properties classification of fluids newtonian non newtonian viscosity compressible incompressible fluids - Question Bank
1. Which of the following is NOT a classification of fluids based on their rheological properties?
2. The study of fluids that deform continuously under applied shear stress, regardless of magnitude, defines:
3. A fluid that requires a finite amount of shear stress to initiate flow is a:
4. When considering the flow of gases at very high Mach numbers, which fluid property becomes critically important?
5. The classification of fluids into Newtonian and Non-Newtonian is based on their response to:
6. In fluid mechanics, an 'incompressible' fluid assumes that its:
7. Which property is primarily responsible for the 'stickiness' or internal friction within a fluid?
8. The term 'fluid' encompasses both:
9. A fluid that has negligible surface tension effects can often be treated as:
10. The Reynolds number is a dimensionless quantity that helps predict flow patterns. It depends on density, velocity, characteristic length, and:
11. In the context of fluid properties, 'density' refers to:
12. Which classification of fluid is characterized by a constant viscosity, regardless of shear rate or time?
13. Pseudo-plastic fluids are another name for:
14. Rheopectic fluids are non-Newtonian fluids where viscosity:
15. An example of a thixotropic fluid is:
16. Thixotropic fluids are a subclass of non-Newtonian fluids where viscosity:
17. A fluid that exhibits a constant viscosity at all shear rates is:
18. The compressibility factor (Z) is used to describe the deviation of a real gas from:
19. Which of the following statements about compressibility is true?
20. Surface tension is significant in phenomena like:
21. The property that causes a fluid surface to behave like a stretched elastic membrane is:
22. Tissues like blood and plasma are examples of which type of fluid?
23. For gases, viscosity generally increases with increasing temperature due to:
24. For a fluid, viscosity generally decreases with increasing temperature for:
25. The units of kinematic viscosity are typically:
26. Kinematic viscosity (ν) is defined as the ratio of dynamic viscosity to:
27. Dynamic viscosity (μ) has units of:
28. The absolute viscosity of a fluid is also known as:
29. Which type of fluid exhibits both viscosity and compressibility?
30. Ideal fluids are a theoretical concept that possess no:
31. A fluid with zero viscosity is known as an:
32. The bulk modulus (K) is inversely related to the:
33. Which property is crucial when analyzing fluid flow at high speeds, approaching or exceeding the speed of sound?
34. The property of a fluid that allows its volume to change significantly under pressure is called:
35. Gases are generally considered to be:
36. For most liquids at normal temperatures and pressures, they can be reasonably approximated as:
37. A fluid whose density remains constant regardless of changes in pressure is termed:
38. Toothpaste is often cited as an example of a fluid that behaves like a:
39. Which of the following is a characteristic of a Bingham plastic fluid?
40. Bingham plastics require a minimum amount of stress, called the yield stress, before they start to:
41. An example of a shear thickening fluid is:
42. Shear thickening fluids, also known as dilatants, exhibit:
43. Which of the following is an example of a shear thinning fluid?
44. In a shear thinning fluid, viscosity decreases with:
45. Shear thinning fluids are a type of:
46. A fluid that does not follow Newton's law of viscosity is known as a:
47. Which of the following is an example of a Newtonian fluid?
48. For a Newtonian fluid, the shear stress is directly proportional to:
49. A fluid that obeys Newton's law of viscosity is classified as:
50. Which fundamental property of a fluid relates to its resistance to deformation under shear stress?