Cables, generally used beyond 66 kV are___________?
Cables, generally used beyond 66 kV are___________?
A. oil filled
B. S.L. type
C. belted
D. armoured
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Pressure cables are generally not used beyond__________?
Pressure cables are generally not used beyond__________?A. 11 kV
B. 33 kV
C. 66 kV
D. 132 kVCopper as conductor for cables is used as________?
Copper as conductor for cables is used as________?A. annealed
B. hardened and tempered
C. hard drawn
D. alloy with chromiumUnderground cables are laid at sufficient depth___________?
Underground cables are laid at sufficient depth___________?A. to minimise temperature stresses
B. to avoid being unearthed easily due to removal of soil
C. to minimize the effect of shocks and vibrations due to gassing vehicles, etc
D. for all of the above reasonsIf a power cable and a communication cable are to run parallel the minimum distance between the two, to avoid interference, should be______________?
If a power cable and a communication cable are to run parallel the minimum distance between the two, to avoid interference, should be______________?A. 2 cm
B. 10 cm
C. 50 cm
D. 400 cmEmpire tape is__________?
Empire tape is__________?A. varnished cambric
B. vulcanised rubber
C. impregnated paper
D. none of the aboveWhich of the following insulation is used in cables ?
Which of the following insulation is used in cables ?A. Varnished cambric
B. Rubber
C. Paper
D. Any of the above