Fwd: Re: Grand Viva Question bank

[Abhishek Malhotra]

These are a list of technical questions,  that our seniors have documented, that are asked in the Grand Viva. However, I have been told that these can also help in preparation foe technical questions for the placement.

---------- Forwarded message ----------
From: Kinshuk Bhardwaj <virt...@gmail.com>
Date: Sun, Nov 30, 2014 at 11:35 AM
Subject: Fwd: Re: Grand Viva Question bank
To: malhotra...@gmail.com

---------- Forwarded message ----------
From: "Dwaipayan Pradhan" <dvpr...@gmail.com>
Date: 04-Nov-2013 10:05 pm
Subject: Re: Grand Viva Question bank
To: <chemengg...@googlegroups.com>
Cc:

few more additions to the grand list...Enjoy the music :)

On Mon, Nov 4, 2013 at 9:36 PM, Dwaipayan Pradhan <dvpr...@gmail.com> wrote:

thanks for sharing this useful compilation... :)

On Fri, Nov 1, 2013 at 5:34 PM, kaushik sivaramakrishnan <kau...@gmail.com> wrote:

Thanks a lot aRam

On Fri, Nov 1, 2013 at 5:33 PM, kaushik sivaramakrishnan <kau...@gmail.com> wrote:

---------- Forwarded message ----------
From: Ram N V <ram....@gmail.com>
Date: Fri, Nov 1, 2013 at 3:09 PM
Subject: Fwd: Grand Viva Question bank
To: kaushik sivaramakrishnan <kau...@gmail.com>, Sumit Yadav <sumit...@gmail.com>, vijay bhaskar <vijay.bh...@gmail.com>, Kinshuk Bhardwaj <kinshuk...@gmail.com>

A list we'd compiled of our GV experiences. Had forgotten until today.

Forwarded conversation
Subject: [chemers] Grand Viva Question bank
------------------------

From: aashish gaurav <hanuma...@gmail.com>
Date: Wed, Apr 6, 2011 at 12:45 PM
To: CHEMERS <kgpc...@googlegroups.com>, acadch...@googlegroups.com


I would request every one of us to post the questions they faced in the following thread.
We may find them useful next year in our final Viva and also during the placement period.

Thanking in advance,
 
Aashish Gaurav,
Senior Year Undergraduate student,
Dual Degree Program,
Department of Chemical Engineering,
IIT Kharagpur.

Vice President,
Chemical Engineering Association,
Department of Chemical Engineering,
IIT Kharagpur.

(0091) 9735607329

" Life is what happens to you while you're busy making other plans " - John Lennon




----------
From: aashish gaurav <hanuma...@gmail.com>
Date: 2011/4/6
To: CHEMERS <kgpc...@googlegroups.com>, acadch...@googlegroups.com




Panel : Jayanata Chakraborty, G Kundu, AK Jaana

1. Jayanta

- What are the pillars of Chemical Engineering ?
- Sir....Reaction Engg, Fluid Dynamics, Thermodyamics, may be Transport Processes.

- Pick your favourite
Thermodynamics

- What is thermodynamics ?

- Okay, is this equation an ODE or a PDE ?
This is an IVP or a BVP ?

How do you solve it ? What are the different ways of solving ODE, PDE?

Tell me 4 different mechanical operations ?

Write down the Hagen Poisvelle Equation. Write Raoult's law, for ideal and non ideal solutions.
________________________________________________________________________________________________

2. AK Jaana

Write down Raoult's law, for non ideal solution.

How do you measure vapour pressure ( Answer : Antoine Equation)

Claussius Clapeyron Equation

Dalton's law

Bubble point calculations

How could you calculate latent heat of fusion, if Λ_L , λV   are given?

What is fugacity ?

__________________________________________________________________________________________

Gautam Kundu

1. Favourite subject : Industrial Pollution control, Boundary layer, Mechanical operations before midsems

2. What is boundary layer. When it is formed.

3. Relation between delta and x.

4. Laws of crushing

5. mesh number.

6. Crusher efficiency and mechanical efficiency.

7. Conductive heat transfer.

8. Why do we consider boundary layer ?

9. draw a closed loop grinding

10. What is View factor - Radiation.

--

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----------
From: Asmit Bhowmick <asm...@gmail.com>
Date: 2011/4/6
To: acadch...@googlegroups.com


Sudipto Chakraborty:

IPC/heat transfer:

what is order of a system; 

eqn of 1st order system

significance of tau in that eqn

explain nusselt's number and heat transfer coeffieicent

difference between biot no. and nusselt number

Somnth Ganguly:

Mass Tr/Fluid mech

name a few flowmeters

how does rotameter work

where does drag force in rotameter work

how does pitot tube work

where can you take the free stream pressure for pitot tube (he said you can also take it near the tube)

Difference between Reciprocating and Centrifugal pump(he wanted to be specific)

Why we use extraction (compared to say distillation for some processes)

NC Pradhan:

Rxn Engg

What is dissolution constant for the exp which we did in the lab for benzoic acid (rxn engg lab)

Then he said to derive the eqn from mass balance

Design eqn for a solid bed catalyst

From mass of catalyst how to find volume (divide mass by which density?)

--
Asmit Bhowmick
Final Year Student
Department of Chemical Engineering
Indian Institute of Technology, Kharagpur
91.97344.29370

----------
From: lalrinsanga rokhum <rksa...@gmail.com>
Date: 2011/4/6
To: acadch...@googlegroups.com


Panel: NC Pradhan, Sudipto Chakraborty and Somnath Ganguly

NCP:

1.) Where is the non linear term in rate equation?

2) What are the types of ideal reactors?

3) Why are they called ideal? What are non-ideal reactors?

4) Questions on Dissolution of benzoic acid.

5) What is integral method of analysis? 

6) What method of analysis did you use in your lab/

7) What do you have to assume?

Sudipto:

1) What is first order system?

2) Significance of time constant? Physical significance?

3) What is offset?

4) Do you eliminate all the errors in P only controller? Why? Mathematical expression.

5) Nusselt number and Biot number difference?

6) Fundamental differences of Conduction, Radiation and Convection?

7) Significance of 'h"

Somnath:

1) What is Newtonian and non-Newtonian fluid? :)

2) Flow measuring devices: name some conventional ones

3) Derive how flow is measured by a flowmeter and orifice plate :(

4) When do we use Centrifugal and Reciprocating pump? Whay?

5) Name some separation processes

6) When do we use Extraction over distillation?

--
R.K.Lalrinsanga
Final Year Undergraduate Student

Department of Chemical Engineering
Indian Institute of Technology Kharagpur
+91-9734426071

----------
From: Abhigyan Mandal <abhigya...@gmail.com>
Date: Wed, Apr 6, 2011 at 4:30 PM
To: acadch...@googlegroups.com


DD Kar

• HR qs,asked about iim interviews :P
• asked formula for 1/Unot for heat exchanger
• why are baffles used, what are tie rods
• hydraulic dia of a square pipe
• reynolds analogy : what number equals f/2

SRAY

• gross n net calorific value
• difference between vapour and gas
• calorific value of coal
• draw a nozzle with ring pad and shell
• centrifugal pumps - graph of H versus Q , shutoff head, operating zone, NPSH
• what are the impurities from refinery
  
• how to design  1-2 heat exchanger
• how to remove co2 , so2 and no2 from gas
• what is critical temperature and pressure
• a few other qs i could understand nothing of and so cant remember at all :P
  

SDG

• choose between momentum,heat and mass transfer..i chose momentum
  
• showed me truncated navier stokes eqn, asked me to identify what it was and explain physical significance of each term
• showed the above equations momentum integral soln and asked to identify boundary conditions after guessing the non-dimensional forms needed
• asked what is view factor in radiation..i said never heard of it..so he gave me the definition and asked me to calculate view factors of flat, curved and spherical surfaces
• asked me the reynolds analogy qs asked by dd kar
• asked me the terms in bernoullis equation and "which subject would be needed to incorporate viscous terms in this eqn"
  

--
Abhigyan Mandal
Roll No: 07CH1025
Final Year Undergraduate Student,
Chemical Engineering Department,
IIT Kharagpur

Ph: +91-9830122854
Email: abhi...@iitkgp.ac.in
         abhigya...@gmail.com

----------
From: Sukanya Sasmal <sukany...@gmail.com>
Date: Wed, Apr 6, 2011 at 4:44 PM
To: acadch...@googlegroups.com


Sonali Sengupta

What is solvent?

How paint dries?

Single/dual site mechanism

Compounds used in Nylon 66

Name of benzene structure

Which will you arrange a large reactor and small reactor in a series combination?

Given equilibrium constant, how will you find equilibrium conversion?

Ammonia formation- exo or endo?

Meikap

Where rotameter cannot be used?

Force balance for the same

Schematic diagram of 2-4 heat exchanger

Write formula for overall heat transfer coefficient in tubes

Significance of Nusselt no

Lubricants used in fans?

What type of fluid are they?

Draw shear stress curve for it

Diff types of fluid?

How flow is measured for waste water flowing in drains in industry?

Sudarshan Neogi

Thermoplastic and Thermosetting polymer - diff

Petrol and Diesel difference?

Instruments used to measure flow?

Give example of variable head and area flowmeter?

Non invasive techniques of measuring flow?

Pitot tube

What type of material is bottle - thermoplastic 

Boundary layer in pipe with distance for laminar and turbulent flow

WHAT is boundary layer?

On what factor does boundary layer height  depends? - velocity, length

What is difference between biochemical and  chemical reactions?

Name one biochemical reaction?

Antibiotic production

Stefan Boltzman law

What kind of heat transfer can take place from a table top?

Harikrishna

What is viscoelastic fluid?

Give example

What kind of forces come into play in micro-channel?

Why microchannnel?

Separation in microchannel

BTP details

----------
From: Sukanya Sasmal <sukany...@gmail.com>
Date: Wed, Apr 6, 2011 at 4:50 PM
To: acadch...@googlegroups.com


Sonali

What is Standard temp and pressure? Normal temperature and pressure?

H2SO4 production? What is meant by 20% oleum?

Aie liquefaction?

What kind of column used?

What comes out at the bottom and the top?

Sudarshan 

Pump characteristics

Name a type of packing used in column?

How do you make it?

Meikap

How to design diameter of feed nozzle in distillation column?

What is channeling? How do you prevent it?

----------
From: Komal raghu <komal...@gmail.com>
Date: Wed, Apr 6, 2011 at 4:57 PM
To: acadch...@googlegroups.com


Kundu Says :-

Pick Your favorite subject 

A) Fluids ,errr....... bit of Heat transfer .

K says:- Lets start with heat transfer then ... grrr 

1)Dittus-Boelter Equation

2)Sieder -Tate Equation 

3)Significance of Re , Pr and Nu.

4)Define Emissivity 

5)Planck's & Stefan's Law

6)View Factor & its Significance

7)Forces acting on a body immersed in fluid.

6)Drag force and its importance.

7)Corelation between fanning factor and Drag coefficient

8)Do u know anything about Mechanical Operations... "err sir I am nt sure."

9)Ok ,whats filtration ? 

10)Bond's Law & Work Index

11)Genralized Filtration Equation.

Jana says :- Pick Your fav subjects 

"sir , Fluids" 

J says :- Why?

"i Think I can do better in Fluids"

J says:- very diplomatic ...

1) Whoz the foreign secretary?

2)Whoz the External affairs minister?

3) Whoz RBI Governor ?

4)Flowmeters classification ?

5) write down the popular ones..

6)Difference between Venturi and orifice meters?

7)WHich is better?

8) How does Drag coefficient effect them ?

9)Flow ranges of both ?

JC :- Pick your fav subjects ,

"fluids" 

JC:- I have been asking fluids till now,lets switch to Mech Op...

1)FOur mech ops

2)Instruments for eeach of the 4

3)Dynamical Matrix

4)Inverse of a Matrix

5)e^(-x) graph

6)PDE or ODE ?

7)linear or non linear ?

8)RK Method of sloving ODE,equation,

9)For a laminar flow in a pipe given Pressure difference ,find Avg Velocity

10)Will it change if the flow is turbulent

11)Filtration involves what fluid dynamics principle 

12)Whats the basic equation in VLE? whats k in it ?

----------
From: Arvind Sambasivan <arvin...@gmail.com>
Date: Wed, Apr 6, 2011 at 5:03 PM
To: acadch...@googlegroups.com


Hey,

My Panel was DD Kar, S Ray and SDG.

S Ray-

• Choose fav subject among Fuel, combustion, Process Control, Mass Transfer, Design.
• What is Feed Forward control. And does it have to always contain Feedback control inside it.
• What is a 'bias' value in the PID equation.
• Give the order of Calorific Value of Coal.
• Draw an Engg Diagram of a nozzle connected to the heat exchanger wall.
• What is SORP.
• Temperature gradient inside a Distillation column.
• Pressure gradient inside a distillation column.
• What is NPSH?
• What is the direction of impeller blades in a centrifugal pump, direction of flow.
• What are the characteristic curves for a pump.

DD Kar-

• HR questions about placement, Apping, CG, internships etc.
• What is a tie rod? Where is it connected to in the HE?
• What is Reynold's analogy? and Which dimensionless number contributed to a crucial equation here. (St=f/2).   

SDG- 

• Choose between Momentum, heat and Mass transfer.
• Why do you people always chose Momentum?  :P
• NS equation, boundary layer, bernoillis eq with assumptions and conditions and the different losses associated with real fluids (major and minor).
• Which field deals with these losses?
• Laws of Thermodynamics.
• About viscosity, shear stress, what is denoted by tau(xy) etc..
• About Radiation.. About Black body, gray body .. 
• In a tank, if a hole is drilled, near the hole which losses are to be expected?
• Momentum Integral form for a Boundary layer. Given the equation, mention the boundary conditions.

Cheers!

-- 

JeRk

"All that is necessary for the triumph of evil is for good men to do nothing."

----------
From: Rohit Sudheendranath <rohit....@gmail.com>
Date: Wed, Apr 6, 2011 at 5:28 PM
To: acadch...@googlegroups.com


My panel was Meikap , SSG , GH and Sudarshan Neogi

Meikap :

What is priming of a pump ? How will you accomplish it ?

What is NPSH ?

What is cavitation ?

How would you come to know if there is cavitation in a pump ?

What type of pressure devise is used to measure pressure just after a centrifugal pump . Why ?

LMTD in countercurrent is less than LMTD in co-current in a special situation . What is that ?

Draw the flooding vs liquid velocity curve for a packed tower ?

GH -

What is octane number ? 

What is cetane number ? 

What is knocking and how would you describe knocking as a chemical engineer ?

Why do higher branched hydrocarbons have higher octane number ?

What is unleaded petrol ?

Why is the chemical used in unleaded petrol used ? And what is its mechanism of improving the quality of petrol ?

In terms of deltaG , thermodynamically explain how boiling takes place ?

Sudarshan Neogi :

What is the fundamental difference between petrol and diesel ? In terms of composition ?

In steam pipelines , how will you ensure there is no condensation ?

When there is condensation , how will you remove it ?

What are steam traps ?

What is cloud point ?

What is pour point ?

How will you pump highly viscous liquids ?

What is PPD ? ( Pour point depressant )

What are different types of packing in the packed column ?

Suppose you are a construction engineer , how will you fill up the column with the packing ?

----------
From: Arun Jain <jaina...@gmail.com>
Date: Wed, Apr 6, 2011 at 5:41 PM
To: acadch...@googlegroups.com
Cc: Rohit Sudheendranath <rohit....@gmail.com>


JKB

1. PV plot
2. derive eqns for PFR CSTR
3. Ideal NonIdeal reactor
4. 2 reactors in series, how to arrange?
5. some greek roman stuff 4m thermoD

SDe

1. asked to plot velocity and temp profile for various different conditions
2. why we measure flowrate
3. why we measure temp profile
4. some simple Qs

DS

1. non interacting CSTR
2. block diagram for feedback ctrler

baaki yaad nhi

----------
From: suruchi <suruchi....@gmail.com>
Date: Wed, Apr 6, 2011 at 5:51 PM
To: acadch...@googlegroups.com
Cc: Rohit Sudheendranath <rohit....@gmail.com>


Swati Neogi

Bernoulli's equation and two flow meter where it is applicable.

Distillation column, equation used and significance of q(the term that comes in operating line equation)

Principle of Rotameter.

Mass Transfer Theories.

Derive overall mass transfer coeff in two film 

NPSH

Surface Renewable Theory

Raoult's law and what would you use in case of Non-ideal solution

D Mukh

Crushers, Mills, critical velocity(to derive the expression)

Kick's law Bonds law and rittinger's law..and what is the basic difference

Settling: free and hindered 

Different types of settlers

What is thermistor, 

temperature dependent resistor

how does a thermocouple work

thermometers which use conductors's resistance 

Transfer function, stability of a process, poles and zeroes

Urea manufacturing

Ammonia manufacturing..starting from how we obtain H2 and N2

producer gas, water gas, the difference between them

Saiket

Derive NS equation of heat conduction in a cylinder

Derive the unsteady state conduction equation of a sphere with initial temp T1 fully submerged in fluid of temp T2. Boundary conditions.

Heat conduction equation in three slabs of diff k and length

Derive equation in a CSTR, unsteady state and A->B+C

Competitive reaction in a CSTR if initial mole flow rates are fixed and k1/k2 is given how would you control product formation

Eigen values for matrix

how to solve 1st order ODE of a matrix

--
Regards
Suruchi
final year undergraduate student
Department of Chemical Engineering
Indian Institute of Technology Kharagpur
+91-9475883687

----------
From: Pratik Agarwal <pratik...@gmail.com>
Date: Wed, Apr 6, 2011 at 5:53 PM
To: acadch...@googlegroups.com
Cc: Arun Jain <jaina...@gmail.com>, Rohit Sudheendranath <rohit....@gmail.com>


DDkar

1. Overall heat transfer coefficient

2. Dirt Factor

3. My future Life, Job, Job interview, blah blah (this constituted arnd 80% of conversation :P)

SDG

started with choice of fav sub among Momentum/Heat/Mass transfer, I chose momentum and carried from there

1. Newtons law of viscosity, lot of paraphernalia around that

2. Navier Stokes analysis

3. Boundary conditions, derivations

4. Boundary layer comparisons in mass/momentum/heat

5. Bernoulli: assumptions, variations, correction for viscosity blah blah

6. Thermodynamics

7. Heat Transfer correlations for momentum and mass (Dimensionless numbers, their comparison. importance..)

S Ray

Sorry, but I do not want to relive that part of the experience

regards,

Pratik

----------
From: Kaushal Jha <kausha...@gmail.com>
Date: Wed, Apr 6, 2011 at 6:17 PM
To: acadch...@googlegroups.com


same as sambas :)

On Wed, Apr 6, 2011 at 5:03 PM, Arvind Sambasivan <arvin...@gmail.com> wrote:

--
Kaushal

----------
From: Arkaprava Dan <arkad...@gmail.com>
Date: Wed, Apr 6, 2011 at 6:19 PM
To: acadch...@googlegroups.com


Panel: Kundu, Jana, Jayanta

Kundu:

• Fav subjects? (FF, HT)
• Draw a three effect evaporator. Co current, Counter current
• Draw a shell-tube 1-2 HEx
• Derive the LMTD for that (Ans: one of the tube passes will be cocurrent, other pass countercurrent)
  
• Draw the temperature profile for the shell side and tube side fluids along the length of the HEx
• Write the Stokes Equation
• What is Particle Reynolds Number?
• Basic equation of filtration?
  

Jana:

• What do you know about Pool Boiling?
• What are single effect evaporators, multiple effect evaporators, and their advantages and disadvantages?
• Do we use saturated steam or super heated steam in evaporators?
  
• Draw a HEx
• Do we have 1-3, 1-5 HExes in the market (odd no. of tube-side passes)? Why not?
• If the shell side fluid is a gas, and tube side is a liquid, where will u fill the liquid from, top or bottom?
• Why do we not have too many baffles? Won't it increase turbulence and heat transfer? (Ans: pressure drop will inc, cleaning will be difficult)
• Do you have any idea about the pitch? Advantages and disadvantages of square pitch and triangular pitch? (Ans: triangular - more compact, square - less pressure drop, easier to clean)
• Draw a distillation column
• Where is the temperature higher?
• Can we design a system to exchange heat from the top portion to heat the reboiler? Is it more economical to heat the reboiler separately or to heat the already warm gases and then make them lose heat by exchanging with the reboiler so that the warm gases are also condensed and the reboiler is also heated? Will the control of such a process still be easy? (This was kinda like an arbit discussion with him)

Jayanta:

• Name 5 mechanical operations
• Plot the graph of e^(-1/x) (via with pen and paper only)
• Various methods of solving PDEs?
• Difference between crushing and grinding?
• Use of analogies in FF, HT, MT?

Essentially Kundu ne hi serious questions pooche, where I could not answer ~30%, baaki do profs toh bhaat maare mere se.

On Wed, Apr 6, 2011 at 5:03 PM, Arvind Sambasivan <arvin...@gmail.com> wrote:

--
Arkaprava Dan
Fourth Year Undergraduate,
Dept Of Chemical Engineering,
IIT Kharagpur.

----------
From: DAMINI GUPTA <damin...@gmail.com>
Date: Wed, Apr 6, 2011 at 6:19 PM
To: acadch...@googlegroups.com

Kundu: I wil ask mech op/heat/fluid

A. MECH OP

1. Darcy equation?

2. equal velocity for Stroke n newton regime

3. Kozney karmen equation

4. Filtration equation and derive for constant flow rate and constant pressure difference

5. Specific cake resistance significance

6. how it varies with compressible/incompressible flow

7. Settling types

8. Power number

9. Work index

10. particle reynold number

B.FLUID

1. flow rate of flowing river without measuring velocity Ans: dam will act as V notch

2. how will u tell whether flow is turbulent without calculating reynold's number Ans: Draw velocity profile with pitot tube and flat at centre will indicate turbulent flow

rest dunn remem

C. heat

1. view number for radiation

2. convection related questions

Jana

1. heat ransfer design questions .......tube shell exchangers

2. compressor design and flow parameters calculation

3. condensor

4. decantaor design

5. 3 mass transfer operation: adsorption. distillation.. and decantor ........ complete primary and auxillary control loops

Jayanta

1. talk on turbulence

2. talk on all subjects till now n dere importance

3. gave some math functions n draw dere curve

4. various king of ode/pde and dere solution

5. u like chemical or finance..........If u dont like both give some talk on topic you like

----------
From: Arkaprava Dan <arkad...@gmail.com>
Date: Wed, Apr 6, 2011 at 6:23 PM
To: acadch...@googlegroups.com


Ohh, and Jayanta also asked some random CFD funda as well, and some small discussion on Finite Volume Methods.

----------
From: Mohit Agrawal <coolmohi...@gmail.com>
Date: Wed, Apr 6, 2011 at 6:24 PM
To: acadch...@googlegroups.com


JKB

1.) Kinetic model.. collision therory etc..
2.) write three formulas for k as func of Temp. ans one is Arhenius
3.) What is CSTR and PFR main diff : 1.) Back mixing 2.) dispersion
4.) Write NH3 disosiation rxn. Write eq. constant
5.) two CSTR 1 liter and 10 liter which one first
6.) CSTR 5 liter PFR 5 liter which one first

----------
From: shekhar <s.sau...@gmail.com>
Date: Wed, Apr 6, 2011 at 7:08 PM
To: acadch...@googlegroups.com


Jayant K Basu

1)Defiine solvent.[ after my explanation he told me solvent must not b reactive with solute]
2) Types of solvent, examples of organic solvent
 3)collision theory explanation
4) Questions based on Arrhenius equation
5) Define space time, RTD and explain difference between two
6)Talked about Dispersion no.
7) Utility of DIspersion no

S dey

1) difference streamline, streakline and pathline
2) Irrotational flow and example . Mathematical condition
3) Darcy law , Explain Retention on membranes
4) which dimensionless no is important for Natural convection
5) Define Grashoff No with mathematical expression
6) Condition for buyonacy between two parallel plates

DS
1) Turbo problem and servo problem
2) Effect on G(s) when set point is changed when Kp  is used .
3) Block diagram for a process control system
4) Output responses in 2nd order non interacting system for various disturbance

--
Shekhar saurabh
BTech, Chemical Engineering
Indian Institute of Technology, Kharagpur, India - 721302.

----------
From: mayur doshi <mayurdo...@gmail.com>
Date: Thu, Apr 7, 2011 at 12:06 AM
To: acadch...@googlegroups.com

panel: S Ganguly, Sudipto and NCP

 

questions were same as asked to asmit

 

diff question of NCP:

design a packed bed reactor. (assume whatever u want)?

 

calculate the height of a distillation column?

----------
From: utkarsh prasad <utkarsh...@gmail.com>
Date: Thu, Apr 7, 2011 at 2:37 AM
To: acadch...@googlegroups.com


Panel : SDG , S ray , DDK

S Ray :

1. What is the difference between gas and vapour?

2. What is LMTD correction factor?

3. Which temperature measuring instrument will you use to measure temperature in a furnace?

4. What is channeling in packed bed tower?

5. Give conditions of flooding?

SDG:

1. Describe Reynold's Analogy

2. What assumptions are used for deriving Bernoulli equation?

----------
From: Ashish Kumar <ashi...@gmail.com>
Date: Thu, Apr 7, 2011 at 6:46 AM
To: acadch...@googlegroups.com


D Sarkar:

1. Derive the most general form of heat balance equation.

2. Solve it for 1D case for the specified boundary conditions.

3. What other analytical methods do u know for solving PDE?

4. Computational methods.

5. Are u aware of Matlab's toolboxes?

6. ODE45 solver mein do u know what's the significance of 45?

7. Algo associated with ODE45 solver?

8. Draw y* vs x and and enthalpy vs x

9. Temp vs x,y

10. Name different devices to measure pressure.

11. What device wd u use to measure pressure of a vessel containing corrosive liquid.

12. Diagram of bourdon tube.

13. Is the bourdon tube circular or does it have some special cross section?

JKB

1. given Vo vs Ca kaa data how wd u find kinetics const k?

2. A + B --> C mein u r given conversion x how wd u find eq const.

3. for gas reactions how wd u find epsilon?

4. What is enthalpy? write equation.

5. Internal energy

S De

1. Top plate is heated bottom plate is cold. There's air in between. Will the heat flow?

2. What's the diff bn Nu and Bi?

3. What's the significance of Bi?

4. ...

5. ...

----------
From: sahir hasnain <sahi...@gmail.com>
Date: Thu, Apr 7, 2011 at 2:11 PM
To: acadch...@googlegroups.com


My GV panel was D D Kar, SDG, S Ray.

Questions were more or less the same as KKJ and arvind. 

S. Ray: what is the critical temp. of steam?

            how do we create vacuum in a vacuum evaporator?

            How is sulphuric acid made from? where does Haldia Plant get sulphur from?

            pollutants in fuel gas containing sulphur burnt in air?

            

D. D. Kar: what's the equation of a fluidized bed?

                rest was all HR

SDG: components of Navier Stokes eqn?

         momentum transfer in fluid flow?

         Bernoulli's theorem as the same as arvind.

         liquid liquid boundary layer?

----------
From: abhijeet sureka <abhijee...@gmail.com>
Date: Thu, Apr 7, 2011 at 2:22 PM
To: acadch...@googlegroups.com


My Panel was Profs. Somnath Ganguly, NCP and Sudipto

SNG
1) What are ur immediate plans after KGP?
2) Where do u want to see urself 5 years down the line? ( This took arnd 5 mins :P)
Now Viva.
3) Units of Viscosity, mass transfer co-efficient?
4) Working of Rotameter, Pitot Tube, Orifice Meter.
5) An Instance where u ll prefer centrifugal pump over positive displacement pumps?
6) When ll u prefer distillation column over extraction column?
7)  Newtonian and Non-newtonian fluids- definition, equations and examples.

NCP
1) Diff.between ideal and non-ideal reactor?
2) Design equations of Batch, PFR, CSTR.
3) Space time and Space velocity?
4) How PFR equation is different from batch?
5) How do u determine order of a reaction?
6) What are the parameters of non-linearity in a rate equation?

Sudipto
Look above. He was asking the same set od questions to all.

--
Abhijeet Sureka
B Tech. (H), Chemical Engineering
Indian Institute of Technology Kharagpur,
Kharagpur (West Bengal)

Ph: +91 99320 55179
email: abhijee...@gmail.com

----------
From: Anshul Paliwal <anshu...@gmail.com>
Date: Thu, Apr 7, 2011 at 3:26 PM
To: acadch...@googlegroups.com


My Panel was Sonali SenGupta, Sudarshan Neogi, Bhim Charan Meikap and  G. Harikrishnan.

SSG:

What is Arrhenius Equation?
Which factor determines probability of collision of reactant molecules to form the product?
Temp dependence of rate constant.
Draw  energy of system vs reaction progress.
Decomposition of Ammonia - exothermic or endothermic?
Favored at high pressure,high temp or low pressure,low temp?
Two batch rectors,diff volumes,how will u decide on series arrangement?
A+B=R,B+R=S.series or parallel?draw concentration profiles of all species.

Sudarshan Neogi:

Drew 5 cars on paper-3 continuous,one gap,then 2.If i add one more car in the gap will entropy of sys inc or dec?
Bottle of Bisleri- thermoplastic or thermosetting?
Give an example of thermosetting.
Critical insulation thickness?
Prandlt number?
Corresponding number from mass transfer?
Steam flow in insulated pipe,some condensation is bound to occur.what device is used in industries to take care of it?
How are the packings installed in a packed tower?Are they thrown down from the top? :D
Flow measuring devices?variable head?variable area?non invasive flow measuring devices?
Compostion of cement?
Example of Bingham plastic.
State second and third laws of thermoD.


BC Meikap:
What kind of pump will u use for water?Centrifugal or reciprocating?
The max depth from which centrifugal pump can draw water?(Gave time to do calculations)
Sherwood number?Its physical significance?
Charecterstics of pumps.
Degree API Gravity?
One/two more,i can't remember.

G Hari :
Pick a subject - ThermoD.
Are u comfortable with statistical themodynamics?!! (Sir,lets stick with classical)
Diff b/w Gibb's and Helmholtz Free energies.
Relation between rate constant and Gibbs energy.
Ideal/non-ideal solutions.
Activity of solution?
Can we measure absolute free energy?
Phase change...governed by H or G?

----------
From: kkc <kkc...@gmail.com>
Date: Thu, Apr 7, 2011 at 11:24 PM
To: acadch...@googlegroups.com




almost same as that of anshul's .

Difference questions were:
neogi asked abt  process control( i chose PC as my strong one)

Name few controllers?
What's the use difference b/w feedforward and feedback controllers & their corresponding advantages?
abt bode plot & nyquist plot?
What is used to remove condensed steam from steam pipes in refineries ?( ans : steam trap)

Harikrishna asked to describe the work of my  BTP

SSG : ditto as that of anshuls

Meikap:

Diff. b/w gross calorific value and net calorific value?
What is smoke point & its value for kerosene?
How to measure open channel flow?
wht is co-carbonation?
purest quality of water used in industries?
What does 50mm Hg vacuum mean?
and some(related to fuel lab) I don't remember ( haven't heard the names of those till now)

--
Arkaprava Dan
Final Year Undergraduate,
Department Of Chemical Engineering,
IIT Kharagpur.

--

Namrata Salunke,

First year, M Tech,

IIT Kharagpur, India,

Deptt. of Chemical Engineering, 

--
Regards,

Sneha Gurumukhi

M. Tech, Chemical Engineering,

Indian Institute of Technology, Kharagpur,

India.

E-mail ID: ssg.7...@gmail.com

--
Regards,

Sneha Gurumukhi

M. Tech, Chemical Engineering,

Indian Institute of Technology, Kharagpur,

India.

E-mail ID: ssg.7...@gmail.com

--

Ramamoorthy N V

2nd year Masters Student (M.tech)

Department of Chemical Engineering

IIT Kharagpur  721302

Ph: +919002287193

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Dwaipayan V Pradhan
5th Year Dual Degree Student
IIT Kharagpur 
+91-8653416206
<dvpr...@gmail.com>

--

Dwaipayan V Pradhan
5th Year Dual Degree Student
IIT Kharagpur 
+91-8653416206
<dvpr...@gmail.com>

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Regards,

Abhishek  Malhotra,

Department of Chemical Engineering,
Indian Institute of Technology, Kharagpur.