ELECTRICAL CABLES QUIZ

Which of the following insulation is used in cables?

All of the listed here

Paper

Rubber

Varnished cambric

TRUE ANSWER : ?
YOUR ANSWER : ?

In cables the charging current

Lags the voltage by 90°

Lags the voltage by 180°

Leads the voltage by 90°

Leads the voltage by 180°

TRUE ANSWER : ?
YOUR ANSWER : ?

The thickness of metallic shielding on cables is usually

40 to 60 mm

0.2 to 0.4 mm

0.04 mm

3 to 5 mm

TRUE ANSWER : ?
YOUR ANSWER : ?

Copper as conductor for cables is used as

Hard drawn

Hardened and tempered

Alloy with chromium

Annealed

TRUE ANSWER : ?
YOUR ANSWER : ?

PVC stands for

Polyvinyl chloride

Positive voltage conductor

Post varnish conductor

Pressed and varnished cloth

TRUE ANSWER : ?
YOUR ANSWER : ?

In a cable immediately above metallic sheath ________ is provided.

None of the listed here

Earthing connection

Bedding

Armouring

TRUE ANSWER : ?
YOUR ANSWER : ?

The current carrying capacity of cables in D.C. is more than that in A.C. mainly due to

Smaller dielectric loss

Absence of harmonics

None of the listed here

Nonexistence of any stability limit

TRUE ANSWER : ?
YOUR ANSWER : ?

In case of three core flexible cable the color of the neutral is

Blue

Black

Red

Brown

TRUE ANSWER : ?
YOUR ANSWER : ?

In single core cables armouring is not done to

None of the listed here

Avoid excessive sheath losses

Either of the listed here

Make it flexible

TRUE ANSWER : ?
YOUR ANSWER : ?

In the cables, sheaths are used to

Provide proper insulation

Prevent the moisture from entering the cable

None of the listed here

Provide enough strength

TRUE ANSWER : ?
YOUR ANSWER : ?

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