Electrical Machines The condition for maximum running torque is unity zero 0.707 lagging 0.5 lagging R = S.X unity zero 0.707 lagging 0.5 lagging R = S.X ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field of a dc shunt motor gets opened while the motor is running, then the armature current will drop armature will oscillate about original speed as the mean speed motor will become slow. motor will attain dangerously high speed armature current will drop armature will oscillate about original speed as the mean speed motor will become slow. motor will attain dangerously high speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case the conditions for maximum power for DC motor are established, the efficiency of the motor will be Less than 50 % Any where between 75 % and 90 %. Around 100 %. Around 90 % Less than 50 % Any where between 75 % and 90 %. Around 100 %. Around 90 % ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slot wedges in a dc machine is made up of fibre. mild steel. cast iron. silicon steel. fibre. mild steel. cast iron. silicon steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is not a part of transformer? Radiator. Conservator tank. Commutator. Tap changer. Radiator. Conservator tank. Commutator. Tap changer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Number of slip rings in 3-phase synchronous motor will be 0 1 3 or 4 2 0 1 3 or 4 2 ANSWER DOWNLOAD EXAMIANS APP
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