Electrical Machines DC series motor is best suited for electric traction as It runs at very high speed at light load. It is cheaper in cost. It consume less power. It develops high starting torque. It runs at very high speed at light load. It is cheaper in cost. It consume less power. It develops high starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The use of higher flux density in the transformer design None of these increases the weigh per KVA has no relation with the weight of transformer reduces the weigh per KVA None of these increases the weigh per KVA has no relation with the weight of transformer reduces the weigh per KVA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When an electric train is moving down a hill, the DC motor will operate as DC shunt generator. DC shunt motor. DC series motor. DC series generator. DC shunt generator. DC shunt motor. DC series motor. DC series generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under which of the following conditions hunting of synchronous motor is likely to occur ? Small and constant load. Over-excitation. Periodic variation of load. Over-loading for long period. Small and constant load. Over-excitation. Periodic variation of load. Over-loading for long period. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A motor operates in stable region at which of the following slip? both 1 and 2 unity slip low slip region high slip region both 1 and 2 unity slip low slip region high slip region ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The voltage regulation of a DC generator at full load being zero implies that the generator is shunt connected. series connected. deferentially compounded. cumulatively compounded. shunt connected. series connected. deferentially compounded. cumulatively compounded. ANSWER DOWNLOAD EXAMIANS APP
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