Transformers The transformer that should never the secondary open circuited when primary is energised is _______ Auto transformer Voltage transformer Current transformer Power transformer Auto transformer Voltage transformer Current transformer Power transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum efficiency of a distribution transformer is at full load at 80% full load at 50% full load at no load at full load at 80% full load at 50% full load at no load ANSWER DOWNLOAD EXAMIANS APP
Transformers Losses which occur in rotating electric machines and do not occur in trans formers are friction and windage losses hysteresis and eddy current losses magnetic losses copper losses friction and windage losses hysteresis and eddy current losses magnetic losses copper losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The eddy current loss in a transformer is directly proportional to _______. The supply frequency The flux density in the core Thickness of core lamination Square of thickness of core lamination The supply frequency The flux density in the core Thickness of core lamination Square of thickness of core lamination ANSWER DOWNLOAD EXAMIANS APP
Transformers Which type of winding is used in 3phase shell-type transformer? Sandwich type Rectangular type Circular type Cylindrical type Sandwich type Rectangular type Circular type Cylindrical type ANSWER DOWNLOAD EXAMIANS APP
Transformers The core type transformer is generally suitable for ______ High voltage and high output Low voltage and high output High voltage and small output None of the listed here High voltage and high output Low voltage and high output High voltage and small output None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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