Electrical Machines Dummy coils are used for increasing efficiency. All of these reducing armature reaction. mechanical balancing. increasing efficiency. All of these reducing armature reaction. mechanical balancing. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A single-phase transformer has its maximum efficiency at 60 percent of full load. At full load copper loss will be zero. equal to core loss. more than core loss. less than core loss. zero. equal to core loss. more than core loss. less than core loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Rotating part of DC motor is known as Starter. Pole. Armature. Carbone brush. Starter. Pole. Armature. Carbone brush. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines _____________ types of induction motor are widely used. Squirrel cage IM. Three phase IM. Slip ring IM. Single phase IM. Squirrel cage IM. Three phase IM. Slip ring IM. Single phase IM. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In V/f speed control of 3-phase induction motor, with increase in frequency, the slip at which maximum torque occurs decrease. None of these increase. either of these. decrease. None of these increase. either of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC motors, under trailing pole tips, flux density will_______ ? None of these increase either increase or decrease decrease None of these increase either increase or decrease decrease ANSWER DOWNLOAD EXAMIANS APP
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