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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is VCB? where it is installed at SP. What is SP?

1300

HOw can we calculate power factor at HT side.

6 12815

Why all voltage levels are the multiples of 11KV?

KSEB,

10 47308

Can motor act as generator (OR) vice versa? explain how does it do please post the answer technically

GM General Motors,

11 36426

how does electrical train works and what type of motors are used to drive the train? which level of supply voltage is used?

Alstom, Infotech,

22 53460

what is excitation system explain in detail with its working?

Toshiba,

1 6142

What is the difference between circuit and network.

Jadavpur University, Sail, TCS,

15 60409

what is the difference between surge arrestor and surge supressor

1 2198

HOW CAN WE DECIDE THE SUPPLY VOLTAGE FOR MOTOR ACCORDING TO ITS RATING(IF ANYONE KNOWS GIVE IT WITH EXAMPLE AND ITS CALCULATIONS)

1105

what is importance of ka in mccb

ABB,

2 6190

Based on CPI/CGPA they shortlist the candidates & than directly start Interview so there is no Written Exam or GD Only PI.Interview held @ MNNIT , ALLAHABAD On-Campus on 6th,Aug, 2007 & the Questions asked to me by Interview Board ( 4 People) are from HR/SummerTraining/BTP/Subject-core, POWER SYSTEM & MACHINE. time duration of I/V is about 15-20 Minutes. HR- Q.1 Name,hobbies & About family background ? Q2.What u know abt NTPC ?? Q3.Why u want to choose NTPC as ur Carrier's starting i.e power sector not any other Oragnisation or sector ?? Techincal Questions- Q1.What is the reason for transformer Noise ?? Q2.Which material is used for making Transformer oil & How u measure its dielectric strength & Name the test ? Q.3 Which Machine u will prefer 2 use if flammble gases are coming out at a place & why ?? Q4.What is relation b/w Transmission Lines & Communication Lines ? Q5.What is the maximum capacity Synchronus Machine & total powerGeneration in our country ? Q.6 In india Power generation is at 50Hz while in America its 60 hz ,why so ?? Advantage or disadvantage ?? Q.7 Maximum Generation Voltage in india ? Q8. What is the Voltage regulation & why its required n how much is permissible ? & causes of voltage variation ?? Q.9 Why electric shock is feel ?? n in a Electric Train why we didnt feel that ? Q.10 Have u seen/ experience of any power plant/ industry related to the power sector ? so these are the questions which not too diffcult i think was asked to me.

NTPC,

6 8525

what happen if the load connected to the induction motor is taken away? the same question for synchoronous generator in synch i think that the the exitation voltage will appear on the terminal only if so plz answer me

Escorts,

1125

What is the effect of earth capacitance

3 6363

why power generate in 33 kv it will be step down by 11 kv .

5 5722

WHAT IS THE DIFFERENCE BETWEEN AN ACB & mccb 7 WHAT IS THE CRITERIA WHEN TO USE WHICH OF THE TWO

Jk Tyres,

1391


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Un-Answered Questions { Electrical Engineering }

Explain The Application Of Storage Batteries?

251


2- What are the percentages between excitation currents in phase (R, S and T) in ∆ and Ỵ connections in excitation Current test in transformers?

1158


1) What are your personal strength? 2) What are your personal areas of improvement? 3) What are your expectations from from a particular job? 4) what are your carrier objectives?

1644


How many kw will suply from one db

668


why Current is lead 90 degree and voltage is lag 90 degree in a capacitor.? why Current is lag 90 degree and voltage is lead 90 degree in an inductor.?

1303






I'm looking for a softcopy manual set for a Credence ASL- 3000. Anyone know where I can get it?

1139


What is vaccum currcuit breaker.define with cause and where be use it device?

224


what is the difference between RMS & TRUE RMS VOLTAGE

1953


When we use 3 terminal resistor?

210


Why do we will ground the positive terminal in electrostatic precipitator

1233


At what speed an electric car can run with 2 HP motor of weighing 400 kg?

854


in ACB breaker requireding 3200Amps. buscoupler getting OFF mode and again it reset and getting normal position give me a required answer?

1364


Explain cos(theta) and Sin(theta)

1193


Hello sir, pls send me hpcl technical test papers .i am. Appearing for the exam.

1745


What do you mean by pull of electromagnet?

202