Power Systems What type of back up protection is used for alternators? Mho relay. Buchholz relay. IDMT relay. Impedance relay. Mho relay. Buchholz relay. IDMT relay. Impedance relay. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Lightning arresters are made up of which material? silver copper any of the above silicon oxide silver copper any of the above silicon oxide ANSWER DOWNLOAD EXAMIANS APP
Power Systems A Pelton wheel turbine having a rated speed of 300 rpm is connected to an alternator to produce power at 50 Hz. The number of poles required in the alternator is 8 20 10 4 8 20 10 4 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The essential requirement(s) for power plants to be operated as peak load plants are Capability of quick starts. Quick response to load variation. Low capital cost. All of these Capability of quick starts. Quick response to load variation. Low capital cost. All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has self and mutual impedances are 0.8 and 0 pu respectively. Find the positive, negative and zero sequence impedances respectively? 0.6, 0.8 and 1.2 pu 0.6, 0.6 and 0.6 pu 0.8, 0.8 and 0.8 pu 0.6, 0.6 and 1.2 pu 0.6, 0.8 and 1.2 pu 0.6, 0.6 and 0.6 pu 0.8, 0.8 and 0.8 pu 0.6, 0.6 and 1.2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Efficiency of thermal power plant can be taken as generator efficiency. product of efficiencies of all stages. efficiency of thermal cycle. turbine efficiency. generator efficiency. product of efficiencies of all stages. efficiency of thermal cycle. turbine efficiency. ANSWER DOWNLOAD EXAMIANS APP
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