Electrical Machines Oil is provided in an oil filled transformer for lubrication. insulating. cooling. both cooling and insulation. lubrication. insulating. cooling. both cooling and insulation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors. Calculate the back emf produced when it is running at a speed of 1500 rpm. 240 volt. 230 volt. 440 volt. 220 volt. 240 volt. 230 volt. 440 volt. 220 volt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction depends on which of the following? None of these both 1 and 2 magnitude of load current power factor of load None of these both 1 and 2 magnitude of load current power factor of load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commonly used starters of cage motor is None of these DOL. star delta. both A and B. None of these DOL. star delta. both A and B. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, the brushes remain in contact with conductors which lie under south pole. lie under north pole. lie in the inter polar gaps. there is no hard and fast rule for this. lie under south pole. lie under north pole. lie in the inter polar gaps. there is no hard and fast rule for this. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The emf induced in a conductor rotating in a bipolar field is both of above. None of these AC. DC. both of above. None of these AC. DC. ANSWER DOWNLOAD EXAMIANS APP
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