Transmission & Distribution Which of the following faults is most likely to occur in cables? Breakdown of cable insulation Open circuit fault Cross or short-circuit fault All of these Breakdown of cable insulation Open circuit fault Cross or short-circuit fault All of these ANSWER DOWNLOAD EXAMIANS APP
Transmission & Distribution The skin effect of a conductor will reduce as the Frequency increases Resistivity of conductor material increases Diameter increases Permeability of conductor material increases Frequency increases Resistivity of conductor material increases Diameter increases Permeability of conductor material increases ANSWER DOWNLOAD EXAMIANS APP
Transmission & Distribution Which of the following D.C. distribution system is the simplest and lowest in first cost? Interconnected system Radial system None of these Ring system Interconnected system Radial system None of these Ring system ANSWER DOWNLOAD EXAMIANS APP
Transmission & Distribution The wooden poles well impregnated with creosote oil or any preservative compound has life 10 to 15 years 25 to 30 years 60 to 70 years From 2 to 5 years 10 to 15 years 25 to 30 years 60 to 70 years From 2 to 5 years ANSWER DOWNLOAD EXAMIANS APP
Transmission & Distribution Which of the following is the source of heat generation in the cables? losses in the conductor All of these Dielectric losses in cable insulation Losses in the metallic sheathings and armourings losses in the conductor All of these Dielectric losses in cable insulation Losses in the metallic sheathings and armourings ANSWER DOWNLOAD EXAMIANS APP
Transmission & Distribution In capacitance grading of cables, the dielectric of highest permittivity is Farthest away from core None of the listed here In the middle Near the core Farthest away from core None of the listed here In the middle Near the core ANSWER DOWNLOAD EXAMIANS APP