Transmission and distribution

[amp_mcq option1=”3.3 kV” option2=”6.6 kV” option3=”11 kV” option4=”33 kV” correct=”option4″]

Detailed SolutionThe operating voltage of super-tension cables is up to

[amp_mcq option1=”both balancers run as generators” option2=”both balancers run as motors” option3=”3-wire distributor using balancers and having unequal loads on the two sides A. both balancers run as generators B. both balancers run as motors C. balancer connected to lightly- loaded side runs as a motor” option4=”balancer connected to heavily- loaded side runs as a motor” correct=”option3″]

Detailed SolutionIn a D.C. 3-wire distributor using balancers and having unequal loads on the two sides

[amp_mcq option1=”One-fourth” option2=”One-third” option3=”distributor is fed at both ends with equal voltages. As compared to a similar distributor fed at one end only, the drop at the middle point is A. One-fourth B. One-third C. One-half” option4=”Twice” correct=”option3″]

Detailed SolutionA uniformly loaded D.C. distributor is fed at both ends with equal voltages. As compared to a similar distributor fed at one end only, the drop at the middle point is

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

Detailed Solution________ are the conductors, which connect the consumer’s terminals to the distribution.

[amp_mcq option1=”Distributors” option2=”Generating stations” option3=”Service mains” option4=”All of the above” correct=”option4″]

Detailed SolutionA feeder, in a transmission system, feeds power to

[amp_mcq option1=”Alloy steel” option2=”Stainless steel” option3=”Mild steel” option4=”High speed steel” correct=”option1″]

Detailed SolutionThe steel used in steel cored conductors is usually

[amp_mcq option1=”Dry weather” option2=”Winter” option3=”Summer heat” option4=”Humid weather” correct=”option4″]

Detailed SolutionThere is a greater possibility of occurrence of corona during

[amp_mcq option1=”Presence of ozone detected by odour” option2=”Hissing sound” option3=”Faint luminous glow of bluish color” option4=”All of the above” correct=”option4″]

Detailed SolutionThe effect of corona can be detected by

[amp_mcq option1=”See-back effect” option2=”Ferranti effect” option3=”Raman effect” option4=”None of the above” correct=”option2″]

Detailed SolutionThe phenomenon of rise in voltage at the receiving end of the open-circuited or lightly loaded line is called the

[amp_mcq option1=”440 V” option2=”11 V” option3=”33 V” option4=”66 V” correct=”option1″]

Detailed SolutionThe underground system cannot be operated above