Electrical Cables The electrostatic stress in underground cables is Same at the conductor and the sheath Minimum at the conductor and maximum at the sheath Maximum at the conductor and minimum at the sheath Zero at the conductor as well as on the sheath Same at the conductor and the sheath Minimum at the conductor and maximum at the sheath Maximum at the conductor and minimum at the sheath Zero at the conductor as well as on the sheath ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables 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 None of the listed here Four times One half Double None of the listed here Four times One half Double ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables High tension cables are generally used up to 33 kV 132 kV 66 kV 11 kV 33 kV 132 kV 66 kV 11 kV ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables Underground cables are laid at sufficient depth All of the listed here To minimize temperature stresses To avoid being unearthed easily due to removal of soil To minimize the effect of shocks and vibrations due to gassing vehicles, etc. All of the listed here To minimize temperature stresses To avoid being unearthed easily due to removal of soil To minimize the effect of shocks and vibrations due to gassing vehicles, etc. ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables Dielectric strength of rubber is around 15 kV/mm 30 kV/mm 5 kV/mm 25 kV/mm 15 kV/mm 30 kV/mm 5 kV/mm 25 kV/mm ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables Solid type cables are considered unreliable beyond 66 kV because Skin effect dominates on the conductor Of corona loss between conductor and sheath material Insulation may melt due to higher temperature There is a danger of breakdown of insulation due to the presence of voids Skin effect dominates on the conductor Of corona loss between conductor and sheath material Insulation may melt due to higher temperature There is a danger of breakdown of insulation due to the presence of voids ANSWER DOWNLOAD EXAMIANS APP
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