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 Four times One half None of the listed here Double Four times One half None of the listed here Double 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 30 cm 50 cm 100 cm 20 cm 30 cm 50 cm 100 cm 20 cm ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables The electrostatic stress in underground cables is Maximum at the conductor and minimum at the sheath Same at the conductor and the sheath Minimum at the conductor and maximum at the sheath Zero at the conductor as well as on the sheath Maximum at the conductor and minimum at the sheath Same at the conductor and the sheath Minimum at the conductor and maximum at the sheath Zero at the conductor as well as on the sheath ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables The advantage of cables over overhead transmission lines is Can be used in congested areas Easy maintenance Can be used in high voltage circuits Low cost Can be used in congested areas Easy maintenance Can be used in high voltage circuits Low cost 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 5 kV/mm 15 kV/mm 10 kV/mm 30 kV/mm 5 kV/mm 15 kV/mm 10 kV/mm 30 kV/mm ANSWER DOWNLOAD EXAMIANS APP
Electrical Cables Pressure cables are generally not used beyond 132 kV 33 kV 66 kV 11 kV 132 kV 33 kV 66 kV 11 kV ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS