Electrical Machines Transformer action requires a alternating electric flux. alternating magnetic lux. constant magnetic flux. increasing magnetic flux. alternating electric flux. alternating magnetic lux. constant magnetic flux. increasing magnetic flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a specific open-circuit voltage of a DC generator, the short-circuit electric current will be maximum when it is shunt connected. separately excited. differentially compounded. cumulatively compounded. shunt connected. separately excited. differentially compounded. cumulatively compounded. 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, 3, 5 2, 4, 5 1 , 3, 5 1, 4,5 2, 3, 5 2, 4, 5 1 , 3, 5 1, 4,5 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a DC compound motor can be reversed by interchanging armature or field connections. shunt field connections. series field connections. armature connections. armature or field connections. shunt field connections. series field connections. armature connections. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction in a DC machine is in direct opposition to the main poles. makes an angle with the main pole axis which is load dependent. makes an angle of 90° with the main pole axis. is in the same direction as the main poles. is in direct opposition to the main poles. makes an angle with the main pole axis which is load dependent. makes an angle of 90° with the main pole axis. is in the same direction as the main poles. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In alternator, the rotary part is armature. none of these. magnetic field poles. core. armature. none of these. magnetic field poles. core. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS