High tension cables are generally used up to_____________?
High tension cables are generally used up to_____________?
A. 11kV
B. 33kV
C. 66 kV
D. 132 kV
Similar Posts
Dielectric 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/mmThe insulating material for a cable should have__________?
The insulating material for a cable should have__________?A. low cost
B. high dielectric strength
C. high mechanical strength
D. all of the aboveA 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_____________?
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_____________?A. one half
B. double
C. four times
D. none of the aboveIf 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 unchangedConduit pipes are normally used to protect _______ cables
Conduit pipes are normally used to protect _______ cablesA. unsheathed cables
B. armoured
C. PVC sheathed cables
D. all of the aboveCables, generally used beyond 66 kV are___________?
Cables, generally used beyond 66 kV are___________?A. oil filled
B. S.L. type
C. belted
D. armoured