Transformers The core type transformer is generally suitable for ______ High voltage and small output High voltage and high output None of the listed here Low voltage and high output High voltage and small output High voltage and high output None of the listed here Low voltage and high output ANSWER DOWNLOAD EXAMIANS APP
Transformers When load on a transformer is decreased, ______loss is decreased Hysteresis Copper Friction Eddy current Hysteresis Copper Friction Eddy current ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the coefficient of coupling for a transformer in which 4% of the total flux generated in the primary does not pass through the secondary? 0.96 4 0.4 9.6 0.96 4 0.4 9.6 ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is the main advantage of an auto-transformer over a two winding transformer? Eddy losses are totally eliminated Hysteresis losses are reduced Copper losses are negligible Saving in winding material Eddy losses are totally eliminated Hysteresis losses are reduced Copper losses are negligible Saving in winding material ANSWER DOWNLOAD EXAMIANS APP
Transformers Material used for construction of transformer core is usually Copper Wood Aluminium Silicon steel Copper Wood Aluminium Silicon steel ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural air cooling is generally restricted for transformers up to 1.5 MVA 15 MVA 5 MVA 50 MVA 1.5 MVA 15 MVA 5 MVA 50 MVA ANSWER DOWNLOAD EXAMIANS APP
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