Transmission and distribution

[amp_mcq option1=”1.1 kV” option2=”3.3 kV” option3=”6.6 kV” option4=”11 kV” correct=”option1″]

Detailed SolutionLow voltage cables are meant for use up to

[amp_mcq option1=”Resistance” option2=”Inductance” option3=”Capacitance” option4=”All of the above” correct=”option4″]

Detailed SolutionWhich of the following are the constants of the transmission lines?

[amp_mcq option1=”Dead ended” option2=”At intermediate anchor towers” option3=”Any of the above” option4=”None of the above” correct=”option2″]

Detailed SolutionThe use of strain type insulators is made where the conductors are

[amp_mcq option1=”Distributors” option2=”Service mains” option3=”Feeders” option4=”None of the above” correct=”option3″]

Detailed Solutionare the conductors, which connect the consumer’s terminals to the distribution

[amp_mcq option1=”1-phase 3-wire” option2=”1-phase 4-wire” option3=”3-phase 3-wire” option4=”3-phase 4-wire” correct=”option1″]

Detailed SolutionThe following system is not generally used

[amp_mcq option1=”Direct laying” option2=”Draw-in-system” option3=”Solid system” option4=”All of the above” correct=”option4″]

Detailed SolutionWhich of the following methods is used for laying of underground cables?

[amp_mcq option1=”25 percent” option2=”50 percent” option3=”2-wire feeder is increased 100 percent, saving in copper is A. 25 percent B. 50 percent C. 75 percent” option4=”100 percent” correct=”option4″]

Detailed SolutionTransmitted power remaining the same, if supply voltage of a D.C. 2-wire feeder is increased 100 percent, saving in copper is

[amp_mcq option1=”Steel cored aluminium” option2=”Galvanised steel” option3=”Cadmium copper” option4=”Any of the above” correct=”option1″]

Detailed SolutionWhich of the following materials is used for overhead transmission lines?

[amp_mcq option1=”Large conductor area is required for same power transmission” option2=”Short-circuit current of the system is increased” option3=”Either of the above” option4=”None of the above” correct=”option1″]

Detailed SolutionConstant voltage transmission entails the following disadvantage

[amp_mcq option1=”Unity” option2=”Lagging” option3=”Leading” option4=”Zero” correct=”option2″]

Detailed SolutionThe power factor of industrial loads is generally