Power System - I

higher. ✘ lower. ✘ unchanged. ✘ none of these. ✔

rms phase voltage. ✘ peak phase voltage. ✘ peak line to line voltage. ✘ rms line to line voltage. ✔

light load. ✘ no load. ✘ full load. ✘ light load or no load. ✔

its current carrying capacity. ✘ voltage drop in it. ✘ operating voltage. ✘ operating frequency. ✔

its current carrying capacity. ✘ operating voltage. ✘ voltage drop in it. ✘ operating frequency. ✔

appearance and public safety. ✘ maintenance cost. ✘ frequency of faults, power failure and accidents. ✘ all of the above. ✔

exposure to lighting. ✘ heavy initial cost. ✘ high losses. ✘ more maintenance. ✔

more flexible. ✘ higher charging current. ✘ surge problem. ✘ high initial cost. ✔

oil circuit breaker. ✘ air blast circuit breaker. ✘ SF6 breaker. ✘ vacuum circuit breaker ✔

45° ✘ 90° ✘  120°  ✘  180° ✔