SSC JE Exam - properties classification of fluids newtonian non newtonian viscosity compressible incompressible fluids Online Test (MCQ Quiz)

1. Which fundamental property of a fluid relates to its resistance to deformation under shear stress?

A) Density B) Viscosity C) Surface Tension D) Compressibility

2. A fluid that obeys Newton's law of viscosity is classified as:

A) Non-Newtonian fluid B) Ideal fluid C) Newtonian fluid D) Bingham plastic

3. For a Newtonian fluid, the shear stress is directly proportional to:

A) Pressure gradient B) Temperature C) Rate of shear strain D) Density

4. Which of the following is an example of a Newtonian fluid?

A) Blood B) Toothpaste C) Water D) Paint

5. A fluid that does not follow Newton's law of viscosity is known as a:

A) Newtonian fluid B) Ideal fluid C) Real fluid D) Non-Newtonian fluid

6. Shear thinning fluids are a type of:

A) Newtonian fluid B) Bingham plastic C) Non-Newtonian fluid D) Ideal fluid

7. In a shear thinning fluid, viscosity decreases with:

A) Increasing temperature B) Decreasing pressure C) Increasing shear rate D) Decreasing shear rate

8. Which of the following is an example of a shear thinning fluid?

A) Honey B) Ketchup C) Air D) Motor oil

9. Shear thickening fluids, also known as dilatants, exhibit:

A) Decreasing viscosity with increasing shear rate B) Constant viscosity regardless of shear rate C) Increasing viscosity with increasing shear rate D) Zero viscosity at low shear rates

10. An example of a shear thickening fluid is:

A) Water B) Cornstarch and water mixture C) Gasoline D) Alcohol

11. Bingham plastics require a minimum amount of stress, called the yield stress, before they start to:

A) Compress B) Evaporate C) Flow D) Boil

12. Which of the following is a characteristic of a Bingham plastic fluid?

A) Obeys Newton's law of viscosity B) Behaves like a solid below a certain yield stress C) Viscosity decreases with shear rate D) Viscosity increases with shear rate

13. Toothpaste is often cited as an example of a fluid that behaves like a:

A) Newtonian fluid B) Shear thinning fluid C) Bingham plastic D) Shear thickening fluid

14. A fluid whose density remains constant regardless of changes in pressure is termed:

A) Compressible fluid B) Viscous fluid C) Incompressible fluid D) Non-Newtonian fluid

15. For most liquids at normal temperatures and pressures, they can be reasonably approximated as:

A) Compressible fluids B) Gases C) Incompressible fluids D) Non-Newtonian fluids

16. Gases are generally considered to be:

A) Incompressible fluids B) Compressible fluids C) Ideal fluids D) Newtonian fluids

17. The property of a fluid that allows its volume to change significantly under pressure is called:

A) Viscosity B) Surface tension C) Compressibility D) Density

18. Which property is crucial when analyzing fluid flow at high speeds, approaching or exceeding the speed of sound?

A) Viscosity B) Surface Tension C) Compressibility D) Capillarity

19. The bulk modulus (K) is inversely related to the:

A) Viscosity B) Compressibility C) Density D) Surface Tension

20. A fluid with zero viscosity is known as an:

A) Real fluid B) Ideal fluid C) Non-Newtonian fluid D) Incompressible fluid

21. Ideal fluids are a theoretical concept that possess no:

A) Mass B) Volume C) Viscosity D) Compressibility

22. Which type of fluid exhibits both viscosity and compressibility?

A) Ideal fluid B) Incompressible fluid C) Real fluid D) Newtonian fluid

23. The absolute viscosity of a fluid is also known as:

A) Kinematic viscosity B) Dynamic viscosity C) Surface tension D) Specific gravity

24. Dynamic viscosity (μ) has units of:

A) m²/s B) Pa·s C) N/m D) kg/m³

25. Kinematic viscosity (ν) is defined as the ratio of dynamic viscosity to:

A) Pressure B) Temperature C) Density D) Surface Tension

26. The units of kinematic viscosity are typically:

A) Pa·s B) kg/m³ C) m²/s D) N/m

27. For a fluid, viscosity generally decreases with increasing temperature for:

A) Gases B) Liquids C) Both gases and liquids D) Neither gases nor liquids

28. For gases, viscosity generally increases with increasing temperature due to:

A) Increased intermolecular attraction B) Increased molecular momentum transfer C) Decreased molecular collisions D) Decreased kinetic energy

29. Tissues like blood and plasma are examples of which type of fluid?

A) Newtonian B) Bingham Plastic C) Non-Newtonian D) Ideal

30. The property that causes a fluid surface to behave like a stretched elastic membrane is:

A) Viscosity B) Compressibility C) Surface Tension D) Adhesion

31. Surface tension is significant in phenomena like:

A) Flow in large pipes B) Formation of droplets and bubbles C) Compressible flow D) High-speed aerodynamics

32. Which of the following statements about compressibility is true?

A) Liquids are highly compressible, while gases are nearly incompressible. B) Gases are highly compressible, while liquids are nearly incompressible. C) Both liquids and gases are incompressible. D) Both liquids and gases are equally compressible.

33. The compressibility factor (Z) is used to describe the deviation of a real gas from:

A) Ideal fluid behavior B) Newtonian fluid behavior C) Incompressible fluid behavior D) Viscous fluid behavior

34. A fluid that exhibits a constant viscosity at all shear rates is:

A) Non-Newtonian B) Newtonian C) Bingham plastic D) Thixotropic

35. Thixotropic fluids are a subclass of non-Newtonian fluids where viscosity:

A) Increases with time under constant shear B) Decreases with time under constant shear C) Remains constant over time D) Becomes zero after prolonged shear

36. An example of a thixotropic fluid is:

A) Water B) Paint C) Honey D) Air

37. Rheopectic fluids are non-Newtonian fluids where viscosity:

A) Increases with time under constant shear B) Decreases with time under constant shear C) Decreases with shear rate D) Increases with shear rate

38. Pseudo-plastic fluids are another name for:

A) Shear thickening fluids B) Bingham plastics C) Shear thinning fluids D) Dilatants

39. Which classification of fluid is characterized by a constant viscosity, regardless of shear rate or time?

A) Non-Newtonian B) Newtonian C) Compressible D) Incompressible

40. In the context of fluid properties, 'density' refers to:

A) Resistance to flow B) Mass per unit volume C) Ability to change volume under pressure D) Force per unit area

41. The Reynolds number is a dimensionless quantity that helps predict flow patterns. It depends on density, velocity, characteristic length, and:

A) Surface Tension B) Compressibility C) Viscosity D) Specific Heat

42. A fluid that has negligible surface tension effects can often be treated as:

A) A Newtonian fluid B) An ideal fluid C) An incompressible fluid D) A highly viscous fluid

43. The term 'fluid' encompasses both:

A) Solids and liquids B) Liquids and gases C) Gases and plasma D) Solids and gases

44. Which property is primarily responsible for the 'stickiness' or internal friction within a fluid?

A) Density B) Compressibility C) Viscosity D) Surface Tension

45. In fluid mechanics, an 'incompressible' fluid assumes that its:

A) Viscosity is zero B) Density is constant C) Shear stress is zero D) Surface tension is infinite

46. The classification of fluids into Newtonian and Non-Newtonian is based on their response to:

A) Temperature changes B) Pressure changes C) Shear stress and strain rate D) Gravitational forces

47. When considering the flow of gases at very high Mach numbers, which fluid property becomes critically important?

A) Surface Tension B) Viscosity C) Compressibility D) Density

48. A fluid that requires a finite amount of shear stress to initiate flow is a:

A) Newtonian fluid B) Ideal fluid C) Bingham plastic D) Shear thinning fluid

49. The study of fluids that deform continuously under applied shear stress, regardless of magnitude, defines:

A) Solid mechanics B) Fluid mechanics C) Thermodynamics D) Aerodynamics

50. Which of the following is NOT a classification of fluids based on their rheological properties?

A) Newtonian B) Compressible C) Non-Newtonian D) Bingham Plastic

properties classification of fluids newtonian non newtonian viscosity compressible incompressible fluids - Online Test

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