Unit 3 - Practice Quiz

1 What is the typical size range of nanomaterials?

2 Which of the following is a primary reason why nanomaterials exhibit different properties compared to their bulk counterparts?

3 A material in which all three dimensions are within the nanoscale range (less than 100 nm) is classified as:

4 Carbon Nanotubes (CNTs) and nanowires are examples of which dimensionality class?

5 Graphene is considered a __ nanomaterial.

6 Which allotrope of carbon is known as a 'Buckyball' and has the formula ?

7 What is the hybridization state of carbon atoms in Graphene?

8 Which of the following describes the structure of a Single-Walled Carbon Nanotube (SWCNT)?

9 The phenomenon where the optical properties (color) of nanoparticles change with size is primarily due to:

10 As the size of a semiconductor particle decreases to the nanoscale, its band gap energy ():

11 Which of the following is a 'Top-Down' approach for synthesizing nanomaterials?

12 Which method involves the condensation of atoms or molecules from a gas or liquid phase to form nanomaterials?

13 The melting point of gold nanoparticles compared to bulk gold is:

14 Chemical Vapor Deposition (CVD) is commonly used to synthesize:

15 In the context of composites, the continuous phase is called the __ and the discontinuous phase is called the __.

16 What is the primary function of the matrix in a composite material?

17 Which of the following is an example of a natural composite material?

18 Concrete is a classic example of which type of composite?

19 In Fiber Reinforced Composites (FRC), mechanical properties are typically:

20 Glass Fiber Reinforced Polymer (GFRP) is widely used because it offers:

21 The 'Rule of Mixtures' is used to predict:

22 Which type of composite structure consists of layers stacked with different orientations?

23 What is the main advantage of using Carbon Fiber Reinforced Polymers (CFRP) in aerospace applications?

24 Which nanomaterial is predominantly used in lithium-ion batteries to improve anode capacity and charge rates?

25 In a Metal Matrix Composite (MMC), the matrix is a metal and the reinforcement is typically:

26 Quantum Dots are widely used in:

27 The sol-gel method is primarily a __ technique.

28 Which property of nanomaterials makes them excellent catalysts?

29 A sandwich panel is a structural composite consisting of:

30 Ceramic Matrix Composites (CMCs) are designed primarily to improve the __ of monolithic ceramics.

31 The transport of electrons in a pristine carbon nanotube can be:

32 Which of the following describes 'whisker' reinforcement in composites?

33 Which nanomaterial is known as the strongest material ever tested?

34 Nano-carriers (e.g., liposomes or micelles) in pharmaceutical fields are used for:

35 What is the equation for the modulus of elasticity of a fiber-reinforced composite () in the longitudinal direction according to the Rule of Mixtures?

36 Which type of composite is generally used in automotive tires?

37 Fullerenes are soluble in:

38 In supercapacitors, nanomaterials are used to:

39 Which lithography technique uses a beam of electrons to create nanostructures?

40 The failure mechanism in laminar composites where layers separate is known as:

41 What is the specific role of TiO nanoparticles in sunscreen?

42 A composite containing reinforcements with dimensions in the nanometer range is specifically called a:

43 The synthesis method 'Laser Ablation' involves:

44 In Polymer Matrix Composites (PMCs), the maximum service temperature is usually limited by:

45 What is 'dispersion strengthening' in composites?

46 Multi-Walled Carbon Nanotubes (MWCNTs) consist of:

47 Which property allows nanoparticles to be used in magnetic hyperthermia for cancer treatment?

48 The aspect ratio of a fiber reinforcement is defined as:

49 Self-cleaning glass often utilizes a coating of nanomaterials that are:

50 Which of the following is an example of a structural composite?