TRANSMISSION & DISTRIBUTION QUIZ

As a rough guide, the most economical transmission voltage is _____of the length of the line.

2kV/km

3 kV/km

3.2kV/km

1.6 kV/km

TRUE ANSWER : ?
YOUR ANSWER : ?

Skin effect only exist in

Low voltage dc overhead transmission

High voltage dc overhead transmission

Ac transmission

Cables carrying dc current

TRUE ANSWER : ?
YOUR ANSWER : ?

Out of the following which type of poles are bulky?

Tubular steel poles

Transmission towers

Concrete poles

Wooden poles

TRUE ANSWER : ?
YOUR ANSWER : ?

The usual span with RCC Poles are

60-100 meters

800-100 meters

300-500 meters

40-50 meters

TRUE ANSWER : ?
YOUR ANSWER : ?

The skin effect of a conductor will reduce as the

Permeability of conductor material increases

Frequency increases

Diameter increases

Resistivity of conductor material increases

TRUE ANSWER : ?
YOUR ANSWER : ?

Impedance relay is used on _____ transmission lines.

Long

Medium

All

Short

TRUE ANSWER : ?
YOUR ANSWER : ?

A feeder, in a transmission system, feeds power to

All of these

Generating stations

Service mains

Distributors

TRUE ANSWER : ?
YOUR ANSWER : ?

If the height of transmission tower is increased, which of the following parameters is likely to change?

Capacitance

Inductance

All of the listed here

Resistance

TRUE ANSWER : ?
YOUR ANSWER : ?

The minimum dielectric stress in cable is at

Conductor surface

Centre of conductor

Lead sheath

None of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

A synchronous condenser is generally installed at the _____ of the transmission line

Sending end

Middle

None of the listed here

Receiving end

TRUE ANSWER : ?
YOUR ANSWER : ?

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