Chemical PuYs this is our new thread to discuss all aspects of Technical Section because we all know that technical part also carry a good weightage. So lets make a winning strategy to make it to ONGC… 
Chemical PuYs this is our new thread to discuss all aspects of Technical Section because we all know that technical part also carry a good weightage. So lets make a winning strategy to make it to
ONGC...👍👍😃😃
how the planning shd b so that we complete the maximum in min time ? which study material all are following ?
😠😠
hell all find it in on freshersworld
ONGC Chemical Engineering Technical Questions,ONGC Grduate Trainees previous years solved question papers Most of the questions are from previous GATE papers, Specially numerical questions.
1. Sherwood Number Is the ratio of? Convective Mass transfer coefficient to Diffusive Mass transfer coefficient. ( Sh = KL/D)
2. Catalyst in the manufacture of HNO3? Pt-Rh catalyst
3. Process used to convert Black liquor to white liquor? Ans
4. What is Capitalised cost?
5. Which type of agitator will be used for viscous liquids?
6. Cavitation in pumps can be avoided by? Maintaining high vapour pressure.
8. After absorption of Ammonia in water how it can be recovered?
9. According to Collision theory How “T” and “K” are related? K proportional to T^1/2
10. Which law gives about the generation of EMF?
11. What is the Change in entropy in mixing two components?
12. Glass etching can be done by using?
13. What is Plancks law, Kirchoffs law and Stefan boltzman law ?
14. What is the reason for not using saturated steam in evaporator?
15. Order of reaction for which the size of MFR is bigger than PFR?
16. How optimum reflux ratio can be chosen?
17. For gaseous reactions which reactor will give best result?
18. Penetration theory in Mass transfer?
19. What is the maximum allowable pressure drop on tube side in shell and tube heat exchangers?
20. For exothermic reactions as the temperature decreased ,how rate of reaction changes?
21. Corner Frequency corresponds to angle?
22. During Condensation which property does not change?
23. If Pr>1, then heat transfer confined to? Viscous sub layer
24. Minimum offset and oscillation occur with which type of controller?
25. Head developed by a pump depends on?
26. In cooling towers efficiency can be increased by ?
27. Ultrafine grinding uses which mechanism?
28. Composition of synthesis gas?
29. Aniline point of diesel shows?
30. Three unequal sized mixed flow reactors of volume 5L, 10L, 15L are arranged in which order for reactions of order n>0?
31. For natural convection Nusselt number is the function of?
32. Which mechanism is used in Fluid energy mill?
33. Film coefficient of heat transfer defined as?
34. Petroleum coke is made by residue by which process?
35. Chemical used in the test of COD?
36. Product of reaction between acetylene and chlorine?
37. For first order reactions, if thiele modulus is 10, then effectiveness factor is? 0.1
38. Graph between 1/C0 vs t is straight for reactions of order? 2
39. Which type of arrangement used for cold and viscous feed? Backward feed
40. Superheated steam is not used in evaporator dur to? Low heat transfer coefficient
41. Byproduct in the production of phosphoric acid ? Gypsum
42. The equivalent diameter for flow through rectangular duct of width B and Height H is? 2(BH)/(B+H)
43. What is dead time in process control?
44. For gas phase reaction 2A->B, feed consists of 80 mole% A and 20 mol% inerts. If the conversion of A at the reactor exit is 50%, then CA/CA0 at the reactor outlet is?
45. Numerical on Pitot tube .
46. For exothermic reactions under adiabatic condition conversion goes through? Reaches maximum
47. View factor for concentric Spheres of radius R2 for smaller and R1 for larger sphere is?
48. Chemical Used in the test of COD?
49. LMTD correction factor?
50. H2S and S can be removed by using?
51. Newtons law of motion , analogous to what law in mass transfer
so lets discuss answers &also; discuss about individual subject's weightage😁😁😁😁😁😁
hey puys... any thoughts on the four given specifications viz. production ,chemist ,reservoir and material management ... which to prefer??? mine is production first but doubt in second 😠
as per no. of vacancies chemist is good but i see better exploration and aspects in offshore profiles .
...so which to consider, going with no. of seats or specified job profile???
...so which to consider, going with no. of seats or specified job profile???
Fourier's law of heat conduction applies to .......... surfaces.
hw good is the NPTEL materials for prep ?? 👼
what are the preparation techniques you all are following? I mean are u only following a MCQ book or a more traditional book like perry's or mccabe?
experiencing ONGC 👼👼 not sure about the batch.
Guys can we all have a common time when we all can discuss our technical queries subject wise ,
I think after 7 or 8 pm all can be comfortable so comment your preferable time when you can be online😁😁👏👏
What is the variable volume formula for isothermal batch reactor time?
plz do share your experiences if anyone has appeared for the previous GT exams!
anybody explain??
Chemical Puys @chem123 @ronny44 @anibidsan @yozil @Ned_stark @pramodrajput15 @Ojasi @rockstar01 @SataC & otherss... Any idea about the Post AEE-Reservoir? kindly throw some light puys..
😃👼👍😉👏
explain...😁
which of d foll r d examples of Newtonian fluid
does anyone know the cutoff marks(general) for chemical engineering in gate 2014?
hey Puys !!!! 😁😁😁
lets ol try to make dis thread ,a approaching step 2wards ONGC ....👍
bas.. we just have to SHARE ,LEARN & DISCUSS ...so im nw starting subjectwise posts,plz😁 discuss & comment queries abt any topics / questions related 2 that subject , & i request 2 puys.. jo prev year k experience share karee ...
so lets GET STARTED!!!!!👍😁😁
start wid MASS TRANSFER OPERATIONS :
route topics to remember for objective questions:
1.diffusion :fick's law(1&2) ,types of diffusion (partial press & dist. graph),binary diffusivity of liq and gases,its variation with temp and pressure.
2.distillation:relative volatilty ,types of distillation ,roults &henry; law,distillation tower(factors affecting dis. tower viz channeling ,entrainment ,weeping etc) ,azeotropes (its type wid examples= important )
3.mass transfer co eff.:related theory viz. film ,surface renewable & penetration ,individual & overall co eff.
4.absorption :absorption factor ,op line & equil. line,htu ,hetp , solvent used in absorption , stripping absorber ,packed tower (packing ,types of packing)
5.dimensionless no, co relations & approximations
6.humidification:dry bulb ,wet bulb, types of humidification ,their definition &formula; ,adiabatic saturation temp.,humid heat ,humid vol. ,cooling tower (its type)
7.mass transfer contact equipment viz spray tower ,venturi scrubber,agitated vessel etc
8.leaching & liq-liq extraction.
9.drying ,adsorption ,
10.basics of membrane separtaion ,ultrafiltration. inse jyada questions nahi rehte ...
bahut se topics miss bhi ho sakte hai...will try 2 add ,,on ma 2nd post...
as ongc ask around 25-30 numerical questions ...
imp topics on d basis of numericals...
calculation of no. of trays , question on analogies viz. chilton-colburn analogy etc , calculations of plate efficiency ,mc cabe thiele method....
guys...Do add other important topics,jo mujhse chuuth gye ho.. and nw post questions on MTO !!!
👍👍all d best!!
......ronny......
Is there any sectional cut off in this exam ?