A. Yes
B. No
A. Yes
B. No
It is difficult to maintain oil filled cables____________? Read More »
Cables A. Yes
B. No
The metallic sheath may be made of lead or lead alloy or of aluminium ? Read More »
Cables A. becomes one-fourth
B. becomes one-half
C. becomes double
D. remains unchanged
If the length of a cable is doubled, its capacitance____________? Read More »
Cables A. prevent the moisture from entering the cable
B. provide enough strength
E. provide proper insulation
D. none of the above
In the cables, sheaths are used to___________? Read More »
Cables A. inter-sheaths
B. insulating materials with different dielectric constants
C. both (A) and (B)
D. none of the above
A. minimize the stress
B. avoid the requirement of good insulation
C. provide proper stress distribution
D. none of the above
The intersheaths in the cables are used to_____________? Read More »
Cables A. 5 kV/mm
B. 10 kV/mm
A. 15 kV/mm
D. 30 kV/mm
A. lags the voltage by 90°
B. leads the voltage by 90°
C. lags the voltage by 180°
D. leads the voltage by 180°
In cables the charging current__________? Read More »
Cables A. insulation may melt due to higher temperature
B. skin effect dominates on the conductor
C. of corona loss between conductor and sheath material
D. there is a danger of breakdown of insulation due to the presence of voids
Solid type cables are considered unreliable beyond 66 kV because___________? Read More »
Cables