Power Systems Gross head of an hydroelectric power station is the difference of water level between the level in storage and tail race. the height of water level in the river where the storage is provided. all of above. the height of water level in the river where the tail race is provided. the difference of water level between the level in storage and tail race. the height of water level in the river where the storage is provided. all of above. the height of water level in the river where the tail race is provided. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The function of a surge tank is to produce surge in the pipeline. relieve water hammer pressure in the penstock. supply water at constant pressure. none of above. produce surge in the pipeline. relieve water hammer pressure in the penstock. supply water at constant pressure. none of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading of a transmission line can be increased by increasing its voltage level addition of lumped capacitance in series both 1 and 3 addition of lumped inductance in parallel increasing its voltage level addition of lumped capacitance in series both 1 and 3 addition of lumped inductance in parallel ANSWER DOWNLOAD EXAMIANS APP
Power Systems The advantage of hydro electric power station over thermal power station is hydro electric station can be constructed at the place where the energy is required hydro electric power station can supply the power throughout the year the operation cost of hydro electric power station is low the initial cost of hydro electric power station is low hydro electric station can be constructed at the place where the energy is required hydro electric power station can supply the power throughout the year the operation cost of hydro electric power station is low the initial cost of hydro electric power station is low ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relays are used in protection of medium transmission lines? Impedance relays Admittance relays Mho relays any of the above Impedance relays Admittance relays Mho relays any of the above ANSWER DOWNLOAD EXAMIANS APP
Power Systems In case of failure of prime mover of the generator, which type of relay is used? distance relays reverse power relay impedance relay offset mho relay distance relays reverse power relay impedance relay offset mho relay ANSWER DOWNLOAD EXAMIANS APP
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