Electrical Machines In DC machine shape of armature MMF wave is? Peaky in nature. Saddle shape. Triangular and directed towards main pole. Triangular and directed towards brush axis. Peaky in nature. Saddle shape. Triangular and directed towards main pole. Triangular and directed towards brush axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The heat transfer by convection in a transformer least depends on temperature difference. color of the paint. air velocity. surface area. temperature difference. color of the paint. air velocity. surface area. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature of a DC motor is laminated to reduce copper loss. hysteresis loss. eddy current loss. friction and windage loss. copper loss. hysteresis loss. eddy current loss. friction and windage loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In most condition which frame of motor will be preferred? Open type. Splash proof. Totally enclosed fan coiled. Drip proof. Open type. Splash proof. Totally enclosed fan coiled. Drip proof. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine, which of these parameters remain the same whether it runs as a DC motor or a DC generator? Mechanical power. Can not be determined. Armature current. Induced emf. Mechanical power. Can not be determined. Armature current. Induced emf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What type of dielectric material is used in capacitors used for fans and for power factor correction? Mica. Oil impregnated paper. Glass. Vacuum. Mica. Oil impregnated paper. Glass. Vacuum. ANSWER DOWNLOAD EXAMIANS APP
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