Electrical Cables The electrostatic stress in underground cables is 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 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 ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables If a power cable and a communication cable are to run parallel the minimum distance between the two, to avoid interference, should be 100 cm 50 cm 30 cm 20 cm 100 cm 50 cm 30 cm 20 cm 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 Double One half Four times None of the listed here Double One half Four times None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables Low tension cables are generally used up to 600 V 200 V 1000 V 400 V 600 V 200 V 1000 V 400 V 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 There is a danger of breakdown of insulation due to the presence of voids Insulation may melt due to higher temperature Skin effect dominates on the conductor Of corona loss between conductor and sheath material There is a danger of breakdown of insulation due to the presence of voids Insulation may melt due to higher temperature ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables The thickness of the layer of insulation on the conductor, in cables, depends upon Current carrying capacity Reactive power Voltage Power factor Current carrying capacity Reactive power Voltage Power factor ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS