Power Systems Efficiency of thermal power plant can be taken as product of efficiencies of all stages. turbine efficiency. generator efficiency. efficiency of thermal cycle. product of efficiencies of all stages. turbine efficiency. generator efficiency. efficiency of thermal cycle. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Half life is defined as none of above. the time required to spiliting of a heavy nucleus. the time required for one half of isotope to decay. the time required for full of atoms in a specimen disintegrate. none of above. the time required to spiliting of a heavy nucleus. the time required for one half of isotope to decay. the time required for full of atoms in a specimen disintegrate. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following represents the transmission or reflection coefficient of voltage Tv? (Zl = Surge impedance of load, Zs = Surge impedance of line) (Zl - Zs)/(Zs + Zl) (Zs - Zl)/(Zs + Zl) 2Zs/(Zs + Zl) 2Zl/(Zs + Zl) (Zl - Zs)/(Zs + Zl) (Zs - Zl)/(Zs + Zl) 2Zs/(Zs + Zl) 2Zl/(Zs + Zl) 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 3.75 pu 4.28 pu 7.25 pu 2.5 pu 3.75 pu 4.28 pu 7.25 pu 2.5 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Phase shift occurs due to which of the following components? capacitance inductance both 1 and 2 conductance capacitance inductance both 1 and 2 conductance ANSWER DOWNLOAD EXAMIANS APP
Power Systems The positive (Z1), negative (Z2) and zero sequence (Z0) impedances of a transmission line follows the relation any of the above (Z1 = Z2) > Z0 (Z1 = Z2) < Z0 Z1 = Z2 = Z0 any of the above (Z1 = Z2) > Z0 (Z1 = Z2) < Z0 Z1 = Z2 = Z0 ANSWER DOWNLOAD EXAMIANS APP
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