Electrical Engineering Interview Questions and Answers
Question - 21 : - What do you mean by frantic effect?
Answer - 21 : -
The output voltage is better than the effort voltage or getting end voltage is superior to the sending end voltage.
Question - 22 : - What is meant by insulation voltage in cables?
Answer - 22 : -
It is the possessions of a wire by the good quality of it can withstand the practical voltage without rupturing it is known as insulation level of the wire.
Question - 23 : - State the difference between a four-point starter and three-point stater?
Answer - 23 : -
The shunt association in four-point stater is provided unconnectedly from the line whereas in three-point stater it is associated with a bar which is the negative aspect in three-point stater.
Question - 24 : - What is a unilateral and bilateral circuit?
Answer - 24 : -
A unilateral is a kind of circuit whose properties alter with the course of present flow or the voltage. The properties of a bilateral circuit do not modify with changing the existing direction or bring in voltage.
Question - 25 : - Tell me the maximum power transfer theorem?
Answer - 25 : -
It mentions the state for maximum power move from source to load. It states that n a linear, bilateral network, the utmost power will be transferred from basis to the load when the outside load resistance equals the interior resistance of the source of the circuit.
Question - 26 : - What Is Electric Traction?
Answer - 26 : -
Electric traction means using the electric power for traction system (i.e. for railways, trams, trolleys etc).
Electric traction means use of the electricity for railways, trams, trolleys etc. Now a days, magnetic traction is also used for bullet trains. and basically dc motors are used for electric traction systems.
Question - 27 : - How Can You Startup The 40w Tube Lite With 230v Ac/dc Without Using Any Choke/coil?
Answer - 27 : -
It’s possible by means of Electronic chokes, otherwise it’s not possible to ionize the particles in tube light with normal voltage.
Question - 28 : - What Is “pu” In Electrical Engineering?
Answer - 28 : - Pu stands for per unit and this will be used in single line diagram of power distribution and it is like a huge electrical circuit with no of components (generators, transformers, loads) with different ratings (in MVA and KV). To bring all the ratings into common platform we use pu concept in which, in general largest MVA and KV ratings of the component is considered as base values, then all other component ratings will get back into this basis. Those values are called as pu values.
Question - 29 : - Operation Carried Out In Thermal Power Stations?
Answer - 29 : -
The water is obtained in the boiler and the coal is burnt so that steam is obtained this steam is allowed to hit the turbine , the turbine which is coupled with the generator generates the electricity.
Question - 30 : - Why Link Is Provided In Neutral Of An Ac Circuit And Fuse In Phase Of Ac Circuit?
Answer - 30 : -
Link is provided at a Neutral common point in the circuit from which various connection are taken for the individual control circuit and so it is given in a link form to withstand high Amps. But in the case of Fuse in the Phase of AC circuit it is designed such that the fuse rating is calculated for the particular circuit (i.e load) only.So if any malfunction happen the fuse connected in the particular control circuit alone will blow off.