Bhabha Atomic Research Centre ( BARC )

Bhabha Atomic Research Centre ( BARC ) Interview Questions and Tips

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1

Bhabha Atomic Research Centre ( BARC ) Na interview

, 10.8k views
Anne Siva RamaExperiencedSelected
Application
I Applied for job through Referral for Na role at Bhabha Atomic Research Centre ( BARC )
Interview Process
Technical Interview
Round 1

Technical Interview

Interview Questions
  • Question 1: which ARM processor used?
  • Question 2: what is the main difference between ARM and ordinary controller?
  • Question 3: main differnce between RISC and CISC?
  • Question 4: explain about the pipeline structure in ARM?
  • Question 5: . draw the 3stage pipeline of ARM controller and how each instruction get executed in one cycle?
  • Question 6: What is the main aim of RISC other than fast exectuion?
  • Question 7: what do u mean by POWER PC?
  • Question 8: ARM is having how many modes of operation?
  • Question 9: whether 16 bit is best or 32 bit mode is best? if so why it is best?
  • Question 10: main advantage of 16 bit compare to 32 bit after that main disadvantage?
  • Question 11: which CPLD u have used?
  • Question 12: main difference between CPLD and FPGA other than large macro cells advantage of FPGA?
  • Question 13: what RTOS used? RTX-51 tiny or full.
  • Question 14: RTOS significance and when u have to go for RTOS?
  • Question 15: when do u need semaphores and what kind of semaphores RTX-51 provided?
  • Question 16: write a code for mutex impl in RTX-51?
  • Question 17: How the mail boxes implemented in RTX-51, capacity of mail box and process used for sending mail ?
  • Question 18: what kernel consists?
  • Question 19: what kind of scheduling used and when can u configure scheduling time?
  • Question 20: two fast tasks having same priority how scheduling acts that time?
  • Question 21: typical scheduling time u have provided in ur project?
  • Question 22: synthesiser means what?
  • Question 23: how can u multiply the frequency not up convertion by mixer only multiplier?
  • Question 24: i drew the PLL multiplier mode of operation
  • Question 25: what is the output of the phase detector?
  • Question 26: why LPF is required in between PD and VCO?
  • Question 27: how phase synchronisation can lead to frequency stabilization?
  • Question 28: how many types of frquency dividers are there?
  • Question 29: what DDS chip is used in ur project? how it works?
  • Question 30: what is the memory capacity (ROM) in DDS chip for frequency map table?
  • Question 31: ok now forget about ur experience, can u design a amplifier with opamp.... after design can u prove it for gain relation?
  • Question 32: how virtual ground will come in picture between two terminals even then high input impedance?
  • Question 33: what are the typical values of resistors for gain of 10?
  • Question 34: whats the problem with low resistances?
  • Question 35: whats the problem with high resistances like 10M ohms and 100Mohms?
  • Question 36: what is the typical output sinking current of 741 Opamp?
  • Question 37: what is the limiting factor of low resistances?
  • Question 38: if i remove feedback resistor and put a capacitor there what happens how cicuit behaves?
  • Question 39: for a step input what is the output expected and why is it so? prove it with mathematics?
  • Question 40: what will happen if u connect a capacitor with ideal constant current source? what happens when resistor is there in between? how long it will charge?
  • Question 41: what do u mean by capacity? for 10micro farad capacitor what is the capacity?
  • Question 42: if u know the capacity how much is the energy? 50. what kind of energy?
  • Question 43: and if i connect a resistor and ground through a charged capacitor what j=kind of energy resistor consume?
  • Question 44: three not gates cascaded and first gate coneected to a 5v supply through a resistor what is the output?
  • Question 45: what is the frquency at which rate it oscillates?
  • Question 46: how will u control a 230V operated tube light through micro controller?
  • Question 47: what relay contains? how much power relay consumes?
  • Question 48: how much micro controller port can drive and sink?
  • Question 49: what buffer contains?
  • Question 50: what are the drivers available?
  • Question 51: what are the buffers used 74 series?
  • Question 52: how many TTL configurations are there?
  • Question 53: draw the totem pole TTL output configuration?
  • Question 54: what is the typical fan out of TTL?
  • Question 55: fan out is specified for driving capability then what happens in zero output conditions?
  • Question 56: if i use more than specified fan out what happens for 1 output and zero output? for zero out put what are the adverse effects?
  • Question 57: which spec will call for transistor sinking current?
  • Question 58: what happens if u allow more than specified sink current?
  • Question 59: what kind of malfunction u expect if transistor heat properly matched and is cooled with extra fan?
  • Question 60: what are the steps followed for the IV&V?
  • Question 61: what is the difference between V&V?
  • Question 62: when SRS come in to picture? either in Verification part or validation part? how do u validate?
  • Question 63: SRS and SDD how they are connceted?
  • Question 64: what kind of report do u prepare after completion of IV&V?
  • Question 65: have u done any root cause analysis?
  • Question 66: what kind of testing u do?
  • Question 67: what do u mean by regression testing?
  • Question 68: for black box testing you consider SRS or SDD?
  • Question 69: how many universities offers this course? what course material they have given to u? how much is the fees for your course? how u have studied with out classes? what are the labs do u have in each year?
Interview Experience
Actually my interview duration was about 1hour 45 minutes.

In between I went wrong with sudden analog questions it took some time to recover (only 15 minutes). I don't like this analog subject but what to do they did not asked my favourite subjects they them self started.

but later I could recover and answer well in remaining topics but I feel damage is damage. They did not give medical slip to me that too after discussing 10 minutes.

Bad luck but it was nice experience, all the best to all people who got selected.
Interview Tips
Being an experienced person they asked me about my working level knowledge.
They have not left the analog electronics part.
Skills

Skills Tested

  • Analog
  • ADC
  • Power
  • Microprocessor
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2

Bhabha Atomic Research Centre ( BARC ) Scientific officer interview

, 9.5k views
Venkatesh KExperiencedSelected
Application
I Applied for job through Personal Contacts for Scientific officer role at Bhabha Atomic Research Centre ( BARC )
Interview Process
Test Technical Interview
Round 1

Test

Interview Experience
For Direct Interview - Should have min GATE cutoff score decided by BARC (Changes every year).
Written test for ones who did not write GATE or did not have enough GATE score.
Round 2

Technical Interview

Interview Questions
  • Question 1: What is hagen poiseuille equation and when can it be used
  • Question 2: What is bernoulli's equation and its limitations.
  • Question 3: A logical question regarding fluid flow between two tanks placed at different heights.
  • Question 4: Pump characteristic curves and the relations
  • Question 5: Different types of valves for fluid flow control
  • Question 6: Heat transfer basic questions
  • Question 7: Type of heat exchangers and their selection criteria
  • Question 8: Design methodology for heat exchnager
  • Question 9: Co-current and counter current heat exchanger temperature profiles
  • Question 10: Velocity profiles inside pipeline and boundary layer formations
  • Question 11: Various phases in heating liquid
  • Question 12: Diffusion basics
  • Question 13: Mccabe Thiele method and its assumptions
  • Question 14: Cooling towers priciple
  • Question 15: Gas absorption and Stripping profiles
  • Question 16: What is a daily used CSTR type equipment in kitchen
Interview Experience
As its been more than 6 years that I had gone through this interview, the above were some of the questions I could recall. The interview went for around 50 min. The committee firstly asks our favorite 3-4 subjects. I chose Fluid mechanics(FM), Heat Transfer(HT), Mass Transfer(MTO), Thermodynamics and Chemical Reaction Engg(CRE) in the given order f preference. The committee would normally have 5-6 members. First 15 minutes the questions were regarding FM, then 15 minutes regarding HT and further 10 min for MTO, last 10 min thermodynamics and CRE which I totally screwed up. The weightage lies with the performance in first three subjects you chose as favorite. The committee is really friendly.They do not pressurize nor try to confuse you. They always give hints to go in the right path. I have stumbled alot in between, but the committee was quite supportive in getting answers from me. After the interview was over, I came out and in 2 min, the attender came out and gave me the medical examination chit. At that time (2009), getting a medical slip gives 90% chances of getting the job. Presently I think getting medical slip gives 50% chances of getting the job.
Interview Tips
Don't think that your academic history would impress them. You selection totally is based on your performance in the interview. Be thorough with the basics of all the core subjects and wisely choose the fav subjects. Always try to understand the hints given by the committee. All they expect is that if the candidate can relate the theory to practical or not. And if you have zero idea about a question do not hesitate to confront rather than blabbering something wrong.
Skills

Skills Tested

  • Knowledge in Core subjects
Skill Tips
Just brush up the basics. No need to remember all the formulas and equations. I just read Mccabe Smith before the interview.
Resources

Preparation materials

Books
  • MCcabe smith,
  • Any Gate Preperation Material,
General Tips
Communication skills do not matter in this interview.
Motivation for applying
Scope for exploring new fields, salary Package
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3

Bhabha Atomic Research Centre ( BARC ) interview

, 8.7k views
AnonymousFresherSelected
Application
I was interviewed on-campus for Bhabha Atomic Research Centre ( BARC )
Interview Process
Test Technical Interview
Round 1

Test

Interview Experience
Dear Juniors, I would like to share my feelings and interview experience so that u may be benefited from this. Gate 2013 turned to be so easy, so that anyone can easily get rank around 500 without any preparation. But Inspite of studying at made easy I get 1207 Rank. I was so depressed that I cant express in words. I was able to score under 50 rank but the result was very bad. BARC OCES/DGFS 2013 Program: Gate cut off was gate score 574 around 1400 rank and I was called for Interview.
Round 2

Technical Interview

Interview Questions
  • Question 1: where do we us transformer
  • Question 2: do we use transformer in our homes
  • Question 3: What is the o/p voltage of mobile charger.Can u calculate the rating of transformer used in Mobile charger.calculate it taking o/p voltage as 3.5 V?
  • Question 4: What is SCR n what protection we use for SCR?
  • Question 5: How 3-phase magnetic field is produced and also derive taht its magnitude is constant?
  • Question 6: How do we control frequency and voltage ?
  • Question 7: what is ferranti effect
  • Question 8: what happen to Generator and Motor during ferranti effect and also to transmission line?
  • Question 9: what is armature reaction and interpole winding.why we use interpole winding?
  • Question 10: what is the benefits of armature reaction?
  • Question 11: How torque is produced in all type of M/c.{DC,Synch,Induc} ?
  • Question 12: Principle of operation of induction m/c?
  • Question 13: slip and speed characteristic of Induction M/c?
  • Question 14: what are classification of DC M/c ? 15. speed torque characteristic of all type of DC M/c ?
  • Question 15: Importance of Power angle?
  • Question 16: How we can reduce harmonics? (all type of winding done to reduce harmonic)
  • Question 17: A ckt was given (was a chopper ckt).and said that if we give the o/p of this ckt to a transformer,what will be the o/p waveform?
  • Question 18: what is hysteresis and eddy current loss ? ld is made sinusoidal in cylindrical and salient pole m/c? 26. Draw 3-phase AC waveform. 27. Which motor r we using in ceiling fan and how it works? 28. The very nxt ques was that if there is no capacitor provided in ceiling fan, can u start it? 29. what is two field revolving theory? 30. what is the reason of production of torque in synchronous M/c? 31. If we remove the load, what will be happen to the torque of sync m/c? .
  • Question 19: what are the condition to be satisfied for production of torque in any m/c
  • Question 20: what is two field revolving theory?
  • Question 21: what is the reason of production of torque in synchronous M/c?
  • Question 22: Basic of stability of M/c and why for transient stability load angle can go beyond 90 degree?
  • Question 23: Basic of stability of M/c and why for transient stability load angle can go beyond 90 degree? 33. prove W=1/2*c*v^2 .
  • Question 24: 1-2 basic n/w ckt. with inductor and capacitor.they also used tank ckt.they made some changes and ask for change in current in a particular branch.
Interview Experience
Beside these some conditional and practical questions were there.I don't remember all the questions. around 45-50 questions was asked to me in 1 hr 40 min interview and i answered almost 45 of them. 2-3 question they give me hint.. They asked me to wait outside. After 2 min they called me and give the white slip and said that u have a very high probability of selection. I more thing I want to say that getting white slip doesn't ensure ur selection bcz in 2013 almost 200-250 student get the slip and only 10 are selected at BARC Mumbai. overall selection including IGCAR, RRCAT, NFC, VECC, BRIT and all through OCES 2013 program is 56 in electrical engineering.
Interview Tips
I hope this will help u in future...wish u all d best ...!!!!
Skills

Skills Tested

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    4

    Bhabha Atomic Research Centre ( BARC ) Na interview

    , 8.4k views
    ShrlyasExperiencedSelected
    Application
    I Applied for job through Walk-in for Na role at Bhabha Atomic Research Centre ( BARC )
    Interview Process
    Technical Interview
    Round 1

    Technical Interview

    Interview Questions
    • Question 1: Differentiator circuit using opamp?(circuit diag,waveform,explaination & if..then sort of a Questions were asked)
    • Question 2: What is virtual ground?
    • Question 3: Draw a circuit to implement V=V1+V2?
    • Question 4: An opamp configuration was given with -ve feedback.In the feedback path two diodes were connected in parallel with reverse polarity.A triangular wave was given at the i/p . Question was explain the circuit with o/p waveform? Counter questions were also asked based on the solution given.
    • Question 5: what is backend technology? VLSI uses backend/frontend?
    • Question 6: what is DRC checker?
    • Question 7: explain CMOS fabrication steps?
    • Question 8: explain CMOS fabrication steps?
    • Question 9: what type of etching is used during photolithography process?
    • Question 10: what does 1nm technology specify? Few other related stuffs.
    • Question 11: Draw 4-bit ring counter and explain its working with waveforms?(
    • Question 12: Draw a BJT circuit which acts as a switch? why is Vce(sat)=0.2V? what will happen if resistor is connected in between emitter & ground point & many other related Q?
    • Question 13: Draw circuit diagram of a tubelight? How is it functioning?
    • Question 14: How does your fan regulator works? What is being changed? How does it control the fan speed?
    • Question 15: Explain the pts in an electrical socket? What is shown in the CRO if probes of the CRO are inserted in the two live wires? What if one is connected to earth?
    • Question 16: How does a TESTER work? Explain its general operation? Will the LED glow if the end is contacted wearing ur slippers?
    • Question 17: An electrician who comes to do ne electric work always has a bulb & a socket in his kit.when he connects one end of the wire to the line & other to neutral wht happens? will the bulb glow? what happens when it is connceted betwen line & earth? If the bulb glows brightly what does he understands? If it glows dim what he concludes?
    Interview Experience
    Interview date: 25th June
    Location: BARC Mumbai
    Duration:1.30hrs
    Status: Not Qualified
    Interview started with a brief discussion on my BE project(duration:5-10min appx)
    5 fav sub:
    1.Analog integrated circuits
    2.VLSI
    3.Digital design
    4.Semiconductor Devices
    5.Power Electronics
    Interview Tips
    For everything u write in paper counter questions will always b asked. So b strong with your basics & b clear with what you are putting down.
    My suggestion whatever subject u do it deeply.Clear your Basics as much as u can. If & else type question will always be asked whenever you ans to a Question so b prepared.
    Think from a practical application point of view too.
    Skills

    Skills Tested

    • Power Electronics
    • Semiconducto
    • Digital Design
    • VLSI
    • Analog Integrated Circuits
    General Tips
    For everything u write in paper counter questions will always b asked. So b strong with your basics & b clear with what you are putting down.<br />
    My suggestion whatever subject u do it deeply.Clear your Basics as much as u can. If & else type question will always be asked whenever you ans to a Question so b prepared.<br />
    Think from a practical application point of view too.
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    5

    Bhabha Atomic Research Centre ( BARC ) Na interview

    , 8.4k views
    Raghavan KExperiencedSelected
    Application
    I Applied for job through Walk-in for Na role at Bhabha Atomic Research Centre ( BARC )
    Interview Process
    Technical Interview
    Round 1

    Technical Interview

    Interview Questions
    • Question 1: how LED works?
    • Question 2: how do u drive the LEDs with your 'block'?
    • Question 3: do u need any extra circuit to drive them if so design that?
    • Question 4: how much current does a typical gate o/p be?
    • Question 5: some typical questions on TTL logic..voltage levels..fan-in..fan-out and so on.
    • Question 6: how do u get the power supply for your gate? then that question was stretched to topics like a/c generation conversion to dc.
    • Question 7: rectification..regulation..zener diode construction and working principles.
    • Question 8: then they inter-related concept like application of feedback in voltage regulators for all these i was asked to draw the block diagrams and explanation to their level of satisfaction.
    • Question 9: they came up with some typical questions on op-amps like pin-diagram of 741.
    • Question 10: design voltage amplifier of a particular gain with an op-amp..inv. and non-inv. config..explain the circuit..how do u get that gain?
    • Question 11: how can u apply KCL directly at op-amp i/p terminal?
    • Question 12: ideal op-amp chs..why op-amps are not ideal ?
    • Question 13: DC defects of op-amp in a voltage amp. circuit, what happens if the connections to pins 2 & 3 are exchanged? draw the o/p?
    • Question 14: power supply voltage range..saturation conditions, range of resistances in feedback path and i/p terminals etc.
    • Question 15: lpf circuit with op-amp? explain..? draw the o/p for some typical i/ps?
    • Question 16: lpf with passive components?
    • Question 17: lpf with passive components?
    • Question 18: then finally an irregular signal was shown suppose it is the voltage across a capacitor/ inductor derive and plot the current waveform in each case.
    • Question 19: a few questions inter-relating control systems, analog like feedback concepts feedback in op-amps +ve & -ve feedback etc.,
    Interview Experience
    My interview panel consisted of 5 people but among them one person was only checking my certificates and all remaining 4 persons interacted more.
    Prior to attending the interview, I got admission in IIT-KGP but it was not there in the sponsored courses list. So, my first question was on that IIT or BARC?
    Next, they asked me to tell them If I knew what type of questions were being asked by the panel to the previous interviewees. This was a shocker for me, I said I remember one they asked me to explain the question and solution which I did.
    Next, I was given a block diagram i/p is a clock o/p should b "00","01","11","10"..I was asked to design that 'block’ I instantly said that they made me derive the solution step by step.
    Then, they asked me to pen down 5 of my fav subjects..
    I said..
    (1)Networks
    (2)EDC
    (3)Digital Electronics & microprocessor
    (4)Analog Electronics and
    (5)Control Systems..

    I was asked to leave after that I went out and was about to leave then i was asked to wait for 5 minute later, i was given the medical slip. Thank God! felt really good can't describe.
    Skills

    Skills Tested

    • Control System
    • Analog Electronics
    • Microprocessor
    • Digital Electronics
    • EDC
    • Networks
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    6

    Bhabha Atomic Research Centre ( BARC ) Na interview

    , 8k views
    Phani SriramExperiencedSelected
    Application
    I Applied for job through Walk-in for Na role at Bhabha Atomic Research Centre ( BARC )
    Interview Process
    Technical Interview
    Round 1

    Technical Interview

    Interview Questions
    • Question 1: Ok write TF of PID controller and apply it to plant process.
    • Question 2: :- Do we require H(S) in PID controlled control system.
    • Question 3: But we should have always unity feedback and not H(S). then why use proportional.
    • Question 4: Why not use only proportional. Draw that offset error
    • Question 5: Draw an integral controller
    • Question 6: Say in IT banking industry you must have come across large numbers that u need to store; how will store that numbers
    • Question 7: Say we have a number 1.00123456788 how will we store.
    • Question 8: Write the program for a COBOL program for above question.
    • Question 9: 1.00123456788 how will we store. How in Double floating precision format A:- I said I am not aware
    • Question 10: Write the number in EBCDIC format or have you heard of IEEE standard
    • Question 11: Draw an opamp with gain of 10. We want a positive gain
    • Question 12: Derive the gain equation
    • Question 13: where is the closed path for current through flow in op-amp
    • Question 14: Now if we remove the ideal op-amp of gain infinity and put another opamp of gain 100 ; what will be the change in output
    • Question 15: Gave couple of network questions
    Interview Experience
    Number of Panel Members :- 6
    interview lasted 1 hr 10 mins..

    Here goes the interview :-
    PM1:- Passout of 2007, what were you doing after that ??
    A:- Joined IT industry
    PM1 Then why did you left?
    A:- I want to work in core field
    PM1:- Then why join IT
    A:-They have told me that they will give core profile since they have got one in Railway signalling system. But since they haven’t provided any such profile; I resigned and given GATE to pursue M.Tech
    ( It was here that I think there was some mis-communication ; a very bad one that may have cost me my interview. One of panel members was convinced that I had worked in Signalling industry and started asking industry components as we will see later….)
    PM1:- So it appear you are interested in signal; so we will ask signals and systems whether you like it or not? So applied for M.Tech?
    A:- Yes IIT-B(RA); DIAT Pune
    PM1:- Write your subjects of interest
    EDC;
    Network;
    Digital;
    Control;
    Analog

    PM1: So have you ever thought of entrepreneurship; setting up a company and taking the signal system orders from railways; and if IT is paying so much it is very less as compared to BARC…and you people know how we answer such questions …)
    Skills

    Skills Tested

    • Analog
    • Control System
    • Difital Communication
    • Network
    • EDC
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    7

    Bhabha Atomic Research Centre ( BARC ) Na interview

    , 7.8k views
    ManuExperiencedSelected
    Application
    I Applied for job through Walk-in for Na role at Bhabha Atomic Research Centre ( BARC )
    Interview Process
    Technical Interview
    Round 1

    Technical Interview

    Interview Questions
    • Question 1: Draw a inverting amplifier with gain100.
    • Question 2: Draw a non-inverting amplifier with gain100.
    • Question 3: Draw a differential amplifier with gain100.
    • Question 4: Suppose CMMR of the above differential amplifier is 100 dB then find common mode gain.
    • Question 5: Find the exact output of a differential amplifier Ans: Vo= Ac(V1-V2) + Ad[(V1+V2)/2]
    • Question 6: Find the common mode v/g of the above differential amplifier.
    • Question 7: Consider a 10 V dc connected externally b/w inverting and non-inverting terminals of an Op-Amp and a 2.5 V dc connected from NI terminal to GND. Now find the O/p voltage,Common mode voltage and difference mode voltage.
    • Question 8: What is the input impedence of and inverting amplifier?
    • Question 9: Draw an arrangement to indicate the Selected pin index and output state of a MUX.
    • Question 10: Generate clock signal for a watch (ie., of 1 Hz freq)
    • Question 11: Generate a 120v 60Hz clock signal ( It can be generated using some High tension transformer and related circuits, but I don't know it)
    • Question 12: How a stable clock can be generated (using Crystal oscillator).
    • Question 13: Frequency of oscillation of crystal oscillator.
    • Question 14: What is the practical significance of Q-factor.
    • Question 15: Draw the graph for the Q-factor of a series R-L-C circuit.
    • Question 16: What does it really mean by "Increase in" or "Decrease in" Q-factor a circuit?
    • Question 17: We have got 3 identical band limited signals with us...we are required to send them one after the other allow'n a specfic delay between each of them. Also we have to code these signal before transmitting
    • Question 18: What all circuits should be used before an ADC?
    Interview Experience
    They asked me to tell 5 favourite subjects on which I told:
    1) Linear Integrated Circuits.
    2) Control Systems.
    3) Signals And Systems.
    4) Digital Electronics.

    What all ckts should be used before an ADC?
    they didn't allow me to tell my 5th subject and told me tat 4 subjects are enough now
    Skills

    Skills Tested

    • Digital Electronics
    • Signals And Systems
    • Control System
    • Linear Integrated Circuits
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    8

    Bhabha Atomic Research Centre ( BARC ) Na interview

    , 7.7k views
    SandhyaExperiencedSelected
    Application
    I Applied for job through Walk-in for Na role at Bhabha Atomic Research Centre ( BARC )
    Interview Process
    Technical Interview
    Round 1

    Technical Interview

    Interview Questions
    • Question 1: Analog. I was asked to draw a basic CE amplifier and asked the function of all the capacitors I had drawn coupling bypass.
    • Question 2: Then was asked to explain how i can say emitter terminal is common when Re is connected.
    • Question 3: I was asked the gain of the amplifier i had made also was then asked why potential divider biasing
    • Question 4: what is Q point draw the load line explain the characteristics How do you get the various regions.
    • Question 5: Then they proceeded to Opamps and spent a lot of time on it. was asked to draw basic opamp amplifier, what is gain, derive it.
    • Question 6: What is virtual ground. Can you prove it that both are at same potential.
    • Question 7: one of the members them gave a problem on opamp to find output when i/p and gain given one more on cmrr concept.
    • Question 8: Then proceeded to a precision rectifier.
    • Question 9: The interview continued on the same lines all basics of diodes, a problem on Rs of a diode.
    Interview Experience
    One of the panel members asked me to hand over my marksheets so he could have a look and also took the project report i was carrying. after the initial enquiries background how was the written test etc. they asked Me to write down 5 subjects of My interest.

    One of the Members then started with Analog.

    in digital was asked to design a counter and so forth.
    the interviewers r very helpful and will provide ample hints, they'll literally get you to the ans. I got nervous after some 50 ins into the interview and was offered water and tea. :)

    anyway towards the end...final half hour questions focussed on the project and power electronics.

    anyway towards the end...final half hour questions focussed on the project and power electronics.

    I couldn’t help but admire the people sitting on the opposite side
    thats all i guess.. the interview lasted for 1 hr 30 mins approx..

    After the interview was asked to wait outside for 5 minutes I was stuffing my marksheets and report in my bag hastily and was preparing to leave, when a ma'am came and gave me the medical slip....was on 7th heaven :) looking forward to joining DAE.
    Skills

    Skills Tested

    • ADC
    • Analog Communications
    Read Full post...
    9

    Bhabha Atomic Research Centre ( BARC ) Na interview

    , 7.8k views
    Abdullah AbdurrehmaanExperiencedSelected
    Application
    I Applied for job through Walk-in for Na role at Bhabha Atomic Research Centre ( BARC )
    Interview Process
    Technical Interview
    Round 1

    Technical Interview

    Interview Questions
    • Question 1: They started with some simple circuit.
    • Question 2: Questions on integrator then drawbacks of simple integrator.
    • Question 3: then practical integrator, what if constant current is used.
    • Question 4: drawing frequency response, pole zero plot, then given some input signal draw output with different possibilities, till i started commenting.
    • Question 5: Then they gave me some pulse and asked me to design digital circuit to expand it 10 times. then they asked the alternate methods and lots of counter questions.
    • Question 6: Then on transistors, all configurations of CE amplifier, effect of resistance Re, on frequency, gain, stability etc.
    • Question 7: Then on specification sheet of BJT, for such condition what parameter come into picture, ( they took 15min for gain bandwidth product).
    • Question 8: They asked me to draw 3 inverters connected in loop(i could recognise it as ring oscillator), the output of circuit frequency , drawbacks & uses.
    • Question 9: Then they asked about oxidation processes, and what if we want more thick oxide layer.
    • Question 10: Indirect questions on advantages of Modulation, in wired communication & wireless, etc.
    • Question 11: Few of them were highly impressed and they appreciated that i remembered lot of things even after 2 yrs. I told them that i used to help my juniors by solving their doubts.
    Interview Experience
    I have two years of experience in R&D, they asked me related to that & argued for around 15min, why i want to quit.
    They ask me subjects i remember,
    1. Op-amp,
    2. Digital
    3. EDC,
    4. VLSI
    5. Communication

    For questions i was not confident, i simply answered, that i have not come across it, or i have no idea about it. I got the medical slip.
    Interview Tips
    so be honest, do comment atleast if it goes out of reach, but no silly comments & stick to basics.

    I got the medical slip.
    Skills

    Skills Tested

    • Communication
    • VLSI
    • EDC
    • Digital Communications
    • Op-amp
    General Tips
    be honest, do comment atleast if it goes out of reach, but no silly comments & stick to basics.<br />
    <br />
    I got the medical slip.
    Read Full post...
    10

    Bhabha Atomic Research Centre ( BARC ) Na interview

    , 7.7k views
    Hari Krishna BoyapatiExperiencedSelected
    Application
    I Applied for job through Walk-in for Na role at Bhabha Atomic Research Centre ( BARC )
    Interview Process
    Technical Interview
    Round 1

    Technical Interview

    Interview Questions
    • Question 1: They started with general questions like- when you came & where were u staying. They then asked me to say the FIVE subjects in which I feel comfortable.
    • Question 2: Starting with Digital(my choice)-What is fanout and fanin ?
    • Question 3: what is the TTL typical fanout?
    • Question 4: Then they asked me to draw totempole circuit.
    • Question 5: what is the difference between synchronous and ripple counter ..?
    • Question 6: where synchronous circuits are used and where asynchronous are used?
    • Question 7: what is the advantage of synchronous than asynchronous?
    • Question 8: Moving on to EDC(my choice)- How LED emits light ?
    • Question 9: Can you design a LED controlled by a switch with transistors?
    • Question 10: Moving to 555 timer and oscillator basics- > Draw equvelent circuitt of opamp.
    • Question 11: They gave a problem on opamp and asked me to find out gain?
    • Question 12: Moving on to control -> What is the order of the system?
    • Question 13: design a electronic circuit for given transfer function
    • Question 14: impulse response and step response of system
    • Question 15: draw the bode plot for given transfer function?
    • Question 16: Lastly one design problem -> they drew two pulses and asked me-> How will you findout the time difference between pulses?
    Interview Experience
    They asked me for my 5 favourite subjects.
    I listed:
    1.microprocessors
    2.digital electronics
    3.communication
    4.elec devices.
    5.control systems

    my interview was of about one and half an hour ........in between if you don't know the answer they will give some clues....finally i did not get a medical slip........on that day two persons were given medical slips.....if we get the medical slip we are selected.
    Interview Tips
    ALL THE BEST FOR ALL....PREPARE WELL AND make opamps as one of your fav subject..

    Skills

    Skills Tested

    • Control System
    • Electronic devices
    • Communication
    • Digital Electronics
    • Microprocessor
    Skill Tips
    Make op-amp as your favourite subject.<br />
    Read Full post...
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