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? Nanomaterials Bulk materials Both a and b None of the above None Hint 2). Which one of the following is an example for nanomaterial? Nano silica Sand Cement All of the above None Hint 3). The creating of nanoscale materials by chemically or physically breaking down the larger materials is known as ______________ approach in nanotechnology? Top-down Bottom-up Bottom-down None of the above None Hint Read more about Nanotechnology 4). Which of the following is an example for nanowires of metals? Silicon Nickel DNA None of the above None Hint 5). Which of the following is an example for nanowires of insulators? Silicon dioxide Nickel DNA None of the above None Hint 6). The polymeric nanoparticles come under _______________ dimensional nanomaterials? Zero One Two Three None Hint 7). The bulk nanomaterials come under _______________ dimensional nanomaterials? Zero One Two Three None Hint 8). Which one of the following neurotoxic effects comes under liposomes nanomaterial? Cognition defects Necrosis Astrogliosis None of the above None Hint 9). What is the standard form of CNFs? Carbon Nanofibers Carbon Nanographene Carbide Nanographene None of the above None Hint 10). Which one of the following is an example for top-down approach? Ball milling technique Sol-gel process Both a and b None of the above None Hint 11). The measurement range of electron microscopy is around _____________ meters? 1 m 1 nm 10 m 12 mm None Hint 12). Which one of the following is an example for molecular nanowires? Silicon dioxide Titanium dioxide DNA None of the above None Hint 13). Which one of the following is an example for templates? Nano channel glass Gold Silver None of the above None Hint 14). The adsorption of molecules is high in _____________ materials? Nanomaterials Bulk materials Both a and b None of the above None Hint 15). Which one of the following neurotoxic effects comes under quantum dots? Cell function damage Increases oxidative stress Both a and b None of the above None Hint 16). The measurement range of dynamic light scattering is around _____________ meters? 1 m 5-500 nm 10 m 12 mm None Hint 17). The spirals and springs come under ____________ dimensional nanomaterial? One Two Three None of the above None Hint 18). The CVD reactors are categorized into ________________ types? One Two Three Four None Hint 19). Which one of the following is an example for nanowires of semiconductors? Silicon dioxide Titanium dioxide Silicon None of the above None Hint 20). Which one of the following is an example for bottom-up approach? Ball milling technique Sol-gel process Both a and b None of the above None Hint Nanomaterials MCQs for Exams 21). What is the standard form of CNTs? Carbon Nanotubes Carbon Nanographene Tubes Carbide Nanographene Tubes None of the above None Hint 22). Which one of the following neurotoxic effects comes under dendrimers type nanomaterial? Cognition defects Astrogliosis Apoptosis None of the above None Hint 23). The iron oxide nanoparticles come under _____________ dimensional nanomaterials? Zero One Two Three None Hint 24). In which one of the following the number of constituting particles are from two to several thousand? Atom/molecule Nanomaterials Bulk materials None of the above None Hint 25). The number of constituting particles are one for atom and many for molecules in _____________? Atom/molecule Nanomaterials Bulk materials None of the above None Hint 26). What is the standard form of NOMFET? Nanoparticle Organic Memory Filed Effect Transistor Nanographene Organic Memory Filed Effect Transistor Nanocarbide Organic Memory Filed Effect Transistor None of the above None Hint 27). What are the uses of carbon nanotubes? Used in composites Used in battery technology Both a and b None of the above None Hint 28). How many layers does multi walled nanotubes consists of? One Two Three Multi None Hint 29). How many tubes of graphite's does single walled nanotubes consists of? One Two Three Multi None Hint 30). In which one of the following nanomaterial the quantum confinement occurs in two directions? One dimensional Two dimensional Three dimensional Zero dimensional None Hint 31). Which one of the following neurotoxic effects comes under gold nanoparticles? Cognition defects Necrosis Genotoxicity None of the above None Hint 32). The nano whiskers come under _____________ dimensional nanomaterials? Zero One Two Three None Hint 33). The measurement range of centrifugal liquid sedimentation is around _____________ meters? 1 m 5-500 m 20 nm 12 mm None Hint 34). Which one of the following is a type of electro spun nanofiber? Cellulose CNT SWCNTs None of the above None Hint 35). Which one of the following neurotoxic effects comes under carbon nanotubes? Lipid peroxidization Apoptosis Both a and b None of the above None Hint 36). The hybrid nanomaterials are categorized into ______________ types? One Two Three Four None Hint 37). Which one of the following comes under quantum dots? CdSe ZnS Both a and b None of the above None Hint 38). Which one of the following comes under three-dimensional nanomaterial? Embedded clusters Equiaxed crystallites Both a and b None of the above None Hint 39). In which one of the following, the number of constituting particles are infinite? Atom/molecule Nanomaterials Bulk materials None of the above None Hint 40). In which one of the following nanomaterial, the quantum confinement occurs in one direction? One dimensional Two dimensional Three dimensional Zero dimensional None Hint Nanomaterials MCQs for Quiz 41). What is the standard form of HNTs? Halloysite Nanotubes Halloysite Nanographene Tubes Halloysite Nanoparticle Tubes None of the above None Hint 42). Which one of the following, neurotoxic effects comes under silver nanoparticles? Neuroinflammation Astrogliosis Cognition defects None of the above None Hint 43). The polymeric nanofilms come under _____________ dimensional nanomaterials? Zero One Two Three None Hint 44). Which one of the following comes under inorganic nanoparticles? Ferritin nanoparticles Micelles Both a and b None of the above None Hint 45). The measurement range of small angle X-ray scattering is around _____________ meters? 5 nm 5-500 m 20 m 12 mm None Hint 46). The sodium chloride is an example of _________________ materials? Atom/molecule Nanomaterials Bulk materials None of the above None Hint 47). Which of the following are the crystal structure decides? Atom/molecule Nanomaterials Bulk materials None of the above None Hint 48). In which one of the following material the electronic structure is continuous? Atom/molecule Nanomaterials Bulk materials None of the above None Hint 49). Which one of the following comes under two-dimensional nanomaterial? Nano discs Nanolayers Both a and b None of the above None Hint 50). In which one of the following nanomaterial the quantum confinement occurs in all three directions? One dimensional Two dimensional Three dimensional Zero dimensional None Hint Read more about Nanomaterials 51). Which one of the following neurotoxic effects comes under iron oxide nanoparticles? Necrosis Nerve conduction alterations Both a and b None of the above None Hint 52). The metal nanoparticles and metal oxide-based nanoparticles are ______________ nanoparticles? Organic Inorganic Both a and b None of the above None Hint 53). The material with three or two or one external dimensions in the nanoscale is known as _____________? Nanoparticle Nanorod Nano-object Nanotube None Hint 54). The nanotubes are categorized into ______________ types? One Two Three Four None Hint 55). Which one of the following neurotoxic effects comes under silica nanoparticles? Cognitive impairment Cognitive dysfunction Both a and b None of the above None Hint 56). The carbon nanotubes, graphene, and fullerenes are the ______________ based nanoparticles? Organic Inorganic Carbon based None of the above None Hint 57). The measurement range of particle tracking analysis method is around _____________ meters? 25 nm 5-500 m 20 m 12 mm None Hint 58). Which one of the following is a type of hollow nanofiber? Nanowire Nanorod Nanotube None of the above None Hint 59). The nanoobject with all three external dimensions in the nanoscale is known as ______________? Nanowire Nanotube Nanorod Nanoparticle None Hint 60). Which one of the following options comes under physical property of nanoparticle? Melting point Hardness Strength Capacity of tensile deformation None Hint Nanomaterials MCQs for Interviews 61). What is the standard form of NGPs? Nanographene Platelets Nanographene particles Nano particles None of the above None Hint 62). The size of the one-dimensional nanocrystals and clusters (quantum dots) is _____________ diameter? 1-10nm 1-7mm 1-10m None of the above None Hint 63). Which one of the following neurotoxic effects comes under titanium oxide nanoparticles? Increased oxidative stress Nerve conduction alterations Synaptic transmission alteration None of the above None Hint 64). Which one of the following is an electrically conducting or semiconducting nanofiber? Nanowire Nanorod Nanotube None of the above None Hint 65). Which one of the following materials can be seen by simple microscope? Nanomaterials Bulk materials Both a and b None of the above None Hint 66). Which one of the following is an example for bulk material? Nano silica Sand Nano alumina All of the above None Hint 67). The assembling of nano materials atom by atom or molecule by molecule is known as __________ approach? Top-down Bottom-up Bottom-down None of the above None Hint 68). The gold bar and silver bar are the examples of _________________ materials? Atoms Nanomaterials Bulk materials None of the above None Hint 69). The measurement range of atomic force microscopy method is around _____________ meters? 25 m 5-500 m 20 m 1 nm None Hint 70). Which one of the following options comes under mechanical property of nanoparticle? Melting point Electrical conductivity Thermal conductivity Capacity of tensile deformation None Hint 71). Which one of the following neurotoxic effects comes under polymeric nanoparticles? Neuronal apoptosis Necrosis Haemorrhage None of the above None Hint 72). The NaCl and HCl are the examples of _________________ materials? Atom/molecule Nanomaterials Bulk materials None of the above None Hint 73). The adsorption of molecules is low in _____________ materials? Nanomaterials Bulk materials Both a and b None of the above None Hint 74). The absorption of molecules is fast in ________________ materials? Nanomaterials Bulk materials Both a and b None of the above None Hint 75). The measurement range of x-ray diffraction method is around _____________ meters? 25 m 5-500 m 20 m 1 nm None Hint Please fill in the comment box below. Time's up
