24 AUGUST 2021 CURRENT AFFAIRS QUIZ

The bedding on a cable consists of

Hessian cloth

Jute

Both Hessian cloth and Jute

None of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

The insulating material for cables should

Be non-hygroscopic

Be acid proof

Be non-inflammable

All of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

The insulating material for a cable should have

All of the listed here

High dielectric strength

low cost

High mechanical strength

TRUE ANSWER : ?
YOUR ANSWER : ?

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

The resistance of the conductor

The inductance of conductors

All of the listed here

The capacitances of insulated conductors

TRUE ANSWER : ?
YOUR ANSWER : ?

Capacitance grading of cable implies

Use of dielectrics of different permeabilities

Cables using single dielectric in different concentrations

Capacitance required to be introduced at different lengths to counter the effect of inductance

Grading according to capacitance of cables per km length

TRUE ANSWER : ?
YOUR ANSWER : ?

High tension cables are generally used up to

33 kV

132 kV

11 kV

66 kV

TRUE ANSWER : ?
YOUR ANSWER : ?

Conduit pipes are normally used to protect ________ cables.

Unsheathed cables

All of the listed here

Armoured

PVC sheathed cables

TRUE ANSWER : ?
YOUR ANSWER : ?

PVC stands for

Polyvinyl chloride

Positive voltage conductor

Post varnish conductor

Pressed and varnished cloth

TRUE ANSWER : ?
YOUR ANSWER : ?

A certain cable has an insulation of relative permittivity 4. If the insulation is replaced by one of relative permittivity 2, the capacitance of the cable will become

None of the listed here

Double

Four times

One half

TRUE ANSWER : ?
YOUR ANSWER : ?

In single core cables armouring is not done to

Either of the listed here

None of the listed here

Avoid excessive sheath losses

Make it flexible

TRUE ANSWER : ?
YOUR ANSWER : ?