Power Systems Gross head of an hydroelectric power station is 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. the difference of water level between the level in storage and tail race. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The main objectives of electrical power transmission is/are nether 1 nor 2 Transmission system must be more efficient with minimum line losses both 1 and 2 Voltage regulation of the transmission line must be zero or minimum nether 1 nor 2 Transmission system must be more efficient with minimum line losses both 1 and 2 Voltage regulation of the transmission line must be zero or minimum ANSWER DOWNLOAD EXAMIANS APP
Power Systems Transmission line parameters of the short transmission line are 1,Z,Y,1 1,Z,0,1 1,0,Y,1 Z,0,Y,1 1,Z,Y,1 1,Z,0,1 1,0,Y,1 Z,0,Y,1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string insulator has 4 units. The voltage across bottom most unit is 10 kV and its efficiency is 90%. Find the total operating phase voltage? 45 kV 36 kV 40 kV 32 kV 45 kV 36 kV 40 kV 32 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Lightning arresters are used to protect electrical equipment against direct strokes of lightning. power frequency of over voltages. over voltages due to indirect lightning stroke. over currents due to lightning stroke. direct strokes of lightning. power frequency of over voltages. over voltages due to indirect lightning stroke. over currents due to lightning stroke. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Ships are usually supplied power by Diesel engine. Hydraulic turbine. Steam accumulator. None of above. Diesel engine. Hydraulic turbine. Steam accumulator. None of above. ANSWER DOWNLOAD EXAMIANS APP
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