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Electrical Cables

Electrical Cables
_________ cables are used for 132 kV lines.

Extra high tension
Extra super voltage
High tension
Super tension

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Electrical Cables
Which of the following protects a cable against mechanical injury?

None of the listed here
Armouring
Bedding
Sheath

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Electrical Cables
The bedding on a cable consists of

Hessian cloth
Both Hessian cloth and Jute
Jute
None of the listed here

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Electrical Cables
A cable carrying alternating current has

Hysteresis and leakage losses only
Hysteresis, leakage and copper losses only
Hysteresis, leakage, copper and friction losses
Hysteresis losses only

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Electrical Cables
In cables the charging current

Leads the voltage by 90°
Leads the voltage by 180°
Lags the voltage by 180°
Lags the voltage by 90°

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Electrical Cables
The relative permittivity of rubber is

Between 5 and 7
Between 2 and 3
None of the listed here
Between 8 and 9

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