A. minimize the stress
B. avoid the requirement of good insulation
C. provide proper stress distribution
D. none of the above
Related Mcqs:
- High tension cables are generally used up to_____________?
A. 11kV
B. 33kV
C. 66 kV
D. 132 kV - Low tension cables are generally used up to___________?
A. 200 V
B. 500 V
C. 700 V
D. 1000 V - The current carrying capacity of cables in D.C. is more than that in A.C. mainly due to__________?
A. absence of harmonics
B. non-existence of any stability limit
C. smaller dielectric loss
D. absence of ripples
E. none of the above - The insulating material for cables should____________?
A. be acid proof
B. be non-inflammable
C. be non-hygroscopic
D. have all above properties - In capacitance grading of cables we use a _______ dielectric?
A. composite
B. porous
C. homogeneous
D. hygroscopic - Pressure cables are generally not used beyond__________?
A. 11 kV
B. 33 kV
C. 66 kV
D. 132 kV - 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 - In congested areas where excavation is expensive and inconvenient ‘draw in system’ of laying of underground cables is often adopted
A. Yes
B. No - The thickness of metallic shielding on cables is usually_______________?
A. 0.04 mm
B. 0.2 to 0.4 mm
E. 3 to 5 mm
D. 40 to 60 mm - 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
