TRANSMISSION & DISTRIBUTION QUIZ

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 voltage in a radial distribution will be minimum at

The midpoint of the distributor

The end of the distributor

The distribution substation

None of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

A 3 wire dc distribution system makes available

Three voltages

One voltages

Two voltages

None of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following faults is most likely to occur in cables?

Open circuit fault

Cross or short-circuit fault

Breakdown of cable insulation

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

The domestic load that has unity power factor is

Tube

Filament lamp

Fan

Mixer

TRUE ANSWER : ?
YOUR ANSWER : ?

When the transmission voltage is increased, the line losses are

Decreased

None of the listed here

Increased

Same

TRUE ANSWER : ?
YOUR ANSWER : ?

The material used for the manufacture of grounding wire is

Stainless steel

Aluminium

Galvanized steel

Cast iron

TRUE ANSWER : ?
YOUR ANSWER : ?

A line from which the loads are tapped off is called

Feeder

Service mains

Distributor

None of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

Skin effect is proportional to

(conductor diameter)2

None of these

(conductor diameter)1/2

(conductor diameter)4

(conductor diameter)3

TRUE ANSWER : ?
YOUR ANSWER : ?

When a conductor carries more current on the surface as compared to core, it is due to

Corona

Permeability variation

Unsymmetrical fault

Skin effect

TRUE ANSWER : ?
YOUR ANSWER : ?

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