Mechanical Properties Of Fluids Online Test | Exam Bashed

Class 11 Physics — Chapter 10: Mechanical Properties of Fluids Online Test

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Class 11 Physics: Mechanical Properties of Fluids Online Test (Paper 1)

Welcome to Paper 1! This is your foundation to build confidence and get you ready to tackle the challenges ahead.

  • Total Questions: 20
  • Time Allotted: 30 minutes
  • Passing Score: 40%
  • Randomization: No
  • Certificate: No
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 20

1. A soap bubble of radius is formed. Surface tension is . Calculate excess pressure inside the bubble.

2 / 20

2. A U-tube manometer contains mercury () and is connected to a pipeline carrying water. The difference in mercury levels is . Find gauge pressure in the pipe. (g = 9.8)

3 / 20

3. Which phenomenon demonstrates detergent’s role in reducing surface tension?

4 / 20

4. In bubbles, why is the pressure inside greater than outside?

5 / 20

5. Which of the following phenomena is due to poor wetting?

6 / 20

6. Which instrument is used to measure the angle of contact accurately?

7 / 20

7. A square wire frame of side is dipped into a soap solution and lifted out, forming a soap film. If surface tension is , find the work required to break the film.

8 / 20

8. A liquid rises to height in a capillary of radius . If , find surface tension.

9 / 20

9. The drop weight method of measuring surface tension is based on:

10 / 20

10. A water jet of velocity comes out of a pipe at ground level. Using Bernoulli’s principle, find the maximum height it can reach. ()

11 / 20

11. Kerosene () flows at velocity in a 0.03 m diameter pipe. Calculate Reynolds number.

12 / 20

12. Water () flows at velocity through a pipe of diameter . Calculate Reynolds number.

13 / 20

13. If the Reynolds number for flow in a pipe is 800, the flow is:

14 / 20

14. Water of density and viscosity flows through a pipe of diameter with average velocity . Calculate the Reynolds number and state the flow type.

15 / 20

15. Oil () flows in a tube of diameter at velocity . Calculate Reynolds number.

16 / 20

16. What will happen to the height of the mercury column in a barometer if taken to the top of a mountain?

17 / 20

17. A tank has oil of density up to a height of 5 m. Find the pressure at the bottom due to oil. (Take )

18 / 20

18. A solid block of area rests at the bottom of a tank 10 m deep filled with water. Find the total force acting on the top surface of the block. (Take )

19 / 20

19. In airplane hydraulic systems, Pascal’s principle is used to:

20 / 20

20. A container is filled with water () to a height of 10 m. Find the hydrostatic pressure at the bottom. (Take )

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Class 11 Physics: Mechanical Properties of Fluids Online Test (Paper 2)

Welcome to Paper 2! You’ve mastered the basics, and now it’s time to test your understanding with a more challenging set of questions.

Get new questions on each attempt

  • Total Questions: 30
  • Time Allotted: 45 minutes
  • Passing Score: 50%
  • Randomization: Yes
  • Certificate: No
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 30

1. In a rotational viscometer, viscosity is measured by:

2 / 30

2. If the atmospheric pressure is 760 mm Hg, what is the corresponding pressure in pascals? (Take , )

3 / 30

3. Water is flowing through a pipe of diameter with speed . The pipe narrows to . Find pressure difference between the two sections. ()

4 / 30

4. Which of the following agricultural practices improves water retention in soil through capillary action?

5 / 30

5. Which of the following best describes the significance of Reynolds number?

6 / 30

6. A mountain climber at 6000 m experiences reduced pressure compared to sea level. This reduction occurs because:

7 / 30

7. Which of the following liquids will rise highest in the same capillary tube?

8 / 30

8. Which law governs the pressure variation with depth in a static fluid?

9 / 30

9. In plant physiology, the rise of water in xylem vessels of plants is partly due to:

10 / 30

10. Which of the following methods is commonly used to measure surface tension of a liquid?

11 / 30

11. The gauge pressure at 50 m depth in the ocean () is: (Take )

12 / 30

12. Why are hydraulic brakes preferred in modern vehicles?

13 / 30

13. A sphere of radius falls in water (). If its density is , calculate terminal velocity.

14 / 30

14. Which of the following is NOT correct about viscosity?

15 / 30

15. Why do parachutes slow down a falling person?

16 / 30

16. Atmospheric pressure decreases with altitude because:

17 / 30

17. In the capillary rise method, the angle of contact is considered because:

18 / 30

18. Why is mercury commonly used in barometers and manometers instead of water?

19 / 30

19. If the radius of a capillary tube is doubled, the capillary rise will:

20 / 30

20. Surface energy of a liquid surface is defined as:

21 / 30

21. In ink pens, capillary action works effectively when:

22 / 30

22. Why do cavitation bubbles near a solid surface cause severe damage?

23 / 30

23. Stokes’ law assumes the liquid is:

24 / 30

24. A horizontal pipe carries oil (). At one end velocity is , pressure . At another end velocity is . Find pressure.

25 / 30

25. The variation of surface tension with temperature can be expressed as:

26 / 30

26. Why does mercury depress in a glass capillary tube?

27 / 30

27. A Venturi meter is connected to a horizontal pipe carrying water. If the area at the inlet is four times the area at the throat, the velocity at the throat compared to the inlet is:

28 / 30

28. A steel ball of radius moves through glycerin at velocity . If glycerin viscosity is , calculate the viscous drag force.

29 / 30

29. Which of the following is independent of the shape of the container?

30 / 30

30. If the Reynolds number for flow in a pipe is 800, the flow is:

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Class 11 Physics: Mechanical Properties of Fluids Online Test (Paper 3)

Welcome to Paper 3! You’ve warmed up—now it's time to step up your game and conquer the challenge with tougher questions!

Earn a certificate upon passing

Get new questions with every attempt

  • Total Questions: 50
  • Time Allotted: 75 minutes
  • Passing Score: 70%
  • Randomization: Yes
  • Certificate: Yes
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 50

1. Which of the following phenomena is due to poor wetting?

2 / 50

2. In ink pens, ink rises into the nib due to:

3 / 50

3. A gas exerts a pressure of . If the force exerted is 500 N, calculate the area of the surface.

4 / 50

4. Water () flows with velocity through a pipe of diameter . Calculate Reynolds number.

5 / 50

5. Which real-life example demonstrates both Pascal’s principle and hydraulic system application?

6 / 50

6. Which of the following conditions must be satisfied for terminal velocity to be achieved?

7 / 50

7. How does fluid mechanics help in environmental studies?

8 / 50

8. A cube of side 20 cm is immersed in water. Find difference in pressure between top and bottom faces. (ρ=1000, g=9.8)

9 / 50

9. The excess pressure inside a soap bubble of radius is 30 Pa. Find surface tension.

10 / 50

10. A liquid of density and viscosity flows in a pipe of diameter . If velocity = , calculate Reynolds number.

11 / 50

11. Hydrostatic pressure inside a liquid column increases:

12 / 50

12. A liquid exerts a pressure of at 5 m depth. Find the density of the liquid. (Take )

13 / 50

13. Which phenomenon in bubble dynamics is useful in cleaning delicate instruments (like surgical tools)?

14 / 50

14. In medical ultrasound imaging, microbubbles are used as contrast agents because:

15 / 50

15. If the diameter of a pipe is halved while keeping velocity and other factors constant, the Reynolds number will:

16 / 50

16. Bernoulli’s principle is derived from the principle of:

17 / 50

17. The work required to blow a soap bubble of radius with surface tension is:

18 / 50

18. Which of the following conditions is required for Stokes’ law to hold?

19 / 50

19. Stokes’ law for viscosity measurement using a falling-sphere method is:

20 / 50

20. A spherical water drop of radius is broken into 8 equal droplets. Calculate the increase in surface energy if surface tension is .

21 / 50

21. Capillary rise of a liquid is inversely proportional to:

22 / 50

22. Which of the following physical quantities is described by “Mechanical Properties of Fluids”?

23 / 50

23. The pressure at the bottom of a swimming pool 3 m deep is: (Take )

24 / 50

24. A spherical soap bubble of radius requires 0.01 J work to blow. Find surface tension.

25 / 50

25. Which type of manometer is used for measuring very small pressure differences?

26 / 50

26. Which of the following is NOT a unit of pressure?

27 / 50

27. Detergents are more effective in hot water because:

28 / 50

28. In a Venturi meter, diameters of inlet and throat are 0.3 m and 0.15 m. If pressure difference is , calculate flow rate of water. ()

29 / 50

29. In plant physiology, the rise of water in xylem vessels of plants is partly due to:

30 / 50

30. Which law/equation is more applicable in laminar pipe flow?

31 / 50

31. A pollen grain of radius settles in air. If , calculate terminal velocity.

32 / 50

32. If pressure at 5 m depth in a liquid is , then the pressure at 10 m depth is:

33 / 50

33. Why do larger raindrops fall faster than smaller raindrops?

34 / 50

34. Which natural phenomenon is best explained by capillary action?

35 / 50

35. Why do detergents and soaps clean oily clothes effectively?

36 / 50

36. Which factor determines the surface energy of a liquid?

37 / 50

37. A ball of radius 1 mm is moving in a viscous liquid with velocity 0.01 m/s. If the viscous drag experienced is , calculate the viscosity of the liquid.

38 / 50

38. A steel ball of radius is falling through glycerin of viscosity . The densities of steel and glycerin are and . Calculate its terminal velocity. ()

39 / 50

39. Which engineering system uses controlled bubbles to enhance mixing and chemical reactions?

40 / 50

40. Stokes’ law is valid only when the Reynolds number is:

41 / 50

41. In capillary rise method, the height of liquid column is inversely proportional to:

42 / 50

42. At the same depth in a liquid, pressure is:

43 / 50

43. A cylindrical vessel is filled with oil () up to a height of 5 m. Find the pressure at the bottom due to oil. ()

44 / 50

44. The effect of temperature on surface tension is important in which industrial process?

45 / 50

45. The Venturi meter is an application of the Venturi effect used to measure:

46 / 50

46. Which principle does an Ostwald viscometer use for viscosity measurement?

47 / 50

47. The derivation of Bernoulli’s equation starts with which fundamental law?

48 / 50

48. Which of the following fluids behaves like a Bingham plastic (requires a yield stress before flowing)?

49 / 50

49. A spherical pollen grain of radius settles in air with viscosity . If density difference is , calculate the terminal velocity. ()

50 / 50

50. Which of the following conditions favors transition to turbulence?

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Practice Mechanical Properties of Fluids MCQs
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Class 11 Physics — Chapter 10: Mechanical Properties of Fluids Online Test

The Mechanical Properties of Fluids Online Test is a perfect way for Class 11 students to understand how liquids and gases behave under different conditions of pressure and flow. This chapter beautifully connects real-life applications like flying of airplanes, floating of ships, and working of hydraulic brakes with Physics principles. By solving MCQs on Mechanical Properties of Fluids, you will gain a deeper understanding of Pascal’s law, Bernoulli’s theorem, viscosity, surface tension, and buoyancy.

These tests are based on the NCERT Class 11 Physics Chapter 10 and follow the latest CBSE and competitive exam pattern. Each test paper is timed, automatically checked, and shows your results instantly. Whether you are preparing for school exams, JEE, or NEET, this online test helps you evaluate your strengths and improve your weak areas through practice.

The test format is designed to make you feel like you are in a real exam environment. Each question is carefully prepared to test your clarity of formulas and concepts. Students who practice these questions regularly develop better visualization and analytical thinking — especially in numerical topics like fluid pressure, flow rate, and capillary action.

About this Online Test

The Chapter 10 Online Test is divided into three progressive papers. Start with basics, then move to mixed problems, and finally test your complete understanding with challenging questions.

  • Paper 1 — Basic Concepts: 20 questions · 30 min · Pass ≥ 40%
  • Paper 2 — Mixed Practice: 30 questions · 45 min · Pass ≥ 50% · New questions each attempt
  • Paper 3 — Advanced Challenge: 50 questions · 75 min · Pass ≥ 70% · Certificate after pass

Papers 2 and 3 bring fresh sets of questions on each reattempt, while Paper 1 remains fixed for quick revision. All tests include automatic evaluation, instant score display, and complete answer review.

Key Topics Covered (Mechanical Properties of Fluids)

  • Density and pressure of fluids
  • Pascal’s law and hydraulic lift applications
  • Archimedes’ principle and buoyancy
  • Bernoulli’s theorem and its practical uses
  • Equation of continuity and streamlines
  • Viscosity and Stoke’s law
  • Surface tension and capillary rise
  • Reynolds number and flow of liquids

Why You Should Take This Test

Many students find fluid mechanics confusing because they can’t visualize how pressure, force, and flow are related. This online test turns theory into understanding through simple but effective MCQs. It helps you:

  • Revise all major formulas related to fluid mechanics
  • Strengthen concepts of pressure, buoyancy, and viscosity
  • Develop logical thinking for problem-solving
  • Track improvement through instant scoring and retakes
  • Build accuracy and speed for board and competitive exams

Who Should Attempt

  • Class 11 CBSE/NCERT students revising Chapter 10
  • JEE and NEET aspirants preparing for Mechanics-based questions
  • Students who want more practice in numerical and conceptual topics
  • Teachers looking for ready-to-use timed chapter tests

Preparation Tips for Chapter 10 — Mechanical Properties of Fluids

  • Understand pressure-depth relation and Pascal’s law clearly.
  • Practice numerical problems on Bernoulli’s equation and continuity equation.
  • Revise definitions of viscosity, surface tension, and capillary action.
  • Attempt Paper 1 for concepts, Paper 2 for accuracy, and Paper 3 for full-chapter mastery.
  • Reattempt weak areas until you can solve questions confidently within time.

Before You Start

  • Use updated Chrome or Edge browser for smooth access.
  • Keep your internet connection stable during the test.
  • Don’t refresh or close the tab while attempting the paper.

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