ELECTRICAL CABLES QUIZ

The bedding on a cable consists of

Both Hessian cloth and Jute

None of the listed here

Hessian cloth

Jute

TRUE ANSWER : ?
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In single core cables armouring is not done to

Avoid excessive sheath losses

Make it flexible

None of the listed here

Either of the listed here

TRUE ANSWER : ?
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If the length of a cable is doubled, its capacitance

Becomes double

Becomes one-half

None of the listed here

Becomes one-fourth

TRUE ANSWER : ?
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The electrostatic stress in underground cables is

Minimum at the conductor and maximum at the sheath

Maximum at the conductor and minimum at the sheath

Same at the conductor and the sheath

Zero at the conductor as well as on the sheath

TRUE ANSWER : ?
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The material for armouring on cable is usually

Both Steel tape and Galvanized steel wire

None of the listed here

Galvanized steel wire

Steel tape

TRUE ANSWER : ?
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The insulating material for a cable should have

High mechanical strength

High dielectric strength

low cost

All of the listed here

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In capacitance grading of cables we use a _________ dielectric.

Porous

Composite

Hygroscopic

Homogeneous

TRUE ANSWER : ?
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In cables the charging current

Leads the voltage by 180°

Lags the voltage by 180°

Lags the voltage by 90°

Leads the voltage by 90°

TRUE ANSWER : ?
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Cables, generally used beyond 66 kV are

Belted

Armoured

Oil filled

S.L. type

TRUE ANSWER : ?
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The thickness of metallic shielding on cables is usually

0.2 to 0.4 mm

3 to 5 mm

40 to 60 mm

0.04 mm

TRUE ANSWER : ?
YOUR ANSWER : ?

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