Power Systems
Pump storage schemes are used to improve

 the power factor.
 the load factor.
  the plant capacity factor as well as the load factor of the power system.
 the diversity factor.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
The value of off diagonal elements is

 sum of admittances connected at bus i
 sum of admittances connected at bus j
 which is connected between bus i and bus j with positive sign
 which is connected between bus i and bus j with negative sign

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
Per unit of any quantity is defined as

 actual value of quantity /base value of quantity in different units
 actual value of quantity /base value of quantity in same units
 base value of quantity /actual value of quantity in different units
 base value of quantity /actual value of quantity in same units

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
Consider a three phase, 50 Hz, 11 kV distribution system. Each of the conductors is suspended by an insulator string having two identical porcelain insulators. The self capacitance of the insulators is 5 times the shunt capacitance between the link and ground. Find the voltage across the two insulators V1 and V2? (V1 = Voltage of disc nearest to the conductor)

 V1 = 6 kV and V2 = 5 kV
 V1 = 3.46 kV and V2 = 2.89 kV
 V1 = 2.89 kV and V2 = 3.46 kV
 V1 = 5 kV and V2 = 6 kV

ANSWER DOWNLOAD EXAMIANS APP