Power Systems The specific speed ( NS ) of turbine is given by N√( P ) / H1.25. P√( N ) / H3/2. N√( P ) / H2/3. none of these. N√( P ) / H1.25. P√( N ) / H3/2. N√( P ) / H2/3. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading of a 3-phase, 400 kV transmission line is 400 Ω. The surge impedance loading is 800 MW 200 MW 1600 MW 400 MW 800 MW 200 MW 1600 MW 400 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mercury is choice with steam in binary vapor cycle because higher critical temperature and pressure. all of above. relative low vaporization pressure. higher saturation temperature than other fluids. higher critical temperature and pressure. all of above. relative low vaporization pressure. higher saturation temperature than other fluids. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The maximum efficiency of modern coal fired steam steam raising thermal power plants is restricted to about 0.35( a low value), mainly because of high energy loss in condenser low steam turbine mechanical efficiency low alternator efficiency high energy loss in boilers high energy loss in condenser low steam turbine mechanical efficiency low alternator efficiency high energy loss in boilers ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a short circuit test circuit breaker, time to reach the peak re-striking voltage 60 microsecond & the peak re-striking voltage 120 kV. Determine average RRRV (Rate of rise re-striking voltage)? 1 × 106 kV / sec. 3 × 106 kV / sec. 2 × 106 kV / sec. 3.5 × 106 kV / sec. 1 × 106 kV / sec. 3 × 106 kV / sec. 2 × 106 kV / sec. 3.5 × 106 kV / sec. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Main bus bar protection scheme is /are both fault bus and differential protection. fault bus protection. differential protection. none of these. both fault bus and differential protection. fault bus protection. differential protection. none of these. ANSWER DOWNLOAD EXAMIANS APP
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