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 One half None of the listed here Four times Double One half None of the listed here Four times Double ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables The insulating material for a cable should have All of the listed here High mechanical strength low cost High dielectric strength All of the listed here High mechanical strength low cost High dielectric strength ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables Conduit pipes are normally used to protect ________ cables. All of the listed here PVC sheathed cables Unsheathed cables Armoured All of the listed here PVC sheathed cables Unsheathed cables Armoured ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables If a cable of homogeneous insulation has a maximum stress of 10 kV/mm, then the dielectric strength of insulation should be 30 kV/mm 5 kV/mm 15 kV/mm 10 kV/mm 30 kV/mm 5 kV/mm 15 kV/mm 10 kV/mm ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables Underground cables are laid at sufficient depth All of the listed here To minimize the effect of shocks and vibrations due to gassing vehicles, etc. To minimize temperature stresses To avoid being unearthed easily due to removal of soil All of the listed here To minimize the effect of shocks and vibrations due to gassing vehicles, etc. To minimize temperature stresses To avoid being unearthed easily due to removal of soil ANSWER DOWNLOAD EXAMIANS APP
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
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