Power Systems A hydraulic turbine having rated speed of 250 rpm is connected to a synchronous generator. In order to produce power at 50 Hz, the numbers of pole are required in the generator 6. 24. 12. 16. 6. 24. 12. 16. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 1-phase transmission line has an impedance (4 + 3j ) Ω. Find the power factor of the load for zero voltage regulation? 0.8 lag 0.6 lead 0.8 lead 0.6 lag 0.8 lag 0.6 lead 0.8 lead 0.6 lag ANSWER DOWNLOAD EXAMIANS APP
Power Systems The skin effect shows that current density is more at the surface of the condutor current density is lower at the surface of the condutor the distribution of AC current is uniform through the cross section of the conductor current density is more at the centre of the condutor current density is more at the surface of the condutor current density is lower at the surface of the condutor the distribution of AC current is uniform through the cross section of the conductor current density is more at the centre of the condutor ANSWER DOWNLOAD EXAMIANS APP
Power Systems For harnessing low variable water heads, the suitable hydraulic turbine with reaction and adjustable vanes runners is Francis Kaplan Pelton Impeller Francis Kaplan Pelton Impeller ANSWER DOWNLOAD EXAMIANS APP
Power Systems ACSR means all conductor steel reinforced Aluminium core steel reinforced Aluminium conductor steel reinforced Aluminium copper steel reinforced all conductor steel reinforced Aluminium core steel reinforced Aluminium conductor steel reinforced Aluminium copper steel reinforced ANSWER DOWNLOAD EXAMIANS APP
Power Systems A coal fired steam power station working at a plant factor of 80% has one 500 MW generating unit. If the heat content of coal is 2 kWh/kg, the overall plant efficiency is 40% and a train load of coal is 2000 metric tons, then the number of trains required daily for the plant is 16 2 6 10 16 2 6 10 ANSWER DOWNLOAD EXAMIANS APP
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