Electrical Machines Which type of motors uses slip rings? Induction motors Both Synchronous and Induction motor Synchronous motors DC Shunt Motor Induction motors Both Synchronous and Induction motor Synchronous motors DC Shunt Motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under which of the following conditions hunting of synchronous motor is likely to occur ? Small and constant load. Periodic variation of load. Over-excitation. Over-loading for long period. Small and constant load. Periodic variation of load. Over-excitation. Over-loading for long period. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Oil is provided in an oil filled transformer for cooling. both cooling and insulation. insulating. lubrication. cooling. both cooling and insulation. insulating. lubrication. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the shunt resistance component equivalent circuit obtained by no load test of an induction motor representative of ? Copper loss core loss only both 1 and 2 windage and friction loss Copper loss core loss only both 1 and 2 windage and friction loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc motors, under leading pole tips flux density will--------? decrease increase None of these either increase or decrease decrease increase None of these either increase or decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine shape of armature MMF wave is? Saddle shape. Peaky in nature. Triangular and directed towards main pole. Triangular and directed towards brush axis. Saddle shape. Peaky in nature. Triangular and directed towards main pole. Triangular and directed towards brush axis. ANSWER DOWNLOAD EXAMIANS APP
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