Free National level E-Quiz on “Applications of Nanomaterials” with Certificate

Organizer: PG & Research Department of Physics , T.B.M.L College, Porayar

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With Regards
Dr.M.Jothibas,
Assistant Professor
Organizing Secretary ,
PG & Research Department of Physics,
T.B.M.L.College Porayar ,(Affiliated to Bharathidasan University, Trichirapalli),
Mayliaduthurai(Dt) ,Pin 609 607,Tamil Nadu.
Mail id : jothibas1980@gmail.com
Mobile : 99941 97383

  1.  Nanomaterials are the materials with at least one dimension measuring less than _

2 points

1000nm

100nm

1nm

10nm

  1. A material with one dimension in Nano range and the other two dimensions are large is called _*

2 points

Micro-material

Quantum wire

Quantum well

Quantum dot

3.The colour of the nano gold particles is _*

2 points

Yellow

Orange

Red

Variable

4.The melting point of particles in nano form _*

2 points

Increases

Decreases

Remains same

Increases then decreases

5.The first talk about nano-technology was given by _*

2 points

a) Albert Einstein

b) Newton

c) Gordon E. Moore

d) Richard Feynman

  1. The initial tools used to help launch the nanoscience revolution were _*

2 points

a) Binoculars

b) Microscope

c) Scanning probe instruments

d) Interferometer

7.The size of atoms is nearly __*

2 points

a) 0.01 nm

b) 0.1 nm

c) 1 nm

d) 10 nm

8.The synthesized magnetic nano particles from _ have been found to self-arrange automatically.*

2 points

a) Zinc

b) Copper

c) Iron

d) Zirconium

9.___________is the field in which the nano particles are used with silica coated iron oxide.*

2 points

a) Magnetic applications

b) Electronics

c) Medical diagnosis

d) Structural and mechanical materials

10.Coating the nano crystals with the ceramics is carried that leads to __*

2 points

a) Corrosion

b) Corrosion resistant

c) Wear and tear

d) Soft

11.The extensively used nano particles as catalyst is_________*

2 points

a) Silver

b) Copper

c) Gold

d) Cerium

12.What is a buckyball?*

2 points

a)A carbon molecule (C60)

b) Nickname for Mercedes-Benz’s futuristic concept car (C111)

c)Plastic explosives nanoparticle (C4)

Id) Concrete nanoparticle with a compressive strength of 20 nanonewtons (C20)

13.Who first used the term nanotechnology*

2 points

a) Richard Feynman

b) Norio Taniquichi

c) Eric Drexler

d) Sumio Lijima

  1. A cut-off limit of human eye is …… nm*

2 points

a)2000

b)5000

c)10000

d)50000

15.By nano scale distribution of the _ in matrix improves the life and performance.*

2 points

a) Carbide

b) Tungsten

c) Hydrides

d) Nitrites

16.Nanotechnology, in other words is*

2 points

a) Carbon engendering’

b) Atomic engendering

c) Small technology

d) Microphysics

17.The most important property of nanomaterials is*

2 points

a) Force

b) Friction

c) Pressure

d) Temperature

18.Which of the following is an example of top-down approach for the preparation of nanomaterials?*

2 points

a) Gas phase agglomeration

b) Molecular self-assembly

c) Mechanical grinding

d) Molecular beam epitaxy

19.The properties like melting point, solubility, color, etc changes on varying the _

2 points

a) Size

b) Composition

c) Surface properties

d) None of the mentioned

  1. Quantum confinement results in _*

2 points

a) Energy gap in semiconductor is proportional to the inverse of the square root of the size

b) Energy gap in semiconductor is proportional to the inverse of the size

c) Energy gap in semiconductor is proportional to the square of size

d) Energy gap in semiconductor is proportional to the inverse of the square of size

21.Which of the following is the application of nanotechnology to food science and technology?*

2 points

a) Agriculture

b) Food safety and biosecurity

c) Product development

d) All of the mentioned

22.The efficiency of today’s best solar cell is about _*

2 points

a) 15-20%

b) 40%

c) 50%

d) 75%

23.Quantum dots can be used in _*

2 points

a) Crystallography

b) Optoelectronics

c) Mechanics

d) Quantum physics

24.Nanoscience can be studied with the help of …..*

2 points

a) Quantum mechanics

b) Nwetonion mechanics

c) Geophysics

d) Microdynamics

25.The nanomaterials are used light emitted electron luminescence device…*

2 points

a)Trure

b)False

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