A. same at the conductor and the sheath
B. minimum at the conductor and maximum at the sheath
C. maximum at the conductor and minimum at the sheath
D. zero at the conductor as well as on the sheath
E. none of the above
Related Mcqs:
- In congested areas where excavation is expensive and inconvenient ‘draw in system’ of laying of underground cables is often adopted
A. Yes
B. No - Underground cables are laid at sufficient depth___________?
A. to minimise temperature stresses
B. to avoid being unearthed easily due to removal of soil
C. to minimize the effect of shocks and vibrations due to gassing vehicles, etc
D. for all of the above reasons - The advantage of oil filled cables is_________?
A. more perfect impregnation
B. smaller overall size
C. no ionisation, oxidation and formation of voids
D. all of the above - Which of the following insulation is used in cables ?
A. Varnished cambric
B. Rubber
C. Paper
D. Any of the above - The thickness of the layer of insulation on the conductor, in cables, depends upon___________?
A. reactive power
B. power factor
C. voltage
D. current carrying capacity - In the cables, the location of fault is usually found out by comparing____________?
A. the resistance of the conductor
B. the inductance of conductors
C. the capacitances of insulated conductors
D. all above parameters - Conduit pipes are normally used to protect _______ cables
A. unsheathed cables
B. armoured
C. PVC sheathed cables
D. all of the above - Cables for 220 kV lines are invariably____________?
A. mica insulated
B. paper insulated
C. compressed oil or compressed gas insulated
D. rubber insulated
E. none of the above - Copper as conductor for cables is used as________?
A. annealed
B. hardened and tempered
C. hard drawn
D. alloy with chromium - The advantage of cables over overhead transmission lines is___________?
A. easy maintenance
B. low cost
C. can be used in congested areas
D. can be used in high voltage circuits
