Electrical Machines The power flow of a dc motor, with respect to a DC generator is modified. increased. reversed. none of these. modified. increased. reversed. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction depends on which of the following? magnitude of load current None of these power factor of load both 1 and 2 magnitude of load current None of these power factor of load both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a 3 - Φ induction motor can be reversed by transposing any two leads from supply. transposing all the three leads from the supply. transposing any two leads from slip rings. disconnecting any one phase. transposing any two leads from supply. transposing all the three leads from the supply. transposing any two leads from slip rings. disconnecting any one phase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous machine, if the field flux axis is ahead of the armature field axis in the direction of rotation, the machine operating is synchronous generator. asynchronous generator. asynchronous motor. synchronous motor. synchronous generator. asynchronous generator. asynchronous motor. synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the above problem, find the induced voltage of an alternator of it is to deliver a load of 100 A at power factor of 0.8 lagging with terminal voltage of 200 V. 222 V. 230 V. 220 V. 225 V. 222 V. 230 V. 220 V. 225 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two DC generators having equal open-circuit emfs but slight different load characteristics are operating in parallel, then None of these the machine with more drooping characteristic will supply less load. the machine will share load equally. the machine with more drooping characteristic will supply more load. None of these the machine with more drooping characteristic will supply less load. the machine will share load equally. the machine with more drooping characteristic will supply more load. ANSWER DOWNLOAD EXAMIANS APP
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