Electrical Machines As compared to an induction motor, the air gap in a DC motor is between 50% and 90%. less than 50%. more. same. between 50% and 90%. less than 50%. more. same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer which of the following losses are zero? Copper loss Iron loss All of these Rotational loss Copper loss Iron loss All of these Rotational loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine yoke offers flux path completion produce working flux both A and B mechanical protection to the machine flux path completion produce working flux both A and B mechanical protection to the machine ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On what factors the speed of dc motor depends? Field flux. Applied voltage. Armature current Ia. All of these. Field flux. Applied voltage. Armature current Ia. All of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor has more stability None of these salient pole motor cylindrical motor both motors has same stability None of these salient pole motor cylindrical motor both motors has same stability ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To achieve spark less commutation brushes of DC generator are rocked ahead so as to bring them just ahead of magnetic neutral axis. just behind the magnetic neutral axis. None of these in magnetic neutral axis. just ahead of magnetic neutral axis. just behind the magnetic neutral axis. None of these in magnetic neutral axis. ANSWER DOWNLOAD EXAMIANS APP
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