chemical engineering tech quiz-finals

Department of Chemical Engineering and Materials Science

Chemical Engineering Technical Quiz

Finals

Questions by Rameshwar, Narasimhan.tg, Prahlad, Rama Krishna


Infinite pounce 1


Rules• 8 questions,Infinite ponce• +20 and -10 for every pounce• No negatives on direct


1.What is this list ?• To flow• Greenish yellow• Stench• Violet• Unstable


• Halogens


• 2. In 1752, French mathematician Jean le Rond d'Alembert gave a mathematical proof that for incompressible and inviscid potential flow – the drag force is zero on a body moving with constant velocity relative to the fluid.(De lambert’s paradox)

• Zero drag is in direct contradiction to the observation of substantial drag on bodies moving relative to fluids, such as air and water; especially at high velocities corresponding with high Reynolds numbers.

• Fluid mechanics was thus discredited by engineers from the start, which resulted in an unfortunate split – between the field of hydraulics, observing phenomena which could not be explained, and theoretical fluid mechanics explaining phenomena which could not be observed .

Which theory explained the D’ lambert’s paradox? By whom?

.


Answer

The boundary layer theoryLudwig Prandtl


1

2

3. What is 1 and 2?


• It represents an FCC unit or Catalytic Cracking unit or Cracking unit

• 1- Regenerator• 2-Reactor


• 4.X was a chemical engineer who worked for E. I. du Pont de Nemours & Co. In 1934, with the help of W. S. Walcott, also a chemical engineer for du Pont, he decided to venture into something that has helped engineers and scientists for over 70 years. In 1964, his son Y, also a chemical engineer rendered his services to his father’s work. Today we know the work by X’s son’s name, despite the work being his father’s brainchild. Y was again called to help Don Green with the work in 1978 but he died in a car accident.

•Identify X and Y. What was X and Y’s their contribution to chemical engineering?


•X - John Perry

• Y - Robert Perry


5.The inner cone has a slight circular movement, but does not rotate; the movement is generated by an eccentric arrangement.

In what context am I referring the above lines? Name the equipment that uses the same kind of mechanism for a particular application?


• Crusher• Gyratory


X

6.First European depiction of a X in 1450 by Taccola , an Italian polymath. Id X


Piston Pump


7.• Algeria• Angola• Ecuador• Iran• X• Kuwait• Libya• Nigeria, • Qatar,• Y• The United Arab Emirates • Venezuela


• OPEC• X: IRAQ• Y: SAUDI ARABIA


8.Id the organization


• Organisation for the Prohibition of Chemical Weapons

• organisation was awarded the 2013 Nobel Peace Prize


VISUAL ROUND• 6 questions in this written round.• Each question will have 4 pictures.• Id the connect between the pictures.• 10 points for each correct answer.

• No negatives


1. CONNECT


• ATOM MODELS

• Dalton model (Billiard Ball Model)• Thomson model (Plum Pudding Model)• Nagaoka model (Saturnian Model)• Rutherford model (Planetary Model)


2. ID THE POLYMER


• POLYPROPYLENE


3. ID THE CHEMICAL


• AJINOMOTO (Monosodium Glutamate)

Discovered and patented by Kikunae Ikeda.Industrially purified glutamic acid salts, originally

found in seaweed .


4. CONNECT


• KEVLAR

Stephanie Kwolek, an American chemist of Polish origin, inventor of kevlar

The reaction of 1,4-phenylene-diamine (para-phenylenediamine) with terephthaloyl chloride yielding kevlar


5. CONNECT


• MINISTER OF PETROLEUM AND NATURAL GAS• Dharmendra Prasad

• Jaipal Reddy

• M.Veerappa Moily• • Mani Shankar Aiyar


6. ID THE MATERIAL/POLYMER


• EPOXY RESIN


PROBLEM SOLVING• 6 questions in this written round.• 10 points for each correct answer.

• No negatives


1. For the below manometer setup , the pressure difference Pa-Pb=


• (ƿh-ƿa)gH


2. Below is and counter current heat exchanger. Determine its LMTD_________

Note: temperatures in deg C

120

60 90

30


• Ans: 60 deg C

• LMTD=(60+60)/2 = 60 deg C


The length of pipe sections P, R, R and S are equal. The diameter of the sections P and R are same.The diameter of section Q is twice that of S.

Find the volumetric flow ration of Q to S. (Qq/Qs)=_________

3.


• Ans: 8

• Pressure drop is same for the both pipe sections Q and S so equate them to get the ratio.


4. An aqueous Nacl (10 wt%) is to concentrated to 20 wt% using an evaporator. Determine its Economy________.

EVAP

ORA

TOR

S=8000 kg/hr

F=10000 kg/hr

V

L


• Ans: 0.625

• Mass balance: 10000*0.1=0.2*L L=5000 kg/hr which is equal to V=5000 kg/hr

• So Economy=(5000/8000)=0.625


5. Relate one of the dimensionless number in the form of other numbers?

• Nu• Re• Pr• St


• st=(Nu/Re*Pr)

• Reynolds anology


The frictional head loss in the suction pipe is negligible. If the vapour pressure of the liquid at the temperature of operation is 3m of water then, the NPSH=_______?

6.


• Ans: 4.3 m

• NPSH=[(HS-hfs-hs)-HV]• NPSH=[(10.3-0-3)-3]= 4.3 m


INFINITE POUNCE 2


Rules• 8 questions,Infinite ponce• +20 and -10 for every pounce• No negatives on direct


1.X is an unofficial holiday celebrated amongst chemists, science and engineering students on Oct 23 between 6:02 am and 6:02 pm in honour of Y

• Id please


• Mole day in honour of avagardo and avagardo no• 6.02*10^23


2.


• Name the chemical industry?• What happened?


• Union Carbide India Limited• From reactor the coolant water accidently fell

into the MIC and the sudden chemical reaction led to increase in pressure inside the tank that caused the disaster.


3• As of 2013, it is the only one of it‘s kind and CIPM wishes to rid

it of this dependency‘, as per a vote taken during October2010.• The most acceptable solution is to do it in terms of the Planck‘s

Constant, h. Efforts such as the Watt Balance‘ experiment and determinations of the mass of one mole of silicon atoms offer new ways of determining an accurate value of h, thereby contributing to a more reliable definition, something they wish to finalize and introduce during this decade.

• What is this solution for and how is this currently the only one of it‘s kind?


• Definition of the Kilogram. It is currently the only SI

• unit still defined by a physical artefact.


4.The following slide consists of a plot between the Nusselt number and the Reynold’s number. What would be the fluid that would comply with the graph?


•


• The graph suggests that Prandtl number is neglected which implies that the fluid is a gas.


5.Depicted is a foot ball consisting of 20 hexagons and 12 pentagons….Think chemistry and connect


• Buckminister Fullarine ( C60)


• 5. X is a plastic that's able to withstand incredible amounts of heat - nuclear explosion levels of heat - and can be moulded into any form, and while we've know about it for two decades it's never been used in any commercial product.

• That's because creator Maurice Ward, a hairdresser from Yorkshire, was so paranoid about somebody stealing his invention that he refused to licence it. Ward died in 2011, and it's unclear what happened to his formula: some say that the whole thing was an elaborate hoax, while others say it's real and that Ward's family still have it.

• If they do, they're sitting on a goldmine: as James Rivington explains, "the applications for it are near infinite" - but "no scientific mind has ever been able to work out how it works".


• STARLITE


6.• X is a catalyst named after Karl and Giulio and is used

in the synthesis of ploymers of 1 alkane.• They are titanium/vanadium based catalysts that

speed up the polymerization reaction hence elminiating the requirement of high pressure.

• This is employed in the manufacture of practically all polyethylene products.


\


7.Arnold Orville Beckmann was an assistant professor at CalTech in 1930s. At that time the fruit industry of California was facing a crisis. Generous use of pesticides/fungicides affected acid levels of land and as a result, inferior quality citrus fruits were being produced. Beckmann was presented with a challenge to solve this problem and he did; by producing a device which is commonly used in chemistry lab. ID


• pH meter


• 8. The world’s thinnest material, X has inspired scientists to focus their researches on touch-screens,ultrafast transistors and photo-detectors that may revolutionise the world of electronics. X has the potential to replace silicon in high-speed computer processors and other devices. This strong and thin carbon material seems indeed to perfectly combine mechanical, electrical and thermal conductivity. Which material/What’s X


• Graphene


Theme

There is a common theme connecting all the following slides

The mark distribution is indicated on the top right corner of each slide


Dilithium

Chemical which can be used as a fuel

+60/-50


+50/-40Xithricite

A bright green mineral used to produce very strong alloys


+40/-30Timonium

Timonium is used as an internal power source for high tech devices


+30/-20Byzanium

It is a powerful radioactive material for use as either an energy source for missile defense

system or atomic super bomb


+20/-10Cobalt Thorium G

Both elements Cobalt and Thorium combined can be used in atomic weapons to increase the amount of dangerous nuclear

fallout.


+10/-5Mithril

Durable silvery metal that is very light and extremely strong.


+5/0Kryptonite

A crystalline material, originally in various colors with separate effects


Keeping up with the theme of Anokha, Science Fiction

These are all fictional elements that appear in movies and books

Dilithium – Star trekTimonium – Stardust seriesCobalt thorium G – Dr. StrangeloveByzanium - Raise the Titanic!Mithril – Lord of the RingsKryptonite – DC Comics


Thank you

chemical engineering tech quiz-finals

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