Transmission And Distribution Set 2

Quartz ✘ Kaolin ✘ Felspar ✘ Silica ✔

Copper ✘ Wood ✘ R.C.C. ✘ Steel ✔

440 V ✘ 11 V ✘ 33 V ✘ 66 V ✔

150 to 220 kV ✘ 100 to 120 kV ✘ 60 to 100 kV ✘ 20 to 50 kV ✔

Radial system ✘ Ring system ✘ Interconnected system ✘ None of the above ✔

Current flows through the half cross-section of the conductor ✘ Portion of the conductor near the surface carries more current and core of the conductor carries less current ✘ Portion of the conductor near the surface carries less current and core of the conductor carries more current ✘ Any of the above ✔

2 m ✘ 3.5 m ✘ 6 m ✘ 8.5 m ✔

Resistivity of conductor material increases ✘ Permeability of conductor material increases ✘ Diameter increases ✘ Frequency increases ✔

Increase of short-circuit current of the system ✘ Availability of steady voltage at all loads at the line terminals ✘ Possibility of better protection for the line due to possible use of higher terminal reactants ✘ Improvement of power factor at times of moderate and heavy loads ✔

Reactors ✘ Generators ✘ Transformers ✘ All of the above ✔