EXAMIANS
A three phase 400 V, 6 pole, 50 Hz, squirrel cage induction motor is running at a slip of 5%. The speed of stator magnetic field with respect to rotor magnetic field and speed of rotor w.r.t stator magnetic field are
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For a DC Motor for constant load torque, what will happen to the armature current if armature resistance increases?
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Which of following DC generator will be in a position to build up without any residual magnetism in the field?
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If the speed of a dc motor increases with load torque, then it is a
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Under which of the following conditions hunting of synchronous motor is likely to occur ?
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In an induction motor, what is the ratio of rotor input to rotor copper loss?
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A commutator in DC machines can 1. provide half-wave rectification 2. Provide full-wave rectification 3. convert ac to dc 4. Convert dc to ac 5. provide controlled full-wave rectification From these, the correct answer is
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At the instant of starting, the per unit slip of 3 - Φ induction motor is
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Which of the following transformer insulating oil generally used in India?
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In a lap winding dc machine number of conductors are 100 and number of parallel paths are 10. Find the average pitch
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