Electrical Engineering Questions And Answers :: Cables: part2



Electrical Engineering : Cables QUESTIONS AND ANSWERS :: part2 : 16 to 20

Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

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

2 cm
10 cm
50 cm
400 cm

17.The advantage of cables over overhead transmission lines is

easy maintenance
low cost
can be used in congested areas
can be used in high voltage circuits

18.The insulating material should have

low permittivity
high resistivity
high dielectric strength
all of the above

19.Solid type cables are considered unreliable beyond 66 kV because

insulation may melt due to higher temperature
skin effect dominates on the conduc�tor
of corona loss between conductor and sheath material
there is a danger of breakdown of insulation due to the presence of voids

20.In a cable the voltage stress is maximum at

sheath
insulator
surface of the conductor
core of the conductor

More Cables QUESTIONS AND ANSWERS available in next pages

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