Power Systems Which of the following statements is true? Corona loss increases with increase in conductor size and increase in supply frequency increase in conductor size and decrease in supply frequency decrease in conductor size and decrease in supply frequency decrease in conductor size and increase in supply frequency increase in conductor size and increase in supply frequency increase in conductor size and decrease in supply frequency decrease in conductor size and decrease in supply frequency decrease in conductor size and increase in supply frequency ANSWER DOWNLOAD EXAMIANS APP
Power Systems Radio interference occur in telecommunication line due to electro static induction electro magnetic induction nether 1 nor 2 both 1 and 2 electro static induction electro magnetic induction nether 1 nor 2 both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following decides the insulation level of 400 kV, EHV line? radio interference skin effect lighting voltage switching over voltage radio interference skin effect lighting voltage switching over voltage ANSWER DOWNLOAD EXAMIANS APP
Power Systems The Gauss Seidel load flow method has following disadvantages. Which of the following statement is wrong? Slow convergence A good initial guess for voltages is essential for convergence Choice of slack bus affects the convergence Unreliable convergence Slow convergence A good initial guess for voltages is essential for convergence Choice of slack bus affects the convergence Unreliable convergence ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠°90 Ω, C = 0.5*10^-6∠90° ℧. Find Charging current under no load? 0.512∠90° A/phase 0.144∠90° A/phase 1.144∠90° A/phase 0.344∠90° A/phase 0.512∠90° A/phase 0.144∠90° A/phase 1.144∠90° A/phase 0.344∠90° A/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where is the draft tube of a hydroelectric plant that is an airtight pipe located At the beginning of the penstock. Near the surge tank. In between the penstock and runner. In between the runner exhaust and the tail race. At the beginning of the penstock. Near the surge tank. In between the penstock and runner. In between the runner exhaust and the tail race. ANSWER DOWNLOAD EXAMIANS APP
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