Power Systems Which of the following materials is/are used as moderators? All of these graphite heavy water beryllium All of these graphite heavy water beryllium ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 200 MVA alternator operated at no load at frequency of 50 Hz, it has inertia constant of 5 MWsec/MVA and governing system has a time delay of 0.6 sec. If the load of 50 MW is suddenly applied then find the frequency deviation during this time? 0.76 Hz 0.85 Hz -0.85 Hz -0.76 Hz 0.76 Hz 0.85 Hz -0.85 Hz -0.76 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems Characteristics of arc quenching medium is/are High dielectric strength All of these High thermal conductivity Non flammable High dielectric strength All of these High thermal conductivity Non flammable ANSWER DOWNLOAD EXAMIANS APP
Power Systems Gross head of an hydroelectric power station is the height of water level in the river where the storage 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 tail race is provided. all of above. the height of water level in the river where the storage 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 tail race is provided. all of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The most commonly used material for insulators of overhead lines is PVC porcelain glass mica PVC porcelain glass mica ANSWER DOWNLOAD EXAMIANS APP
Power Systems Counter poise is used for reduce losses proper discharging of lighting surges more surge impedance less surge impedance reduce losses proper discharging of lighting surges more surge impedance less surge impedance ANSWER DOWNLOAD EXAMIANS APP
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