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 Consider a separately excited DC motor. If the field current is increased while the armature terminal voltage is held constant, then speed of the motor will increase. none of these. remains same. Decrease.d increase. none of these. remains same. Decrease.d ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, which component plays the vital role to produce the direct current? Brush. Armature. Yoke. Commutator. Brush. Armature. Yoke. Commutator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor electromagnetic power varies inversely as applied voltage directly as square of applied voltage None of these directly as applied voltage inversely as applied voltage directly as square of applied voltage None of these directly as applied voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Example of double excited machine is Synchronous motor. None of these DC Shunt Motor Both are correct. Synchronous motor. None of these DC Shunt Motor Both are correct. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In applied voltage is reduced in a dc shunt motor None of these. Full load current. Full load torque. Full load speed. None of these. Full load current. Full load torque. Full load speed. ANSWER DOWNLOAD EXAMIANS APP
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