Power Systems Which of the following statements is/are true? Corona is reduced by increasing the distance between the conductor increasing the radius of the conductor All of these decreasing the supply frequency increasing the distance between the conductor increasing the radius of the conductor All of these decreasing the supply frequency ANSWER DOWNLOAD EXAMIANS APP
Power Systems The corona loss on a particular system at 50 Hz is 1 kW/km per phase. What is the corona loss at 60 Hz in kW/km per phase? 1.25 0.89 1.13 1 1.25 0.89 1.13 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The specific speeds of Kaplan, Francis and Pelton turbines are in neither increasing nor decreasing order. None of these the decreasing order. the increasing order. neither increasing nor decreasing order. None of these the decreasing order. the increasing order. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For 66 kV lines the number of insulator discs of each 11 kV used are 3 12 5 6 3 12 5 6 ANSWER DOWNLOAD EXAMIANS APP
Power Systems To reduce the radio interference which line is/are transposed? either 1 or 2 None of these Power line Both power and telecommunication lines either 1 or 2 None of these Power line Both power and telecommunication lines ANSWER DOWNLOAD EXAMIANS APP
Power Systems The daily energy produced in thermal power station is 720 MWh at a load factor of 0.6. What is the maximum demand of the station? 720 MW 72 MW 30 MW 50 MW 720 MW 72 MW 30 MW 50 MW ANSWER DOWNLOAD EXAMIANS APP
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