Transformers Which of the following property is not necessarily desirable in the material for transformer core? Low hysteresis loss High thermal conductivity Mechanical strength High permeability Low hysteresis loss High thermal conductivity Mechanical strength High permeability ANSWER DOWNLOAD EXAMIANS APP
Transformers The approximate efficiency of a large transformer is 95% 65% 80% 50% 95% 65% 80% 50% ANSWER DOWNLOAD EXAMIANS APP
Transformers The winding of the transformer with greater number of turns will be _____ Either high or low voltage winding None of the listed here High voltage winding Low voltage winding Either high or low voltage winding None of the listed here High voltage winding Low voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers Which motor is preferred for use in mines where explosive gases exist? Synchronous motor Shunt motor Air motor Induction motor Synchronous motor Shunt motor Air motor Induction motor ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a transformer has 110 V ac across it. What is the secondary voltage if the turns ratio is 8? 880 V 8,800 V 88 V 8.8 V 880 V 8,800 V 88 V 8.8 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is less than one None of these approximately equal to one great than one less than one None of these approximately equal to one great than one ANSWER DOWNLOAD EXAMIANS APP
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