ELECTRICAL CABLES QUIZ

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

Armour

Insulation layer

Conductor surface

Sheath

TRUE ANSWER : ?
YOUR ANSWER : ?

Underground cables are laid at sufficient depth

All of the listed here

To minimize temperature stresses

To avoid being unearthed easily due to removal of soil

To minimize the effect of shocks and vibrations due to gassing vehicles, etc.

TRUE ANSWER : ?
YOUR ANSWER : ?

_________ cables are used for 132 kV lines.

Extra super voltage

High tension

Extra high tension

Super tension

TRUE ANSWER : ?
YOUR ANSWER : ?

In the cables, sheaths are used to

None of the listed here

Prevent the moisture from entering the cable

Provide proper insulation

Provide enough strength

TRUE ANSWER : ?
YOUR ANSWER : ?

The bedding on a cable consists of

None of the listed here

Hessian cloth

Jute

Both Hessian cloth and Jute

TRUE ANSWER : ?
YOUR ANSWER : ?

The thickness of metallic shielding on cables is usually

0.04 mm

3 to 5 mm

40 to 60 mm

0.2 to 0.4 mm

TRUE ANSWER : ?
YOUR ANSWER : ?

In a cable the voltage stress is maximum at

Insulator

Sheath

Core of the conductor

Surface of the conductor

TRUE ANSWER : ?
YOUR ANSWER : ?

In the cables, the location of fault is usually found out by comparing

All of the listed here

The resistance of the conductor

The inductance of conductors

The capacitances of insulated conductors

TRUE ANSWER : ?
YOUR ANSWER : ?

The advantage of cables over overhead transmission lines is

Can be used in congested areas

Can be used in high voltage circuits

Low cost

Easy maintenance

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following protects a cable against mechanical injury?

Bedding

None of the listed here

Armouring

Sheath

TRUE ANSWER : ?
YOUR ANSWER : ?

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