Cables for 220 kV lines are invariably____________?

Related Mcqs:

cables are used for 132 kV lines____________?

A. High tension B. Super tension C. Extra high tension D. Extra super voltage...

The current carrying capacity of cables in D.C. is more than that in A.C. mainly due to__________?

A. absence of harmonics B. non-existence of any stability limit C. smaller dielectric loss D. absence of ripples E. none of the above...

A certain cable has an insulation of relative permittivity 4. If the insulation is replaced by one of relative permittivity 2, the capacitance of the cable will become_____________?

A. one half B. double C. four times D. none of the above...

The breakdown voltage of a cable depends on_____________?

A. presence of moisture B. working temperature C. time of application of the voltage D. all of the above...

Underground cables are laid at sufficient depth___________?

A. to minimise temperature stresses B. to avoid being unearthed easily due to removal of soil C. to minimize the effect of shocks and vibrations due to gassing vehicles, etc D. for all of the above reasons...