Tuesday, May 24, 2011

IIM-A GDPI-1

Indian Institute of Management, Ahmedabad GDPI Experience (2011) - 1/1


Candidate: Abhishek   
Work Experience: 30 months

There were 12 in a group. 

Essay Writing:
Topic: too much higher education is bad for the development of the country"

Time: 10 mins. Managed to write a short but logical essay and even managed to conclude it with 2 mins to spare. 

Personal Interview:

2 members in panel. I'll say Right, Left and Me.

R:tell me about ur work in short.
Me: did. 
R: so abhishek, u do steel refining. U know how to remove sulphur from steel. Tell me why is sulphur considered an impurity in steel.
Me: sir sulphur leads to something called hot shortness which is when steel fails (fractures) under hot working.
R: and why does hot shortness happen?
Me: I dont know that much details sir.
R: still. Make a technical guess.
Me:sir may be at high temperatures sulphur forms some compounds which act as inclusions and give internal stresses. N so when worked upon steel cracks. ( later i find i am correct. Only didnt know that the compound is iron sulphide.) R smiles. Without being asked I go on to add that sulphur does it in hot conditions while phosphorous does the same in cold conditions. It is known as cold shortness.
R: are u sure phosphorous does it in cold conditions? Not hot?
Me: yes sir. For sure phosphorous causes failure on cold working only.
R:and why does cold shortness happen?
Me: no idea again sir. (would be on similar lines as before. But i avoided guessing unless asked to. he is ok with that. Passes on the baton to left.)
L: so abhishek, been to foundries before? During college visits?
Me: yes sir. Did my industrial training at HAL foundry forge division.
L: so u'll know there is a severe problem of rejections in castings in industry these days. Can u statistically give the causes.
Me: ( dont know what he meant by statiscally. Simply gave the reasons) sir there is th problem of inclusions which may come through furnace or during moulding. Problem of hydrogen which comes from moisture if moulds r not properly dried. Also chilling stresses if moulds r not properly preheated
L: ok. Now explain how u would take up this challenge in an industry. Analyse causes n deal with them. ( again used th word statistically 2-3 times. I was scared of that word now)
Me: sir the most important cause for rejections would be inclusions. And as a first step to their formation i'd say they come from the furnace itself. If we have long heat hours and we hold molten steel in the furnace for long the refractory walls get iroded and enter steel as inclusions.
L: ok so now we come to the conclusion that time is a determinant. More the exposure time more the inclusions.
Me: yes sir. Heat time should be as less as possible to avoid inclusions.
L: so now if i plot a graph with time on x axis and exposure on y axis and have time t0 and t1 and exposure e0 and e1 at which particular combination would we have max inclusions. 
Me: t1e1

L happy now. Makes some comment on the glow in my eyes n the smile on my face. I couldnt tell that i was trying hard to keep a smiling face. He asked me if i was never asked this kinda case before. I said we did this kind of analysis for our internal quality improvement but discussing it for the first time with an outsider.

R: ok so what r ur hobbies. Wat u do in ur free time.?
Me: i am into swimming and cricket sir. And when not doing that i read something or watch TV
R: u into any teams?
Me: sir swimming i've been to district levels. I've also been in my departmental cricket team in college. We dont have a swimming team in BHEL. But we are working to have one in place this year. We have inter-unit tournaments in BHEL.

Then they said they were done. Offerred me a toffee. I came out.

Verdict: Converted

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