Fundamentals Of Nanoscience Set 5
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This set of Fundamentals of NanoScience Multiple Choice Questions & Answers (MCQs) focuses on Fundamentals Of Nanoscience Set 5
Q1 | Hollow tubes of very small dimensions are called as
- mega tubes
- carbon nano tubes
- bucky ball clusters
- polymers
Q2 | The fullerenes that are larger in diameter than nano tubes and having walls of different thickness are
- mega tubes
- carbon nano tubes
- bucky ball clusters
- polymers
Q3 | Mega tubes are used for
- transport
- chemical industries
- laboratories
- preparation of compounds
Q4 | The chain, two dimensional and three dimensional polymers are formed under
- vacuum
- high pressure
- low pressure
- no pressure
Q5 | Spherical particles based on the multiple layers surrounding a buck ball core is called
- nano onions
- nano particles
- nano clusters
- nano materials
Q6 | The buckminister fullerene is naturally occurring element found in
- earth
- soot
- smoke
- fog
Q7 | The structure of C60 is called as
- isohedron
- truncated isohedron
- trigonal
- trigonal bipyramidal
Q8 | The vander-waals diameter of C60 is
- 1.1nm
- 1.2nm
- 1.3nm
- 1.4nm
Q9 | The bond length of the C60 is
- 1.1 ao
- 1.2 ao
- 1.3 ao
- 1.4 ao
Q10 | Carbon nano tubes are the sheets of graphite about
- 0.1nm
- 0.2nm
- 0.3nm
- 0.4nm
Q11 | Carbon nano tubes are also called as
- bucky tubes
- bulky tubes
- bulk tubes
- buck balls
Q12 | In how many methods the CNT can be prepared?
- 1
- 2
- 3
- 4
Q13 | The current used in the arc discharge method is about
- 100ma
- 200ma
- 300ma
- 400ma
Q14 | A water cooled surface is used in the process to collect
- nano particles
- nano tubes
- nano spheres
- nano sheets
Q15 | The carbon contained in the negative electrode sublimates.
- true
- false
Q16 | Plasma torch method is similar to the
- laser ablation
- arc discharge
- chemical vapour decomposition
- electrolysis
Q17 | Plasma torch method produces of CNT per minute.
- 1gms
- 2gms
- 3gms
- 4gms
Q18 | Chemical vapour decomposition is developed in an year
- 2001
- 2002
- 2006
- 2007
Q19 | The substrate is heated to
- 200c
- 300c
- 400c
- 700c
Q20 | CNT s are the strongest and stiffest materials in
- tensile strength
- ductility
- elasticity
- energy
Q21 | CNT posses strength up to
- 100gpa
- 200gpa
- 400gpa
- 300gpa
Q22 | Standard single walled CNT withstands a pressure up to without deformation.
- 1gpa
- 2gpa
- 20gpa
- 25gpa
Q23 | Multi walled CNT are concentric nano tubes.
- single
- double
- triple
- multiple
Q24 | The nano tube may without friction.
- slides
- overlaps
- under laps
- collides
Q25 | CNT is
- conductor
- insulator
- semi conductor
- impure metal