Power Systems Due to proximity effect, the increase in conductor resistance is not negligible in underground cable overhead transmission lines communication lines All of these underground cable overhead transmission lines communication lines All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which one of the following relays has the capability of anticipating the possible major fault in a transformer? Over fluxing relay Over current relay Differential relay Buchholz relay Over fluxing relay Over current relay Differential relay Buchholz relay ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydraulic turbine having rated speed of 250 rpm is connected to a synchronous generator. In order to produce power at 50 Hz, the numbers of pole are required in the generator 6. 12. 16. 24. 6. 12. 16. 24. ANSWER DOWNLOAD EXAMIANS APP
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 25060 J. 23060 J. 20160 J. 20060 J. 25060 J. 23060 J. 20160 J. 20060 J. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The modern trend in electric power generation none of above. to have large size thermal plant located near coal fields. to have large number of small size thermal plants located at different places. to have large size thermal plants near load centre. none of above. to have large size thermal plant located near coal fields. to have large number of small size thermal plants located at different places. to have large size thermal plants near load centre. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two identical synchronous machines having same inertia constant are connected in parallel and swinging together. The effective inertia constant is 4 MJ/MVA. Then each machine has inertia constant of 4 MJ/MVA 8 MJ/MVA 16 MJ/MVA 2 MJ/MVA 4 MJ/MVA 8 MJ/MVA 16 MJ/MVA 2 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
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