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Nanomaterials Question & Answers

June 21, 2022 By WatElectronics

This article lists 75 Nanomaterials MCQs for Engineering Students. All the Nanomaterials Questions & Answers given below include solutions and links to the relevant topic. This is helpful for users who are preparing for their exams and interviews, or professionals who would like to brush up on the fundamentals of the Nanomaterials.

The word nano corresponds to 10^-9 of a unit that is one-billionth of a unit. The top-down approach and bottom-up approach are the two types of approaches that are used to reach the nanoscale. The nanostructure material may be quantum dots, nanoparticles, nanorods, nanofibers, nanotubes, and so on. 

When one dimension of the material is at least between one to hundred nanometers then that material is called a nanomaterial. The nanomaterials are divided into four classes they are 1-D, 2-D, 3-D, and 0-D dimensional that including quantum dots, nanoparticles, etc. 

The one-dimensional nanomaterials include nanotubes, nanorods, nanowires, etc. The two-dimensional nanomaterials include thin films, nanofilms, graphene nanosheets, etc. The three-dimensional nanomaterials include bundles of nanowires, bulk powders, nanoparticles, etc.  

The nanomaterials are of two types they are naturally occurring nanomaterials and manmade materials. The virus, sea spray, volcanos, etc are the naturally occurring nanomaterials, the cooking smoke, industrial effluents, etc are the incidental nanomaterials. The main disadvantage of nanomaterials is they are unstable and recycling is hard.  

1). Which one of the following materials cannot be seen by simple microscope?
HintThe advanced microscopic techniques are used in nanomaterials.
2). Which one of the following is an example for nanomaterial?
HintThe sand, cement, salts, ore, etc are the examples for bulk materials 
3). The creating of nanoscale materials by chemically or physically breaking down the larger materials is known as ______________ approach in nanotechnology?
HintThe top-down and bottom-up are the approaches in nan
Read more about Nanotechnology
4). Which of the following is an example for nanowires of metals?
HintThe nickel, gold, platinum, etc are the examples for nanowires of metals 
5). Which of the following is an example for nanowires of insulators?
HintThe silicon dioxide, titanium dioxide, etc are the examples for nanowires of insulators 
6). The polymeric nanoparticles come under _______________ dimensional nanomaterials?
HintThe polymeric nanoparticles, dendrimers, liposomes, fullerenes, etc are the zero-dimensional nanomaterials 
7). The bulk nanomaterials come under _______________ dimensional nanomaterials?
HintThe bulk nanomaterials come under three dimensional nanomaterials
8). Which one of the following neurotoxic effects comes under liposomes nanomaterial?
HintThe necrosis, hemorrhage, macrophage infiltration, etc are the neurotoxic effects that comes under liposomes nanomaterial 
9). What is the standard form of CNFs?
HintThe CNFs are used in energy devices, filtration, nanocomposites, etc 
10). Which one of the following is an example for top-down approach?
HintThe lithography, ball milling techniques are examples for top-down approach 
11). The measurement range of electron microscopy is around _____________ meters?
HintThe electron microscopy is one type of technique used to measure the particle sizes in nanometre dimension range 
12). Which one of the following is an example for molecular nanowires?
HintThe nanowires are also known as a quantum nanowire 
13). Which one of the following is an example for templates?
HintThe template assisted synthesis is one type of nanowire synthesi
14). The adsorption of molecules is high in _____________ materials?
HintThe nanomaterials are cannot be seen by simple microscope 
15). Which one of the following neurotoxic effects comes under quantum dots?
HintThe neurobehavioral toxicity, cognitive impairment, etc are the neurotoxic effects comes under quantum dots 
16). The measurement range of dynamic light scattering is around _____________ meters?
HintThe dynamic light scattering is one type of technique used to measure the particle sizes in the nanometre dimension range 
17). The spirals and springs come under ____________ dimensional nanomaterial?
HintThe nanomaterials categorized into four types based on dimensions they are 0-D, 1-D, 2-D, and 3-D nanomaterials 
18). The CVD reactors are categorized into ________________ types?
HintThe standard form of CVD is chemical vapour deposition 
19). Which one of the following is an example for nanowires of semiconductors?
HintThe silicon, indium phosphide, gallium nitrides are the example for nanowires of semiconductors 
20). Which one of the following is an example for bottom-up approach?
HintThe physical vapour deposition, chemical vapour deposition, etc are the examples for bottom-up approach 

Nanomaterials MCQs for Exams

21). What is the standard form of CNTs?
HintThe CNTs are used in actuators, thin film electronics, boat hulls, etc 
22). Which one of the following neurotoxic effects comes under dendrimers type nanomaterial?
HintThe apoptosis, decrease in locomotor function, inhibition of cell migration, etc are the neurotoxic effects comes under dendrimers type nanomaterial 
23). The iron oxide nanoparticles come under _____________ dimensional nanomaterials?
HintThe iron oxide nanoparticles, gold & silver nanoparticles, silica & titanium oxide, quantum dots all are comes under 0-Dimensional inorganic nanomaterials 
24). In which one of the following the number of constituting particles are from two to several thousand?
HintIn bulk materials the number of constituting particles are infinite  
25). The number of constituting particles are one for atom and many for molecules in _____________?
HintThe number of constituting particles are infinite in bulk materials
26). What is the standard form of NOMFET?
HintThe NOMFET is one type of nano particle field effect transistor 
27). What are the uses of carbon nanotubes?
HintThe carbon nano tubes used in composites, battery technologies, used for drug delivery, etc
28). How many layers does multi walled nanotubes consists of?
HintThe multi walled nanotubes exhibits semiconducting and metallic prope
29). How many tubes of graphite's does single walled nanotubes consists of?
HintThe nanotubes are of two types they are single walled and multi walled nano tubes 
30). In which one of the following nanomaterial the quantum confinement occurs in two directions?
HintThe nanotubes, nanowires, nanorods, etc are the examples for one dimensional nanomaterial 
31). Which one of the following neurotoxic effects comes under gold nanoparticles?
HintThe cognitive defects, astrogliosis, increases seizure activity, etc are the neurotoxic effects comes under gold nanoparticles 
32). The nano whiskers come under _____________ dimensional nanomaterials?
HintThe nano whiskers, carbon/titanium nanotubes, nanowires, nanofibers, etc all are coming under 1-Dimensional nanomaterials 
33). The measurement range of centrifugal liquid sedimentation is around _____________ meters?
HintThe centrifugal liquid sedimentation is one type of technique used to measure the particle sizes in nanometre dimension range 
34). Which one of the following is a type of electro spun nanofiber?
HintThe cellulose, bio-cellulose, GNF are the types of electros spun nanofibers 
35). Which one of the following neurotoxic effects comes under carbon nanotubes?
HintThe inhibition of cell proliferation, neuroinflammation, etc are the neurotoxic effects comes under carbon nanotubes 
36). The hybrid nanomaterials are categorized into ______________ types?
HintThe hybrid nanomaterials are categorized into three types they are organics-organics, organic inorganics, and inorganic-inorganic nanomaterials
37). Which one of the following comes under quantum dots?
HintThe metals, metal oxides, and quantum dots comes under inorganic nanomaterials 
38). Which one of the following comes under three-dimensional nanomaterial?
HintThe nanomaterials categorized into four types based on dimensions they are 0-D, 1-D, 2-D, and 3-D nanomaterials 
39). In which one of the following, the number of constituting particles are infinite?
HintIn nanoparticles the number of constituting particles are two to several thousands  
40). In which one of the following nanomaterial, the quantum confinement occurs in one direction?
HintThe ultrathin layer, ultra-thin film, etc are the examples for two dimensional nanomaterials 

Nanomaterials MCQs for Quiz

41). What is the standard form of HNTs?
HintThe HNTs are one type of nanotube used in actuators, thin film electronics, etc 
42). Which one of the following, neurotoxic effects comes under silver nanoparticles?
HintThe neuroinflammation, necrosis, apoptosis, etc are the neurotoxic effects comes under silver nanoparticles 
43). The polymeric nanofilms come under _____________ dimensional nanomaterials?
HintThe polymeric nanofilms, graphene oxide, etc all are coming under 2-Dimensional nanomaterials 
44). Which one of the following comes under inorganic nanoparticles?
HintThe liposomes, dendrimers, polymeric nanoparticles, etc comes under inorganic nanoparticles  
45). The measurement range of small angle X-ray scattering is around _____________ meters?
HintThe small angle X-ray scattering is one type of technique used to measure the particle sizes in nanometre dimension range 
46). The sodium chloride is an example of _________________ materials?
HintThe geometric structure of nanoparticles/nanoclusters is well defined structure and predictable 
47). Which of the following are the crystal structure decides?
HintThe atom/molecule and nanoparticles are well defined structures and they are predictable 
48). In which one of the following material the electronic structure is continuous?
HintIn atom/molecule and nanoparticles/nanoclusters the electronic structures are confined 
49). Which one of the following comes under two-dimensional nanomaterial?
HintThe nanomaterials categorized into four types based on dimensions they are 0-D, 1-D, 2-D, and 3-D nanomaterials 
50). In which one of the following nanomaterial the quantum confinement occurs in all three directions?
HintIn zero-dimensional nanomaterial the quantum confinement occurs in all three directions
Read more about Nanomaterials
51). Which one of the following neurotoxic effects comes under iron oxide nanoparticles?
HintThe nerve conduction alterations, neuroinflammation, synaptic transmission alterations, etc are the neurotoxic effects comes under iron oxide nanoparticles 
52). The metal nanoparticles and metal oxide-based nanoparticles are ______________ nanoparticles?
HintThe metal nanoparticles and metal oxide-based nanoparticles are inorganic nanoparticles
53). The material with three or two or one external dimensions in the nanoscale is known as _____________?
HintThe material with three or two or one external dimensions in the nanoscale is known as nano-object
54). The nanotubes are categorized into ______________ types?
HintThe carbon nanotubes are organic type of nanomaterials 
55). Which one of the following neurotoxic effects comes under silica nanoparticles?
HintThe cognitive impairment, cognitive dysfunction, synaptic transmission alterations, etc are the neurotoxic effects comes under silica nanoparticles 
56). The carbon nanotubes, graphene, and fullerenes are the ______________ based nanoparticles?
HintThe carbon nanotubes, graphene, and fullerenes are the carbon-based nanoparticles
57). The measurement range of particle tracking analysis method is around _____________ meters?
HintThe particle tracking analysis method is one type of technique used to measure the particle sizes in nanometre dimension range
58). Which one of the following is a type of hollow nanofiber?
HintThe nanorod is a type of solid nanofiber and the nanowire is an electrically conducting or semiconducting nanofiber 
59). The nanoobject with all three external dimensions in the nanoscale is known as ______________?
HintThe nanoobject with all three external dimensions in the nanoscale is known as nanoparticle
60). Which one of the following options comes under physical property of nanoparticle?
HintThe electrical and thermal conductivity, melting point comes under physical property of nanoparticle 

Nanomaterials MCQs for Interviews

61). What is the standard form of NGPs?
HintThe graphene particles improve reliability and thermal conductivity 
62). The size of the one-dimensional nanocrystals and clusters (quantum dots) is _____________ diameter?
HintThe size of the one-dimensional nanocrystals and clusters measures in nano meters 
63). Which one of the following neurotoxic effects comes under titanium oxide nanoparticles?
HintThe neuroinflammation, synaptic plasticity, genotoxicity, etc are the neurotoxic effects comes under titanium oxide nanoparticles 
64). Which one of the following is an electrically conducting or semiconducting nanofiber?
HintThe nanorod is a type of solid nanofiber and the nanotube is a type of hollow nanofiber 
65). Which one of the following materials can be seen by simple microscope?
HintThe nanomaterials cannot be seen by simple microscope or naked eye 
66). Which one of the following is an example for bulk material?
HintThe nano silica, nano alumina, nano titania, etc are the examples for nanomaterial 
67). The assembling of nano materials atom by atom or molecule by molecule is known as __________ approach?
HintThe creating of nanoscale materials by chemically or physically breaking down the larger materials is known as top-down approach in nanotechnology 
68). The gold bar and silver bar are the examples of _________________ materials?
HintThe geometric structure of bulk material is crystal structure decides 
69). The measurement range of atomic force microscopy method is around _____________ meters?
HintThe atomic force microscopy method is one type of technique used to measure the particle sizes in nanometre dimension range 
70). Which one of the following options comes under mechanical property of nanoparticle?
HintThe hardness, strength, capacity of tensile deformation comes under mechanical property of nanoparticle 
71). Which one of the following neurotoxic effects comes under polymeric nanoparticles?
HintThe neuronal apoptosis, neuroinflammation, increases oxidative stress, etc  are the neurotoxic effects comes under polymeric nanoparticles 
72). The NaCl and HCl are the examples of _________________ materials?
HintThe geometric structure of atom/molecule is well defined structure and predictable 
73). The adsorption of molecules is low in _____________ materials?
HintThe bulk materials can be seen by simple microscope or naked eye 
74). The absorption of molecules is fast in ________________ materials?
HintThe absorption and adsorption of molecules in nano materials are fast and high 
75). The measurement range of x-ray diffraction method is around _____________ meters?
HintThe x-ray diffraction method is one type of technique used to measure the particle sizes in nanometre dimension range   
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