Electrical Machines The armature reaction mmf in a DC machines has a form of sinusoidal. trapezoidal. rectangular. triangular. sinusoidal. trapezoidal. rectangular. triangular. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor used in hair dryers? Cage induction motor. Synchronous motors. Shaded pole IM. Split phase IM. Cage induction motor. Synchronous motors. Shaded pole IM. Split phase IM. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To get the speed of DC motor more than normal without wastage of electrical energy _____________ is used. none of above. any of above method. rheostatic control. Ward Leonard control. none of above. any of above method. rheostatic control. Ward Leonard control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In IM the rotor lamination can be ________________ than stator laminations. sipper. rotor can not have any laminations. thinner. thicker. sipper. rotor can not have any laminations. thinner. thicker. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flux density under trailing pole tips in case of generator will either increase or decrease increase None of these decrease either increase or decrease increase None of these decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What happens if fifth multiples of harmonics is given to induction motor? It will rotates in normal operation. Either short circuit or open circuit occurs. It will rotates in reverse direction. Fail to start. It will rotates in normal operation. Either short circuit or open circuit occurs. It will rotates in reverse direction. Fail to start. ANSWER DOWNLOAD EXAMIANS APP
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