Electrical Machines Flux density under trailing pole tips in case of generator will decrease increase either increase or decrease None of these decrease increase either increase or decrease None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation of the synchronous generator fails, it acts as a/an induction motor. induction generator. synchronous generator. synchronous motor. induction motor. induction generator. synchronous generator. synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Swinburne's test is applicable to DC compound motor. DC Shunt motor. DC series motor. DC shunt and level Compound motor. DC compound motor. DC Shunt motor. DC series motor. DC shunt and level Compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines During hunting of a synchronous motor field excitation increases. damper bar develops torque. harmonic are developed in the armature circuit. negative phase sequence currents are generated. field excitation increases. damper bar develops torque. harmonic are developed in the armature circuit. negative phase sequence currents are generated. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a dc machine, 1. physically, the brush axis is along the direct axis 2. physically, the brush axis is along the interpolar axis 3. schematically, the brush axis is along the direct axis 4. schematically, the brush axis is along the quadrature axis 5. armaturemmf is directed along the brush axis From these, the correct statements are 2, 4, 5 1 , 3, 5 1, 4,5 2, 3, 5 2, 4, 5 1 , 3, 5 1, 4,5 2, 3, 5 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the applied voltage to a dc machine is 230 V, then the back emf, for maximum power developed, is 230 V 460 V 115 V 200 V 230 V 460 V 115 V 200 V ANSWER DOWNLOAD EXAMIANS APP