Electrical Machines If in DC Shunt Motor the flux is reduced suddenly to zero, then the armature current will reduce. the motor will attain dangerously high speed. the speed of motor will be reduced. the motor will come to stop. the armature current will reduce. the motor will attain dangerously high speed. the speed of motor will be reduced. the motor will come to stop. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The torque speed characteristics of a AC servomotor is approximately linearised hyperbola any of the above parabola linearised hyperbola any of the above parabola ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Magnetic field of a DC generator is produced by what? Electromagnets. Both B and C. Permanent magnets. None of the options. Electromagnets. Both B and C. Permanent magnets. None of the options. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Why are capacitors used with large AC induction motor? Improve power factor. Improve voltage level. Improve power level. Improve current level. Improve power factor. Improve voltage level. Improve power level. Improve current level. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines stepped cores are used in transformers in order to reduce iron loss. volume of copper. volume of iron. reluctance of core. iron loss. volume of copper. volume of iron. reluctance of core. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Cogging of induction motor occurs at high voltage and when stator and rotor poles are not equal. low voltage and when stator and rotor poles are not equal. low voltage and when stator and rotor poles are equal. high voltage and when stator and rotor poles are equal. high voltage and when stator and rotor poles are not equal. low voltage and when stator and rotor poles are not equal. low voltage and when stator and rotor poles are equal. high voltage and when stator and rotor poles are equal. ANSWER DOWNLOAD EXAMIANS APP
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