Electrical Machines The field divertor resistance for a DC series motor is of order of 100 Ω 50 Ω 10 Ω 0.1 Ω 100 Ω 50 Ω 10 Ω 0.1 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When an electric train is moving down a hill, the DC motor will operate as DC series motor. DC series generator. DC shunt motor. DC shunt generator. DC series motor. DC series generator. DC shunt motor. DC shunt generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a fault at the terminal of a synchronous generator, the fault current is maximum for a 3 - phase fault. 3 - phase to ground fault. line to line fault. line to ground fault. 3 - phase fault. 3 - phase to ground fault. line to line fault. line to ground fault. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The ventilating ducts in most of DC machine are longitudinal. radial. none of these. radial as well as longitudinal. longitudinal. radial. none of these. radial as well as longitudinal. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To achieve spark less commutation brushes of DC generator are rocked ahead so as to bring them in magnetic neutral axis. just behind the magnetic neutral axis. None of these just ahead of magnetic neutral axis. in magnetic neutral axis. just behind the magnetic neutral axis. None of these just ahead of magnetic neutral axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3- phase synchronous motor can operate over a wide range of power factors i.e. from lagging to leading power factor. This is achieved by varying the applied voltage. changing the load. changing the field excitation. varying the speed. varying the applied voltage. changing the load. changing the field excitation. varying the speed. ANSWER DOWNLOAD EXAMIANS APP
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