 V. 222 V. 225 V. 230 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is expensive for same Kw output rates? DC Shunt Motor AC single phase motor. Synchronous motor. Induction motor. DC Shunt Motor AC single phase motor. Synchronous motor. Induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC motors, under trailing pole tips, flux density will_______ ? increase either increase or decrease None of these decrease increase either increase or decrease None of these decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An IM cannot run at synchronous speed because rotor torque will not be produced. air friction will prevent it. induction motor will become synchronous motor. none of above. rotor torque will not be produced. air friction will prevent it. induction motor will become synchronous motor. none of above. ANSWER DOWNLOAD EXAMIANS APP
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