Electrical Machines Compensating winding are used to rectify the flux density waveform at None of these throughout the air gap. region under main pole. interpole region. None of these throughout the air gap. region under main pole. interpole region. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motors normally use cast aluminium rotor because aluminium is of low resistivity. easy to cast owing to its low melting point and is easily available. lighter in weight. cheaper in cost. of low resistivity. easy to cast owing to its low melting point and is easily available. lighter in weight. cheaper in cost. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In double cage induction motor, the outer cage offers low resistance and low reactance. high resistance and high reactance. low resistance and high reactance. high resistance and low reactance. low resistance and low reactance. high resistance and high reactance. low resistance and high reactance. high resistance and low reactance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What type of dielectric material is used in capacitors used for fans and for power factor correction? Oil impregnated paper. Mica. Glass. Vacuum. Oil impregnated paper. Mica. Glass. Vacuum. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC motors, under trailing pole tips, flux density will_______ ? decrease either increase or decrease increase None of these decrease either increase or decrease increase None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To have sparkless commutation, the armature reaction effect in a DC machine is neutralized by fixing the brush axis inline with the pole axis. compensating winding and commutating poles. increasing field excitation. shifting the brush axis from GNA to MNA. fixing the brush axis inline with the pole axis. compensating winding and commutating poles. increasing field excitation. shifting the brush axis from GNA to MNA. ANSWER DOWNLOAD EXAMIANS APP
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