The bedding on a cable consists of____________?

Related Mcqs:

1. 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...

2. If a power cable and a communication cable are to run parallel the minimum distance between the two, to avoid interference, should be______________?

   A. 2 cm B. 10 cm C. 50 cm D. 400 cm...

3. The insulating material for a cable should have__________?

   A. low cost B. high dielectric strength C. high mechanical strength D. all of the above...

4. The minimum dielectric stress in a cable is at_____________?

   A. armour B. bedding C. conductor surface D. lead sheath...

5. The surge resistance of cable is__________?

   A. 5 ohms B. 20 ohms C. 50 ohms D. 100 ohms...

6. The breakdown of insulation of the cable can be avoided economically by the use of___________?

   A. inter-sheaths B. insulating materials with different dielectric constants C. both (A) and (B) D. none of the above...

7. If the length of a cable is doubled, its capacitance____________?

   A. becomes one-fourth B. becomes one-half C. becomes double D. remains unchanged...

8. 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...

9. Is a cable is to be designed for use on 1000 kV, which insulation would you prefer ____________?

   A. Polyvinyle chloride B. Vulcanised rubber C. Impregnated paper D. Compressed SFe gas E. none of the above...

10. The insulation of the cable decreases with__________?

    A. the increase in length of the insulation B. the decrease in the length of the insulation C. either A. or (b) D. none of the above...