ELECTRICAL CABLES QUIZ

In single core cables armouring is not done to

None of the listed here

Avoid excessive sheath losses

Make it flexible

Either of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

In a cable, the maximum stress under operating conditions is at

Sheath

Armour

Conductor surface

Insulation layer

TRUE ANSWER : ?
YOUR ANSWER : ?

The surge resistance of cable is

5 ohms

500 ohms

100 ohms

50 ohms

TRUE ANSWER : ?
YOUR ANSWER : ?

If the length of a cable is doubled, its capacitance

Becomes one-half

None of the listed here

Becomes double

Becomes one-fourth

TRUE ANSWER : ?
YOUR ANSWER : ?

The thickness of the layer of insulation on the conductor, in cables, depends upon

Power factor

Voltage

Reactive power

Current carrying capacity

TRUE ANSWER : ?
YOUR ANSWER : ?

If a cable of homogeneous insulation has a maximum stress of 10 kV/mm, then the dielectric strength of insulation should be

5 kV/mm

10 kV/mm

15 kV/mm

30 kV/mm

TRUE ANSWER : ?
YOUR ANSWER : ?

Dielectric strength of rubber is around

5 kV/mm

25 kV/mm

30 kV/mm

15 kV/mm

TRUE ANSWER : ?
YOUR ANSWER : ?

_________ cables are used for 132 kV lines.

High tension

Extra high tension

Super tension

Extra super voltage

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following insulation is used in cables?

Paper

All of the listed here

Rubber

Varnished cambric

TRUE ANSWER : ?
YOUR ANSWER : ?

In a cable immediately above metallic sheath ________ is provided.

Earthing connection

Armouring

None of the listed here

Bedding

TRUE ANSWER : ?
YOUR ANSWER : ?

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