07A80301 Nanotechnology B.Tech Question Paper : scce.ac.in

Name of the College : SREE CHAITANYA COLLEGE OF ENGINEERING
University : JNTUH
Department : Mechanical Engineering
Subject Code/Name : 07A80301/NANOTECHNOLOGY
Year/Sem : IV/II
Website : http://scce.ac.in/web/
Document Type : Model Question Paper

Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/scce.ac.in/4922-07A80301-NANOTECHNOLOGY.pdf

SCCE Nanotechnology Question Paper

Code No: 07A80301
R07 Set No. 2
IV B.Tech II Semester Examinations,April/May 2012

Related / Similar Question Paper : SCCE JNTUH B.Tech Flexible Manufacturing Systems Question Paper

Time: 3 hours
Max Marks: 80
Answer any FIVE Questions :
All Questions carry equal marks :
1. (a) Explain the preparation of sample for TEM study.
(b) Explain about Sintering of Ceramic materials. [8+8]
2. What is the importance of the Operator in Quantum mechanics? Explain about the Hamiltonian Operator. [16]

3. (a) Explain the stress intensity factor.
(b) Explain the hook’s law. [8+8]
4. Explain the Refractive Index and Dispersion in glasses with equations. [16]

5. Discuss about targeted drug delivery using nanoparticles. [16]
6. Give basic requirements for the delivery of a nanoparticle-drug system via oral administration. [16]

7. Write a note on electron gun of a typical SEM. [16]
8. Explain about zero dimensional structure or one dimensional structure of nanomaterials. [16]

Set No. 1

1. What are nanomaterials? Explain about dierent methods to produce nanomaterials. [16]
2. Explain about dierent types of bonding in solids. [16]
3. Write a note on applications of AFM. [16]

4. Explain spontaneous emission and stimulated emission. Differentiate between them with regard to principle,,working, advantages, limitations and applications., [16]
5. (a) What are the parameters of magnetization of ferrites and hysteresis?
(b) Distinguish between soft and hard magnetic materials. [8+8]

6. Briefly explain the synthesis of Alumina nano particles by mechanical attrition.[16]
7. Explain various kinds of nanosystems used in nanomedicine. [16]
8. Explain about the nanosensors based on optical properties. [16]

Set No. 2

1. What is nanotribology? Explain in detail. [16]
2. (a) List out the properties of Silicon Carbide.
(b) List out the applications of Silicon Carbide. [8+8]

3. What are the advantages of noble metal nanoparticles? [16]
4. Explain Electro-Optic Eects in detail. [16]
5. What are colloids? Explain about the molecules in colloids. [16]

6. Write a note on bulk specimen interactions used in SEM. [16]
7. Explain the applications of magnetization data of nano particles of magnetite. [16]
8. Write a note on Hyperne splitting. [16]

IV B.Tech II Semester Examinations,April/May 2012 :
Nanotechnology : Mechanical Engineering
Time : 3 hours
Max Marks : 80
Answer any FIVE Questions
All Questions carry equal marks
1. Briefly explain about characterization of nano particles by electron microscopy.[16]
2. Write an essay on Verwey Transition of Nano Particles in detail. [16]

3. Briefly discuss about the interaction of biomolecules and nanoparticles surfaces. [16]
4. What are characteristic and continuous x-rays? What x-rays are used for crystal structure determination? [16]

5. (a) Explain the hyperne eld in nano particles.
(b) Explain the spin canting in nano particles of magnetite. [8+8]
6. List out some applications of optical transitions in laser materials. [16]

7. Discuss about Hydrothermal method used in preparation of nanomaterials. [16]
8. Discuss about single molecular devices. [16]

IV B.Tech II Semester Examinations,April/May 2012 :
Tribology :
1. Lateral stability of a long shaft 15cm in diameter is obtained by means of a 25cm stationary bearing having an internal diameter of 15.025cm. If the space between the bearing and the shaft is lled with a lubricant having a viscosity 49Nsec/m2, what power will be required to overcome the viscous resistance when the shaft is rotated at a constant rate of 180rpm? [16]

2. (a) What are the applications of hydrostatic bearings?
(b) Compare advantages and disadvantages of hydrodynamic and hydrostatic bearing. [8+8]

3. (a) What is the main dierence between hydrodynamic and hydrostatic lubrication?
(b) Are hydrostatic bearings eective at high sliding speeds? Discuss. [8+8]
4. What other parameters, apart from viscosity, are signicant when dealing with lubricants? Explain their role on the eectiveness of the lubricant. [16]

5. (a) What is the advantage of the oset pivot compared to centrally pivoted pads?
(b) The centrally pivoted pad is suitable for load carrying in both directions of rotation, while the o-center pad is unsuitable. The centrally pivoted pad is, however, inferior to the o-center pad in one important aspect. Discuss.[8+8]

6. (a) What are the classic laws of friction?
(b) Explain elastic contact in metals. [8+8]
7. What are the characteristics of castable bearing materials? [16]
8. Give the design aspect of extremely pressurized bearings. [16]