Power Systems Critical disruptive voltage is a voltage at which corona is just initiated both 1 and 2 corona is visible with blue or violet colour nether 1 nor 2 corona is just initiated both 1 and 2 corona is visible with blue or violet colour nether 1 nor 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of per unit system is/are No units for any quantity It has units for all quantities All of these Need of transformation ratio No units for any quantity It has units for all quantities All of these Need of transformation ratio ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is compensated with shunt capacitance Csh. If the uncompensated transmission line surge impedance is Zs, then find the new surge impedance Zn after shunt compensation? √(1 + Kcsh)/Zs Zs/√(1 + Kcsh) All of these Zs*√(1 + Kcsh) √(1 + Kcsh)/Zs Zs/√(1 + Kcsh) All of these Zs*√(1 + Kcsh) ANSWER DOWNLOAD EXAMIANS APP
Power Systems The specific speeds of Kaplan, Francis and Pelton turbines are in the increasing order. neither increasing nor decreasing order. None of these the decreasing order. the increasing order. neither increasing nor decreasing order. None of these the decreasing order. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The per unit impedance Z(pu) is given by ZΩ* (MVA)b/(KV)²b ZΩ* (MVA)b*100/(KV)²b ZΩ* (kVA)b/(KV)²b ZΩ* (MVA)b/((KV)²b *100) ZΩ* (MVA)b/(KV)²b ZΩ* (MVA)b*100/(KV)²b ZΩ* (kVA)b/(KV)²b ZΩ* (MVA)b/((KV)²b *100) ANSWER DOWNLOAD EXAMIANS APP
Power Systems Gas coolled reactor use heavy water as coolant as well as moderator. use coolant at pressure of 14-28 Kg/cm2 and at temperature of 700°-800° c. both B and C. use CO2. or helium as coolant and graphite the moderator. use heavy water as coolant as well as moderator. use coolant at pressure of 14-28 Kg/cm2 and at temperature of 700°-800° c. both B and C. use CO2. or helium as coolant and graphite the moderator. ANSWER DOWNLOAD EXAMIANS APP
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