Power Systems To prevent maloperation of deferentially connected relay while energizing a transformer, the relay restraining coil is biased with 3rd harmonic current. 7th harmonic current. 2nd harmonic current. 5th harmonic current. 3rd harmonic current. 7th harmonic current. 2nd harmonic current. 5th harmonic current. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a regenerative cycle, feed water is heated by exhaust gas. heaters. all of above. drained steam from turbine. exhaust gas. heaters. all of above. drained steam from turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An impulse turbine always operates submerged. is most suited for low head and high discharge power plants. makes use of a draft tube. operates by initial complete conversion to kinetic energy. always operates submerged. is most suited for low head and high discharge power plants. makes use of a draft tube. operates by initial complete conversion to kinetic energy. 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? 32 kV 40 kV 45 kV 36 kV 32 kV 40 kV 45 kV 36 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems For harnessing low variable water heads, the suitable hydraulic turbine with reaction and adjustable vanes runners is Impeller Pelton Francis Kaplan Impeller Pelton Francis Kaplan ANSWER DOWNLOAD EXAMIANS APP
Power Systems In boiler water reactor (BWR) all of above. enriched uranium is used as fuel. there is danger of radioactive contamination of steam. the feed water acts both coolant and a moderator. all of above. enriched uranium is used as fuel. there is danger of radioactive contamination of steam. the feed water acts both coolant and a moderator. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS