DGVCL Exam Paper (12-06-2016) In a transformer the energy is conveyed from primary to secondary By the flux Through air Through cooling coil None of these By the flux Through air Through cooling coil None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP function of transfomer is that transfer electrical energy from primary cicuit to secondary through magnetic cicuit by mutual induction
DGVCL Exam Paper (12-06-2016) The friction losses in Real Transformers are : 0.05 0.25 0.5 0 0.05 0.25 0.5 0 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP As there is no rotating part in transformer, there is no friction and windage loss
DGVCL Exam Paper (12-06-2016) The following is correct : P = VxI All of these P = V²/R P = I²xR P = VxI All of these P = V²/R P = I²xR ANSWER EXPLANATION DOWNLOAD EXAMIANS APP True for DC Circuits.For single pahse ac P = V I CosØ
DGVCL Exam Paper (12-06-2016) Wave trap is used to trap waves of: All of these Power frequencies Higher frequencies entering generator or transformer units None of these All of these Power frequencies Higher frequencies entering generator or transformer units None of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Which of the following circuit breakers has high reliability & minimum maintenance? Sulphur hexafluoride CB Vacuum CB Bulk oil type CB Air blast CB Sulphur hexafluoride CB Vacuum CB Bulk oil type CB Air blast CB ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) As per Electricity Act, _____ means any line which is used for carrying electricity for any purpose. Transmission line All of these None of these Electric line Transmission line All of these None of these Electric line ANSWER DOWNLOAD EXAMIANS APP
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