Power Systems Which of the following materials is/are used as moderators? All of these beryllium graphite heavy water All of these beryllium graphite heavy water ANSWER DOWNLOAD EXAMIANS APP
Power Systems Earthing switch is used for measuring of safety voltage All of these discharging residual energies protection of equipment from ground faults measuring of safety voltage All of these discharging residual energies protection of equipment from ground faults ANSWER DOWNLOAD EXAMIANS APP
Power Systems If a 500 MVA, 11 kV 3-phase generator at 50 Hz feeds through a transfer impedance of (0+j0.605) Ω/phase, an infinite voltage also at 11 kV, then the maximum steady state power transfer on the base of 500 MVA and 11 kV is 0.5 pu 0.8 pu 1 pu 0.4 pu 0.5 pu 0.8 pu 1 pu 0.4 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems For n bus power system size of Y bus matrix is (n-1)×(n-1) (n-1)×(n-2) n×n (n-2)×(n-2) (n-1)×(n-1) (n-1)×(n-2) n×n (n-2)×(n-2) ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of per unit system is/are All of these Need of transformation ratio It has units for all quantities No units for any quantity All of these Need of transformation ratio It has units for all quantities No units for any quantity ANSWER DOWNLOAD EXAMIANS APP
Power Systems The load current in short circuit calculations are neglected because short circuit currents are greatly out of phase with load currents nether 1 nor 2 short circuit currents are much larger than load currents both 1 and 2 short circuit currents are greatly out of phase with load currents nether 1 nor 2 short circuit currents are much larger than load currents both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
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