Electrical Engineering Questions And Answers :: Cables: part2



Electrical Engineering : Cables QUESTIONS AND ANSWERS :: part2 : 11 to 15

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

11.If the length of a cable is doubled, its capacitance

becomes one-fourth
becomes one-half
becomes double
remains unchanged

12.Cables for 220 kV lines are invariably

mica insulated
paper insulated
compressed oil or compressed gas insulated
rubber insulated

13.A cable carrying alternating current has

hysteresis losses only
hysteresis and leakage losses only
hysteresis, leakage and copper losses only
hysteresis, leakage, copper and friction losses

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

one half
double
four times
none of the above

15.The advantage of oil filled cables is

more perfect impregnation
smaller overall size
no ionisation, oxidation and formation of voids
all of the above

More Cables QUESTIONS AND ANSWERS available in next pages

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