Electrical Machines A shunt generator is running at 1000 rpm. If flux is reduced by half, then what is the new speed? 0. 1000. 2000. 500. 0. 1000. 2000. 500. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A crusher is equipped with DC shunt motor. Reluctance motor. Synchronous motor. Slip ring induction motor. DC shunt motor. Reluctance motor. Synchronous motor. Slip ring induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under which of the following conditions is a dc motor provided with compensating winding used ? 1. Wide range of speed control above normal 2. Wide range of steady load variation with no speed control 3.Wide range of rapid variation in load Select the correct answer using the codes given below : Codes : 1, 2 and 3 1 and 2 1 and 3 2 and 3 1, 2 and 3 1 and 2 1 and 3 2 and 3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machine armature windings are placed on rotor because of the necessity for electromechanical energy conversion. commutation. development of torque. generation of voltage. electromechanical energy conversion. commutation. development of torque. generation of voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the field-flux axis and armature-mmf axis are respectively along direct axis and indirect axis quadrature axis and direct axis direct axis and interpolar axis quadrature axis and interpolar axis direct axis and indirect axis quadrature axis and direct axis direct axis and interpolar axis quadrature axis and interpolar axis ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An ideal synchronous motor has no starting torque because relative velocity between stator and rotor mmf’s is not zero. rotor is made up of salient poles. relative velocity between the stator and rotor mmf’s is zero. rotor winding is highly reactive. relative velocity between stator and rotor mmf’s is not zero. rotor is made up of salient poles. relative velocity between the stator and rotor mmf’s is zero. rotor winding is highly reactive. ANSWER DOWNLOAD EXAMIANS APP
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