Name of the College : Sphoorthy Engineering College
University : JNTUH
Department : Chemical Engineering
Subject Code/Name : 09A50807/NANOTECHNOLOGY
Degree : B.Tech
Year/Sem : III/I
Website : http://www.sphoorthyengg.ac.in/#/home
Document Type : Model Question Paper
Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/sphoorthyengg.com/4837-09A50807-NANOTECHNOLOGY.pdf
Sphoorthy Nanotechnology Question Paper
III B.Tech I Semester Examinations,December 2011
Time: 3 hours
Max Marks: 75
Related : Sphoorthy Engineering College 07A50802 Material Science For Chemical Engineers B.Tech Question Paper : www.pdfquestion.in/4869.html
Answer any FIVE Questions. All Questions carry equal marks :
1. Describe the mechanical, electrical and optical properties of carbon nanotubes. [15]
2. Define energy bands. Explain the energy band structures in metals, semiconductors and insulators. [15]
3. Explain Chemical bath deposition technique in detail. [15]
4. Discuss about the various synthesis methods for fullerenes. Give a short notes on the purification of fullerenes. [15]
5. What is the future of nanomedicine? [15]
6. What is sputtering? Discuss about dierent types of sputtering. [15]
7. Distinguish between optical microscopies and electron microscopies schematically. [15]
8. Explain the various characterization tools for core-shell nanoparticles. [15]
09A50807 Questions
R09 Set No. 4
1. Define conductor, semiconductor and insulator. Describe the energy band struc- tures in metals, semiconductor and insulator. [15]
2. Explain the dierent synthesis methods for fullerenes. Explain the purification of fullerenes. [15]
3. What are rotaxanes and catenanes? [15]
4. Explain about hydrolysis and condensation in sol-gel method. [15]
5. What is reactive sputtering? Explain about RF magnetron sputtering. [15]
6. Describe the various characterization tools for core-shell nanoparticles. [15]
7. Define Energy Dispersive Spectrometry (EDS) and Wavelength Dispersive Spectrometry (WDS). Explain how microanalysis of materials is done by using Scanning Electron microscope. [15]
8. Explain the filling of nanotubes and also the mechanism of growth of carbon nanotubes. [15]
09A50807 Questions
R09 Set No. 1
1. Discuss in detail about Photoelectron Spectroscopy. [15]
2. Describe the possible applications of nanotechnology. [15]
3. Explain the synthesis and purification methods for carbon nano tubes. [15]
4. Discuss about the optical properties of fullerenes. [15]
5. Write an essay on e-beam evaporation. Distinguish between thermal evaporaton and e-beam evaporation. [15]
6. What are the systems used and how nanoparticles are useful in the field of nanobiology? [15]
7. Explain the biological applications of core-shell nanoparticles schematically. [15]
8. Describe briefly the deposition of some oxide-based nanocrystalline thin film via Sol-Gel dip coating technique. [15]
09A50807 Questions
R09 Set No. 3
1. Discuss about targeted drug delivery using nanoparticles. [15]
2. Explain the following:
(a) Metallo fullerenes
(b) Doped fullerenes
(c) Endohedral fullerenes. [15]
3. Write an essay on the density of states at low- dimensional structures. [15]
4. Explain thermal evaporation in detail. [15]
5. What are the synthesis methods available for the preparation of carbon nano tubes? Explain. [15]
6. What are fictionalized metal nanoparticles? Describe the advantages of functionalized metal nanoparticles. [15]
7. Describe various stages in Pulsed Laser Deposition process. [15]
8. What is the basic principle in Scanning Electron Microscope? How are they different from Optical Microscopy- Explain. [15]
Material Science For Chemical Engineers :
1. What do you understand by the charge cloud of an atomic electron? Account for the fact that while the cloud density of the 1s electron in the hydrogen atom is maximum in the immediate vicinity of the nucleus; the probability of finding the electron is maximum at a distance from the nucleus. [16]
2. (a) Determine the critical crack length for a through crack contained within a thick plate of aluminum alloy, which is under uniaxial tension.
(b) Discuss how the amount and arrangement of the glass fibers in fiberglass- reinforced plastics affect their strength. [8+8]
3. Explain the following :
(a) Empirical laws of recrystallization
(b) Grain growth
(c) Super plastic behavior. [5+5+6]
4. (a) Compare edge and screw dislocations.
(b) Discuss the internal type of surface defects. [8+8]
5. Describe Iron-Iron carbide phase diagram in detail. [16]
6. Explain the austempering process for a plain-carbon steel. Draw a cooling curve for an austempered austenitized eutectoid plain-carbon steel, using an isothermal transformation diagram. [16]
7. Which crystal structures are most commonly found in metals? Compare their packing efficiencies in terms of coordination number and atomic packing factor. [16]
8. (a) Discuss how corrosion can be reduced by bringing environmental changes.
(b) Explain half-cell reactions.