Electrical Machines Hysteresis loss is proportional to f1.5. f2. f3. f. f1.5. f2. f3. f. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the effect of armature reaction ? None of the options. Both option B and C. Armature flux distorts the main field flux. Armature flux weakens the main field flux. None of the options. Both option B and C. Armature flux distorts the main field flux. Armature flux weakens the main field flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The inertia constant H of a synchronous condenser is greater than that of turbo alternator. none of these. equal to that of the effective length of the line. greater than that of hydro generator. greater than that of turbo alternator. none of these. equal to that of the effective length of the line. greater than that of hydro generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature resistance of a permanent magnet dc motor is 0.8 Ohm. At no load, the motor draws 1.5 A from a supply voltage of 25 V and runs at 1500 rpm. The efficiency of the motor while it is operating on load at 1500 rpm drawing a current of 3.5 A from the same source will be 59.2%. 48.0%. 88.8%. 57.1%. 59.2%. 48.0%. 88.8%. 57.1%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC motors, under trailing pole tips, flux density will_______ ? increase decrease None of these either increase or decrease increase decrease None of these either increase or decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following motor is preferred for belt conveyor? Synchronous motors. Universal motor. Reluctance motor. Slip ring induction motor. Synchronous motors. Universal motor. Reluctance motor. Slip ring induction motor. ANSWER DOWNLOAD EXAMIANS APP
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