DGVCL Exam Paper (12-06-2016) A certain transformer has 200 turns in the primary winding, 50 turns in the secondary winding and 120 volts applied to the primary. What is the voltage across the secondary? 480 Volts 120 Volts 30 Volts 60 Volts 480 Volts 120 Volts 30 Volts 60 Volts ANSWER EXPLANATION DOWNLOAD EXAMIANS APP For transformer, V2/V1 = N2/N1V2/120 = 50/200V2 = 30 V
DGVCL Exam Paper (12-06-2016) Core type transformers are popular in _____ None of these High voltage applications All of these Low voltage applications None of these High voltage applications All of these Low voltage applications ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) A circuit breaker is designed to protect an electrical circuit from damage caused by : Short circuit Over current All of these Over load Short circuit Over current All of these Over load ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) For a 66 kV line having span of 200 meters between towers the approximate sag will be 2 m. If the span is double the sag will be: 1 m 8 m 4 m 2 m 1 m 8 m 4 m 2 m ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) In fuel cell the _____ energy is converted into electrical energy. Chemical Heat Mechanical Sound Chemical Heat Mechanical Sound ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The main disadvantages of having poor power factors are: Poor voltage regulation High cost of station and distribution equipment High energy loss in conductor All of these Poor voltage regulation High cost of station and distribution equipment High energy loss in conductor All of these ANSWER DOWNLOAD EXAMIANS APP
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