Electrical Engineering : Cables QUESTIONS AND ANSWERS :: part2 : 6 to 10
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
6.If a cable of homogeneous insulation has a maximum stress of 10 kV/mm, then the dielectric strength of insulation should be |
| 5 kV/mm |
| 10 kV/mm |
| 15 kV/mm |
| 30 kV/mm |
7.The insulation of the cable decreases with |
| the increase in length of the insulation |
| the decrease in the length of the insulation |
| either (a) or (b) |
| none of the above |
8.The disadvantage with paper as insulating material is |
| it is hygroscopic |
| it has high capacitance |
| it is an organic material |
| none of the above |
9.In the cables, sheaths are used to |
| prevent the moisture from entering the cable |
| provide enough strength |
| provide proper insulation |
| none of the above |
10.The breakdown of insulation of the cable can be avoided economically by the use of |
| inter-sheaths |
| insulating materials with different dielectric constants |
| both (a) and (b) |
| none of the above |
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