ELECTRICAL CABLES QUIZ

A cable carrying alternating current has

Hysteresis and leakage losses only

Hysteresis, leakage, copper and friction losses

Hysteresis losses only

Hysteresis, leakage and copper losses only

TRUE ANSWER : ?
YOUR ANSWER : ?

In capacitance grading of cables we use a _________ dielectric.

Homogeneous

Composite

Porous

Hygroscopic

TRUE ANSWER : ?
YOUR ANSWER : ?

In single core cables armouring is not done to

Either of the listed here

Make it flexible

None of the listed here

Avoid excessive sheath losses

TRUE ANSWER : ?
YOUR ANSWER : ?

Pressure cables are generally not used beyond

33 kV

132 kV

11 kV

66 kV

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Brown

Blue

Black

Red

TRUE ANSWER : ?
YOUR ANSWER : ?

The insulating material for cables should

Be non-hygroscopic

All of the listed here

Be non-inflammable

Be acid proof

TRUE ANSWER : ?
YOUR ANSWER : ?

Low tension cables are generally used up to

600 V

1000 V

400 V

200 V

TRUE ANSWER : ?
YOUR ANSWER : ?

The advantage of oil filled cables is

All of the listed here

No ionization, oxidation and formation of voids

Smaller overall size

More perfect impregnation

TRUE ANSWER : ?
YOUR ANSWER : ?

The thickness of metallic shielding on cables is usually

40 to 60 mm

3 to 5 mm

0.2 to 0.4 mm

0.04 mm

TRUE ANSWER : ?
YOUR ANSWER : ?

Dielectric strength of rubber is around

5 kV/mm

15 kV/mm

30 kV/mm

25 kV/mm

TRUE ANSWER : ?
YOUR ANSWER : ?

↑