The insulating material for cables should____________?

Related Mcqs:

1. The insulating material for a cable should have__________?

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

2. The disadvantage with paper as insulating material is____________?

   A. it is hygroscopic B. it has high capacitance C. it is an organic material D. none of the above...

3. The insulating material should have____________?

   A. low permittivity B. high resistivity C. high dielectric strength D. all of the above...

4. Which of the following insulation is used in cables ?

   A. Varnished cambric B. Rubber C. Paper D. Any of the above...

5. The thickness of the layer of insulation on the conductor, in cables, depends upon___________?

   A. reactive power B. power factor C. voltage D. current carrying capacity...

6. In the cables, the location of fault is usually found out by comparing____________?

   A. the resistance of the conductor B. the inductance of conductors C. the capacitances of insulated conductors D. all above parameters...

7. The intersheaths in the cables are used to_____________?

   A. minimize the stress B. avoid the requirement of good insulation C. provide proper stress distribution D. none of the above...

8. Copper as conductor for cables is used as________?

   A. annealed B. hardened and tempered C. hard drawn D. alloy with chromium...

9. The advantage of oil filled cables is_________?

   A. more perfect impregnation B. smaller overall size C. no ionisation, oxidation and formation of voids D. all of the above...

10. 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...