Power Systems The arc voltage produced in an AC circuit breaker is always leading the arc current by 90°. in phase with the arc current. lagging the arc current by 90°. in phase opposition with the arc current. leading the arc current by 90°. in phase with the arc current. lagging the arc current by 90°. in phase opposition with the arc current. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Uses of diesel power stations emergency plants. peak load plant. standby plants. All of these emergency plants. peak load plant. standby plants. All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems In boiler water reactor (BWR) there is danger of radioactive contamination of steam. enriched uranium is used as fuel. the feed water acts both coolant and a moderator. all of above. there is danger of radioactive contamination of steam. enriched uranium is used as fuel. the feed water acts both coolant and a moderator. all of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading of a 3-phase, 400 kV transmission line is 400 Ω. The surge impedance loading is 1600 MW 800 MW 400 MW 200 MW 1600 MW 800 MW 400 MW 200 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 3-phase transmission line, each phase is supported by 3 insulated discs, maximum voltage of each disc is 20 kV. Find the operating voltage of the transmission line per phase if efficiency of string is 80.6%. 83.76 kV 52.84 kV 20 kV 48.36 kV 83.76 kV 52.84 kV 20 kV 48.36 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Zero sequence currents can flow from a line into a transformer bank if the windings are in ground star / delta. delta / star. delta / delta. star / grounded star. ground star / delta. delta / star. delta / delta. star / grounded star. ANSWER DOWNLOAD EXAMIANS APP
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