Transformers A transformer is an efficient device because it _______ Uses capacitive coupling Uses electric coupling Is a static device Uses inductive coupling Uses capacitive coupling Uses electric coupling Is a static device Uses inductive coupling ANSWER DOWNLOAD EXAMIANS APP
Transformers The core type transformer provides _______ None of the listed here Lesser average length per turn Shorter magnetic path Much longer magnetic path None of the listed here Lesser average length per turn Shorter magnetic path Much longer magnetic path ANSWER DOWNLOAD EXAMIANS APP
Transformers In case of 3-phase induction motors, plugging means starting the motor on load which is more than the rated load interchanging two supply phases for quick stopping pulling the motor directly on line without a starter locking of rotor due to harmonics starting the motor on load which is more than the rated load interchanging two supply phases for quick stopping pulling the motor directly on line without a starter locking of rotor due to harmonics ANSWER DOWNLOAD EXAMIANS APP
Transformers A common method of cooling a power transformer is natural air cooling air blast cooling oil cooling Any of these natural air cooling air blast cooling oil cooling Any of these ANSWER DOWNLOAD EXAMIANS APP
Transformers When load on a transformer is decreased, ______loss is decreased Friction Eddy current Copper Hysteresis Friction Eddy current Copper Hysteresis ANSWER DOWNLOAD EXAMIANS APP
Transformers An open-circuit test on a transformer is conducted primarily to measure insulation resistance core loss total loss copper loss insulation resistance core loss total loss copper loss ANSWER DOWNLOAD EXAMIANS APP
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