Power Systems Mechanical energy is supplied to a DC generator at the rate of 4200 J / S. The generator delivers 32.2 Amp at 120 V. How much energy is cost per minute of operation 20160 J. 23060 J. 25060 J. 20060 J. 20160 J. 23060 J. 25060 J. 20060 J. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Reflector of a nuclear reactor are made up of cast iron. beryllium. steel. boron. cast iron. beryllium. steel. boron. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The line current IR flowing into balanced delta connected load is - j5 - 3 A. If the phase sequence is RYB the phase current IYB is 20. 5. 55.1. 10. 20. 5. 55.1. 10. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A three phase, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 secs. The symmetrical breaking current is 35 kA. 45 kA. 50 kA. 55 kA. 35 kA. 45 kA. 50 kA. 55 kA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected? 88.2% 15% 85% 11.8% 88.2% 15% 85% 11.8% ANSWER DOWNLOAD EXAMIANS APP
Power Systems The skin effect of conductor will increase when All of these frequency decrease diameter decrease resistivity decrease All of these frequency decrease diameter decrease resistivity decrease ANSWER DOWNLOAD EXAMIANS APP
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