TRANSMISSION & DISTRIBUTION QUIZ

The most common fault in overhead distribution system is

None of the listed here

All phase short circuited

One phase to earth fault

Phase to phase fault

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Basically the boosters are

Synchronous motors

Transformers

Inductors

Capacitors

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The skin effect of a conductor will reduce as the

Permeability of conductor material increases

Diameter increases

Frequency increases

Resistivity of conductor material increases

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The colour of the neutral of three core flexible cable is

Brown

Red

Black

Blue

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Most reliable distribution system is

Radial system

None of the listed here

Interconnected system

Ring main system

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

Capacitance

Resistance

Inductance

All of the listed here

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Power distribution by cables is generally adopted for line length

Less than 50 km

Above 200 km

Above 100 km

Less than 10 km

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The angular displacement between two interconnected stations is mainly due to

Reactance of the interconnector

Synchronous reactance of both the alternators

Armature reactance of both alternators

All of these

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The power transmitted will be maximum when

Sending end voltage is more

Reactance is high

Corona losses are minimum

Receiving end voltage is more

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The purpose of using a booster is to

Increase current

Reduce current

Compensate for voltage drop

Reduce voltage drop

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