Rubber is most commonly used insulation in cables

Related Mcqs:

In case of three core flexible cable the colour of the neutral is_________?

A. blue B. black C. brown D. none of the above...

The relative permittivity of rubber is____________?

A. between 2 and 3 B. between 5 and 6 C. between 8 and 10 D. between 12 and 14...

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...

Polyethylene has very poor dielectric and ageing properties

A. Yes B. No...

The advantage of cables over overhead transmission lines is___________?

A. easy maintenance B. low cost C. can be used in congested areas D. can be used in high voltage circuits...