Electrical Machines In travelling cranes for swing action which motor is preferred? AC slip ring IM. Capacitor type induction motors. Reluctance motor. DC series motor. AC slip ring IM. Capacitor type induction motors. Reluctance motor. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Fufuraldehyde analysis is done to determine the condition of paper insulation in transformer. condition of lamination on CRGO steel sheet. condition of oil in transformer. condition of cork gaskets used in transformer. condition of paper insulation in transformer. condition of lamination on CRGO steel sheet. condition of oil in transformer. condition of cork gaskets used in transformer. 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 What is the speed of stator rotating magnetic field with respect to rotor rotating magnetic field? Zero None of these Slip speed Synchronous speed Zero None of these Slip speed Synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors. Calculate the back emf produced when it is running at a speed of 1500 rpm. 220 volt. 440 volt. 240 volt. 230 volt. 220 volt. 440 volt. 240 volt. 230 volt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of a conductively compensated DC series motor, the compensating winding is provided As a separate unit. In series with the armature winding. In parallel with the field winding. In parallel with the armature winding. As a separate unit. In series with the armature winding. In parallel with the field winding. In parallel with the armature winding. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS