Power Systems The maximum efficiency of modern coal fired steam steam raising thermal power plants is restricted to about 0.35( a low value), mainly because of high energy loss in condenser low alternator efficiency low steam turbine mechanical efficiency high energy loss in boilers high energy loss in condenser low alternator efficiency low steam turbine mechanical efficiency high energy loss in boilers ANSWER DOWNLOAD EXAMIANS APP
Power Systems An hydro-graph indicates the average run off during the period. All of these the discharge at any time during the period under consideration. the maximum and minimum run off during the period. the average run off during the period. All of these the discharge at any time during the period under consideration. the maximum and minimum run off during the period. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum power transfer in a transmission line can be obtained by None of these reducing reactance increasing voltage level either 1 or 2 None of these reducing reactance increasing voltage level either 1 or 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The skin effect shows that current density is more at the surface of the condutor current density is more at the centre of the condutor current density is lower at the surface of the condutor the distribution of AC current is uniform through the cross section of the conductor current density is more at the surface of the condutor current density is more at the centre of the condutor current density is lower at the surface of the condutor the distribution of AC current is uniform through the cross section of the conductor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Operator "a" rotates a vector anti clock wise direction clock wise direction either 1 or 2 nether 1 nor 2 anti clock wise direction clock wise direction either 1 or 2 nether 1 nor 2 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 2.5 pu 4.28 pu 7.25 pu 3.75 pu 2.5 pu 4.28 pu 7.25 pu 3.75 pu ANSWER DOWNLOAD EXAMIANS APP
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