DGVCL Exam Paper (12-06-2016) Which of the following 3-phase connection of a transformer causes interference with the neighbouring communication lines: Star-Delta Star-Star Delta-Star Delta-Delta Star-Delta Star-Star Delta-Star Delta-Delta ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The voltage of transmission can be regulated by Use of tap changing transformers Switching in shunt capacitors at the receiving end during heavy loads Use of capacitors to neutralize the effect of series reactance Any of the above methods Use of tap changing transformers Switching in shunt capacitors at the receiving end during heavy loads Use of capacitors to neutralize the effect of series reactance Any of the above methods ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Wave trap is used to trap waves of: Higher frequencies entering generator or transformer units All of these None of these Power frequencies Higher frequencies entering generator or transformer units All of these None of these Power frequencies ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) A 17 inch personal computer uses approximately 150 watts in an hour. If you have same computer on for only 4 minutes (for checking e-mail) what would be the power consumption? 0.04 kW 0.1 kW 0.01 kW None of these 0.04 kW 0.1 kW 0.01 kW None of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The problematic pollutants in emission of coal based generating plants _____ CO SO₂ NOx All of these CO SO₂ NOx All of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) In a transformer the energy is conveyed from primary to secondary Through cooling coil By the flux None of these Through air Through cooling coil By the flux None of these Through air ANSWER EXPLANATION DOWNLOAD EXAMIANS APP function of transfomer is that transfer electrical energy from primary cicuit to secondary through magnetic cicuit by mutual induction
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