It is difficult to maintain oil filled cables____________?
A. Yes
B. No
Month: December 2018
The metallic sheath may be made of lead or lead alloy or of aluminium ?
The metallic sheath may be made of lead or lead alloy or of aluminium ?
A. Yes
B. No
If the length of a cable is doubled, its capacitance____________?
If the length of a cable is doubled, its capacitance____________?
A. becomes one-fourth
B. becomes one-half
C. becomes double
D. remains unchanged
One who looks on the dark side of the things is known as ________?
One who looks on the dark side of the things is known as ________?
A. Optimist
B. Patricide
C. Pessimist
D. Philanthropist
In the cables, sheaths are used to___________?
In the cables, sheaths are used to___________?
A. prevent the moisture from entering the cable
B. provide enough strength
E. provide proper insulation
D. none of the above
The breakdown of insulation of the cable can be avoided economically by the use of___________?
The breakdown of insulation of the cable can be avoided economically by the use of___________?
A. inter-sheaths
B. insulating materials with different dielectric constants
C. both (A) and (B)
D. none of the above
The intersheaths in the cables are used to_____________?
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
If a cable of homogeneous insulation has a maximum stress of 10 kV/mm, then the dielectric strength of insulation should be_______________?
If a cable of homogeneous insulation has a maximum stress of 10 kV/mm, then the dielectric strength of insulation should be_______________?
A. 5 kV/mm
B. 10 kV/mm
A. 15 kV/mm
D. 30 kV/mm
One who looks on the bright side of things is known as ________?
One who looks on the bright side of things is known as ________?
A. Pessimist
B. Novice
C. Optimist
D. Credulous
In cables the charging current__________?
In cables the charging current__________?
A. lags the voltage by 90°
B. leads the voltage by 90°
C. lags the voltage by 180°
D. leads the voltage by 180°