Electrical Machines 3rd harmonics are eliminated in induction motor by using V connection. delta connection. zig - zag connection. star connection. V connection. delta connection. zig - zag connection. star connection. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When operating, two or more transformers in parallel, % impedance of these transformers should be inversely proportional to MVA rating of transformers. same. such that actual impedance of all transformers would be same. proportionate to MVA rating of transformers. inversely proportional to MVA rating of transformers. same. such that actual impedance of all transformers would be same. proportionate to MVA rating of transformers. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For power factor improvement the synchronous motor is to be lightly loaded and underecited heavily loaded and over excited lightly loaded and over excited heavily loaded and underexcited lightly loaded and underecited heavily loaded and over excited lightly loaded and over excited heavily loaded and underexcited ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature voltage control is considered suitable for a DC motor driven at constant torque. speed. power. current. torque. speed. power. current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, the residual magnetism is of the order of 20 %. 2.5 %. 15 %. 10 %. 20 %. 2.5 %. 15 %. 10 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following machine is invariably provided with forced ventilation? Hermetically sealed motor of refrigerator. Fractional horse power high speed motor. 50 MW generator in a power plant. Fractional horse power slow speed motor. Hermetically sealed motor of refrigerator. Fractional horse power high speed motor. 50 MW generator in a power plant. Fractional horse power slow speed motor. ANSWER DOWNLOAD EXAMIANS APP
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