Power Systems Storage requirement can be determined from both B and C. hydro-graph. mass Curve. flow duration curve. both B and C. hydro-graph. mass Curve. flow duration curve. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum efficiency of modern coal fired steam raising thermal power plants is restricted to about 035 (a low value), mainly because of low steam turbine mechanical efficiency. high energy loss in boiler. low alternative efficiency. high energy loss from turbine exhaust to condenser. low steam turbine mechanical efficiency. high energy loss in boiler. low alternative efficiency. high energy loss from turbine exhaust to condenser. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An unloaded generator with a pre-fault voltage 1 pu has the following sequence impedance: Z0 = j 0.15 pu, Z1 = Z2 = j 0.25 pu The neutral is grounded with a reactance of 0.05 pu. The fault current in pu for single line to ground fault is 4.28 pu 3.75 pu 7.25 pu 2.5 pu 4.28 pu 3.75 pu 7.25 pu 2.5 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is not base load power plant Nuclear. Run water. Pump storage. Diesel. Nuclear. Run water. Pump storage. Diesel. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected? 88.2% 11.8% 85% 15% 88.2% 11.8% 85% 15% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the methods of improving transient stability? Fast acting governing system Dynamic breaking Fast acting excitation control All of these Fast acting governing system Dynamic breaking Fast acting excitation control All of these ANSWER DOWNLOAD EXAMIANS APP
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