Natural rubber is obtained from milky sap of tropical trees
Natural rubber is obtained from milky sap of tropical trees
A. Yes
B. No
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If the length of a cable is doubled, its capacitance____________?
If the length of a cable is doubled, its capacitance____________?A. becomes one-fourth
B. becomes one-half
C. becomes double
D. remains unchangedIs a cable is to be designed for use on 1000 kV, which insulation would you prefer ____________?
Is a cable is to be designed for use on 1000 kV, which insulation would you prefer ____________?A. Polyvinyle chloride
B. Vulcanised rubber
C. Impregnated paper
D. Compressed SFe gas
E. none of the aboveLow tension cables are generally used up to___________?
Low tension cables are generally used up to___________?A. 200 V
B. 500 V
C. 700 V
D. 1000 VDielectric strength of rubber is around____________?
Dielectric strength of rubber is around____________?A. 5 kV/mm
B. 15 kV/mm
C. 30 kV/mm
D. 200 kV/mmcables are used for 132 kV lines____________?
cables are used for 132 kV lines____________?A. High tension
B. Super tension
C. Extra high tension
D. Extra super voltageCopper 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 chromium