Power Systems Gas coolled reactor use coolant at pressure of 14-28 Kg/cm2 and at temperature of 700°-800° c. use CO2. or helium as coolant and graphite the moderator. use heavy water as coolant as well as moderator. both B and C. use coolant at pressure of 14-28 Kg/cm2 and at temperature of 700°-800° c. use CO2. or helium as coolant and graphite the moderator. use heavy water as coolant as well as moderator. both B and C. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In which of the following configuration power transferability is higher? horizontal configuration same in both configuration triangular configuration None of these horizontal configuration same in both configuration triangular configuration None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems If in a line, resistance and reactance are found to be equal and regulation is zero, then load will have zero power factor 0.707 lagging power factor 0.707 leading power factor unity power factor zero power factor 0.707 lagging power factor 0.707 leading power factor unity power factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems A cable has inductance of 0.22 mH per km and capacitance of 0.202 µF per km. The surge impedance of the cable is 28 Ω 52 Ω 40 Ω 33 Ω 28 Ω 52 Ω 40 Ω 33 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 1- phase transmission line operating at 30 kV has radius of 1 cm and distance between conductors is 0.5 m. Assume m = δ =1, g = 21 kV/cm and frequency f = 50 Hz. Find the critical disruptive voltage? 34.64 kV/phase 82.15 kV/phase 41.075 kV/phase 17.32 kV/phase 34.64 kV/phase 82.15 kV/phase 41.075 kV/phase 17.32 kV/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems The per unit impedance of a circuit element is 0.30. If the base kV and base MVA are halved, then the new value of the per unit impedance of the circuit element will be 0.30 0.0060 0.0030 0.60 0.30 0.0060 0.0030 0.60 ANSWER DOWNLOAD EXAMIANS APP
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