TRANSMISSION & DISTRIBUTION QUIZ

The surge resistance of cables is

50 ohms

300 ohms

200 ohms

20 ohms

TRUE ANSWER : ?
YOUR ANSWER : ?

When the length of cable increases , its capacitance

Increases

Remain same

None of the listed here

Decreases

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following D.C. distribution system is the simplest and lowest in first cost?

None of these

Interconnected system

Ring system

Radial system

TRUE ANSWER : ?
YOUR ANSWER : ?

High voltages for transmission power is economically available from

Ac currents

Carrier currents

Dc currents

None of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following characteristics should the line supports for transmission lines possess?

High mechanical strength

All of these

Longer life

Low cost

TRUE ANSWER : ?
YOUR ANSWER : ?

In a supply system, the cost of conductor is

Directly proportional to sqaure of area of cross section

Inveresely proportional to area of cross-section

None of the listed here

Directly proportional to area of cross section

TRUE ANSWER : ?
YOUR ANSWER : ?

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

TRUE ANSWER : ?
YOUR ANSWER : ?

Skin effect only exist in

Cables carrying dc current

Ac transmission

High voltage dc overhead transmission

Low voltage dc overhead transmission

TRUE ANSWER : ?
YOUR ANSWER : ?

In a 3- phase balanced load, each phase has

Same impedance and p. f.

Same impedance but different p. f

None of the listed here

Same p. f. But different impedance

TRUE ANSWER : ?
YOUR ANSWER : ?

The most common fault in overhead distribution system is

All phase short circuited

Phase to phase fault

One phase to earth fault

None of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

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