Electrical Machines The noise resulting from vibrations of lamination set by magnetic forces, is termed as zoom. boo. hum. magnetostriction. zoom. boo. hum. magnetostriction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the mechanical power is developed by a DC motor maximum Back emf is equal to half of applied voltage. Back emf is equal. None of above. back emf is equal to applied voltage. Back emf is equal to half of applied voltage. Back emf is equal. None of above. back emf is equal to applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, which component plays the vital role to produce the direct current? Commutator. Yoke. Armature. Brush. Commutator. Yoke. Armature. Brush. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The coil spam must be exactly equal to people pitch. none of above. may or may not be exactly equal to people pitch. can never be equal to pole pitch. must be exactly equal to people pitch. none of above. may or may not be exactly equal to people pitch. can never be equal to pole pitch. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On switching a DC motor to DC supply mains, it is found to rotate in the direction opposite to that for which it is designed. The DC motor is Series shunt. Differentical compound. have an equal number of electrons and protons. Cummulative compound. Series shunt. Differentical compound. have an equal number of electrons and protons. Cummulative compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous generator with constant steam input supplies power to an infinite bus at a lagging power factor. If the excitation is increased power angle increase and power factor decrease both power angle and power factor decrease power angle decrease and power factor increase both power angle and power factor increase power angle increase and power factor decrease both power angle and power factor decrease power angle decrease and power factor increase both power angle and power factor increase ANSWER DOWNLOAD EXAMIANS APP
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