THIS is Subodh Bhardwaj --M.Tech-IIT-R/IIM-C--[ 5 TIME'S SINGLE DIGIT RANK IN CSIR/GATE(AIR--1 )/5-TIME'S 99+%ile in CAT-99.98%ILE/99.96%ile-]--UPSC CSE-TWO TIME'S APPEARED IN INTERVIEW--2014/2016.--4-Time's 300+ marks in UPSC-CSE-Optional-[Highest-320+-2018]

The Defence Research and Development Organisation (DRDO) (IAST: Raksā Anūsandhān Evam Vikās Sangaṭhan) (Hindi: रक्षा अनुसंधान एवं विकास संगठन) is the premier agency under the Department of Defence Research and Development in Ministry of Defence of the Government of India, charged with the military's research and development, headquartered in Delhi, India. It was formed in 1958 by the merger of the Technical Development Establishment and the Directorate of Technical Development and Production of the Indian Ordnance Factories with the Defence Science Organisation. Subsequently, Defence Research & Development Service (DRDS) was constituted in 1979 as a service of Group 'A' Officers / Scientists directly under the administrative control of Ministry of Defence.

With a network of 52 laboratories, which are engaged in developing defence technologies covering various fields, like aeronautics, armaments, electronics, land combat engineering, life sciences, materials, missiles, and naval systems, DRDO is India's largest and most diverse research organisation. The organisation includes around 5,000 scientists belonging to the DRDS and about 25,000 other subordinate scientific, technical and supporting personnel.

The DRDO was established in 1958 by amalgamating the Defence Science Organisation and some of the technical development establishments. A separate Department of Defence Research and Development was formed in 1980 which later on administered DRDO and its 50 laboratories/establishments. Most of the time the Defence Research Development Organisation was treated as if it was a vendor and the Army Headquarters or the Air Headquarters were the customers. Because the Army and the Air Force themselves did not have any design or construction responsibility, they tended to treat the designer or Indian industry at par with their corresponding designer in the world market. If they could get a MiG-21 from the world market, they wanted a MiG-21 from DRDO.

DRDO started its first major project in surface-to-air missiles (SAM) known as Project Indigo in the 1960s. Indigo was discontinued in later years without achieving full success. Project Indigo led to Project Devil, along with Project Valiant, to develop short-range SAM and ICBM in the 1970s. Project Devil itself led to the later development of the Prithvi missile under the Integrated Guided Missile Development Programme (IGMDP) in the 1980s. IGMDP was an Indian Ministry of Defence programme between the early 1980s and 2007 for the development of a comprehensive range of missiles, including the Agni missile, Prithvi ballistic missile, Akash missile, Trishul missile and Nag Missile. In 2010, defence minister A. K. Antony ordered the restructuring of the DRDO to give 'a major boost to defence research in the country and to ensure effective participation of the private sector in defence technology'. The key measures to make DRDO effective in its functioning include the establishment of a Defence Technology Commission with the defence minister as its chairman.[8][9] The programmes which were largely managed by DRDO have seen considerable success with many of the systems seeing rapid deployment as well as yielding significant technological benefits. Since its establishment, DRDO has created other major systems and critical technologies such as aircraft avionics, UAVs, small arms, artillery systems, EW Systems, tanks and armoured vehicles, sonar systems, command and control systems and missile systems.

ANKIT

BRANCH : CHEMISTRY

INTERVIEW MARKS : XYZ

Interview took place at drdo RAC (delhi) on february 2020 ,after gate examination. I had to wait for 4-5 hr before my turn arrived. The interview board which i got had to interview 14-15 candidates on that day.There were 4-5 boards overall.Each interview lasted for 30-40 min approx .There were 5 members in the board.I entered the hall :

member 1 : come in ANKIT , sit comfortably .

me : sat down with little bit nervousness.

member 1 : are you nervous ?

me : yes sir a little bit.

member 1 : why do you want to join drdo ?

me : told

member1 : so you graduated in 2019 , what was your gate score and in which subject you scored the most?

me: told

member1 : draw M.cycle and develop its efficiency formula.

me : i drew the graph and corrected him that it should be COP in this case .

member 1: which is the most commonly used MOT and why ?

me : told

member 1 :write its formula .

me : wrote.(took a while, but answered correctly)

member 1 : what is ODP ?

me: answered

member 2 : what do you mean by quality control?

me: answered.

member 2 :what is quality control cycle?

me:answered

member 2 : what type of gear system is used in scooty?

me: answered .

member 3: what is a hard spring?

me: not able to answer (tried but in the wrong direction)

member 3: asked questions related to my final year project

me: I was able to answer most of the questions (this member was very intelligent, he caught the only weak point in my project)

member 4: write navier stokes equation ?

me: wrote

member 4 : derive it?

me : took a while but derived finally

member 4 : what causes pressure drop in flowing fluid across a tube?

me : told

member 5 : asked some question about screw jack ?

me : i didn't read about screw jack so was not able to answer.

member 5 : what is the mechanism behind the key joint?

me: i explained how the force is transmitted due to the shear resistance of the key but he kept asking about the name of mechanism which i didn't knew nor till date have i.

member 5 : draw transmission curve of spring ?

me : drew

NOTE : two of the members were drilling me ,they were not convinced by mine explanations (although answers were to the point and also i strictly firmed to mine answers which seemed to annoy them) , but 2 of the other members were very much impressed by me .

RESULT : NOT-selected.

ADVICE : It is a pure technical interview which doesn't require any seperate preparation as you have already read for the written part , just keep your concept crystal clear knowing the basic of everything you learn.

Name- Vikas 

Branch- CHEMISTRY

Date of Interview- 2018

Duration- 50 min

Q.1. Briefly Indroduce yourself ?

Q.2. Tell us something about your college ?

Q.3. Why did you left your job ? Why GATE ? DO you appeared in ONGC ? What is your performance in ONGC ?

Q.4. Why do you want to join DRDO ?

Q.5. What do you understand by CHEMISTRY ?

Q.6. Some example of mechatronics application ?

Q.7. What are your favourite subject ?

Q.8. Derive the formula of HEAT CAPACITY- ?

Q.9. What are the type of maintenance ? Which maintenance is most important ?

Q.10. What are the different type of steel ? What is alloyed steel ? What is mild steel ?

Q.11. Melting point of Iron ?

Q.12. Is mild steel and low Carbon steel are same ?

Q. 13. What is mahine tool ?

Q. 14. Difference between shaper and milling machine ?

Q.15. What do you understand by 2 and 1/2 axis machine ?

Q.16. What will happen if you turn a job at low speed and high depth of cut on lathe ?

Q.17. What is the difference between CNG and convention milling P-? Two major difference between them ?

Q.18. Draw triaxial state of stress on an element ?

Q.19. Draw the Mohr circle and specify all the parameters ?

Q.20. What are different theories of failure ?

Q.21. Which therory is used for brittle material ?

Q.22. What is Von- Mises Theory ? Write the formula ?

Q.23. Draw a curved surface and show the flow separation velocity profile over the surface ?

Q. 24. Where heat transfer will be maximum ?

Q. 25. Take a circular pipe and draw the velocity profile ?

Q. 26. How pressure will vary inside the pipe at a particular cross section ?

Q. 27. Draw the variation of pressue along the length of pipe ?

Q. 28. What will be pressure profile inside the developing region ?

Q.29. What will be the value of pressue read by pressue gauge inside the developing region compared to fully developed region ?

Q.30. Draw the temperature profile inside the pipe at 4 different sections along the length of the pipe, if pipe is subjected to constant heat flux condition ?

Q.31. Draw the same if pipe is subjected to constant temperature condition ?

Q.32. What is 2 major difference between lathe and shaper ?

Q.33. What was your learning during your job ?

Q.34. Which steps you will take to minimize the accidents in industry ?

Q.35. What are the steps to report an accident in industry ?

Q.36. What is the difference between shaper and planner - ?

Q.37. What is the basic purpose of maintenance ?

Q.38. What is corrective maintenance ?

Q.39. Write the equation of mass distribution inside a Na ?

Q.40 What is digital manufacturing ?

Q.41. Draw the T-s diagram of brayton cycle and Explain ? Explain the concept of regeneration ?

Q.42. Draw the bell M. cycle on T-s scale and explain ?

Q.43. Anything you would like to ask ?