Underground Cables Interview Questions and Answers: 1. For what purpose metallic sheath is provided in underground cables ? Ans. The metallic sheath is provided around the insulation to protect it…

Performance of Short and Medium Transmission Lines Interview Questions and Answers: 1. What are the factors which govern the performance of a transmission line ? Ans. The factors governing the…

Transmission Line Constants Interview Questions and Answers: 1. Distinguish between ac and dc resistances of a conductor. Why the two differ ? Ans. The resistance offered to dc, by a…

Tariffs and Power Factor Improvement Interview Questions and Answers: 1. What is meant by tariff? Ans. Tariff means the schedule of rates or charges. Tariff, in case of electric supply,…

Power Plants Economics Interview Questions and Answers: 1. State factors on which generating cost depends. Ans. The generating cost per unit (kWh) of energy depends upon the cost covering the…

Cogeneration and Energy Conservation Interview Questions and Answers: 1. What do you mean by word 'cogeneration' ? Ans. Cogeneration is sequential of energy contained in fuel into two or more…

Combined Operation of Power Plants Interview Questions and Answers: 1. Why is it necessary to operate hydro and steam plants in combination ? Ans. It is necessary to operate hydro…

Selection of Power Plant Interview Questions and Answers: 1. Why are diesel power plants rarely used ? Ans. Diesel power plants have limited field of application as emergency power plants…