Interference in Telecommunication Circuit in Electric Traction: In all traction systems track is used as a return path for the current. Some part of the current flows through the track…
Automatic Block Signalling System in Railways: The purpose of automatic block signalling system in railways is to keep trains apart but permit spacing as close as safety permits. For optimum…
Systems of Track Electrification AC Electrification System: As even in single phase electrification, the substations are necessarily required to keep the voltage drop within permissible limits. The type of substations…
Overhead Construction for Tramways, Trolley Buses and Railways: As we know already that, for trams, trolley buses and for railways operating at 1,500 V and above overhead contact wire is…
Electronics Engineering Multiple Choice Questions and Answers (MCQs) Part 1: 1. Which of the following statements is correct regarding resistance ? (a) The resistance of a conductor is the hindrance…
Electrical Power Engineering Multiple Choice Questions and Answers (MCQs) Part 10: 452. .......... is a process that is generally used in winter air-conditioning. (a) Humidification (b) Dehumidification (c) Heating and…
Power System Earthing Interview Questions and Answers: 1. What is difference between system earthing and equipment earthing ? Ans. System earthing deals with earthing of the system neutral to ensure…
High Voltage AC Transmission Interview Questions and Answers: 1. What are the transmission voltages that are used in India ? Ans. 33, 66, 110, 132, 220 and 400 kV. 765/800…
