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. Glycerin () flows in a tube of diameter with velocity . Calculate Reynolds number.

2 / 30

2. In soil, capillary rise is more effective when:

3 / 30

3. In turbulent flow:

4 / 30

4. A soap bubble of radius has excess pressure . Surface tension is measured using:

5 / 30

5. Water flows through a pipe of diameter at velocity . If density is and viscosity , determine Reynolds number and flow type.

6 / 30

6. Which of the following is a limitation of Bernoulli’s principle?

7 / 30

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

8 / 30

8. In dry climates, plants with deep roots survive because:

9 / 30

9. Water flows through a horizontal pipe. At a point, velocity = and pressure = . At another point where velocity = , find the pressure. ()

10 / 30

10. Atomizers used in perfumes and sprays work on Bernoulli’s principle because:

11 / 30

11. In a hydraulic press, a force of 200 N is applied on a piston of area . The area of the larger piston is . What is the output force?

12 / 30

12. Why does dishwashing become more effective with hot water and detergent?

13 / 30

13. Which statement is correct regarding temperature and viscosity?

14 / 30

14. The pressure at a depth in a liquid of density is given by:

15 / 30

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

16 / 30

16. A steel tank is filled with oil (ρ=850). Pressure gauge at depth 2 m reads how much (in kPa)? (g=9.8)

17 / 30

17. Bernoulli’s equation relates to which type of flow?

18 / 30

18. Why do small liquid drops take a spherical shape?

19 / 30

19. A horizontal pipe carries water with a speed of at pressure . At a constriction, speed rises to . Find pressure at the constriction. ()

20 / 30

20. A hydraulic brake system applies a pressure of to the brake shoes. If the area of each brake piston is , what force acts on each brake shoe?

21 / 30

21. A zero contact angle indicates that the liquid:

22 / 30

22. Which safety issue is commonly faced in hydraulic brakes?

23 / 30

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

24 / 30

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

25 / 30

25. Derivation of Stokes’ law involves solving which type of fluid equations?

26 / 30

26. Why does water form a concave meniscus in a glass tube?

27 / 30

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

28 / 30

28. Why do raindrops not grow indefinitely large?

29 / 30

29. Terminal velocity is defined as:

30 / 30

30. The molecular cause of surface tension 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. In bubble dynamics, the collapse of bubbles in a liquid (cavitation) can be harmful because:

2 / 50

2. A hydraulic lift has a mechanical advantage of 50. If an input force of 200 N is applied, the output force is:

3 / 50

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

4 / 50

4. The height of capillary rise is inversely proportional to:

5 / 50

5. A spherical drop of radius is divided into smaller drops of equal size. If the initial surface energy was , what is the final surface energy?

6 / 50

6. Pressure at a point in a liquid depends on:

7 / 50

7. The Venturi meter measures:

8 / 50

8. An input piston of area is used to apply a force of 60 N. Find the pressure and also the force produced on an output piston of area .

9 / 50

9. Wetting of glass by water is an example of:

10 / 50

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

11 / 50

11. Why are hydraulic brakes preferred in modern vehicles?

12 / 50

12. Why do detergents spread rapidly over water surface?

13 / 50

13. Why are hydraulic systems more efficient than mechanical lever systems?

14 / 50

14. In applying Bernoulli’s principle to airplane wings, a misconception is that:

15 / 50

15. Which factor is responsible for mercury showing a depression in a capillary tube?

16 / 50

16. If a liquid has an acute angle of contact, then in a capillary tube it will:

17 / 50

17. Which of the following is not an application of capillary rise?

18 / 50

18. The variation of pressure with height in a fluid under gravity is expressed as:

19 / 50

19. In a pipe, velocity of water is at pressure . At another point, velocity is . Find pressure at the second point. ()

20 / 50

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

21 / 50

21. A soap bubble of radius has excess pressure of . Calculate surface tension.

22 / 50

22. A steel ball of radius falls in oil of viscosity . If density difference is , calculate its terminal velocity.

23 / 50

23. A gas flows at in a duct of diameter . If density = and viscosity = , calculate Reynolds number.

24 / 50

24. In carburetors, the Venturi effect helps by:

25 / 50

25. A container holds water of density up to a height of 4 m. What is the pressure at the bottom of the container due to water? (Take )

26 / 50

26. If the terminal velocity of a sphere of radius is , then what will be the terminal velocity if radius is doubled, keeping all other conditions the same?

27 / 50

27. A capillary of radius shows a rise of in water at . Calculate surface tension.

28 / 50

28. In a hydraulic system, the pressure applied on the input piston is . If the output piston has an area of , find the output force.

29 / 50

29. If the radius of a capillary tube is halved, the height of capillary rise:

30 / 50

30. For a water droplet of radius , excess pressure inside is:

31 / 50

31. For a liquid-solid interface, the relation between surface tensions and contact angle is given by:

32 / 50

32. A water tank has a hole 2 m below the free surface. Find velocity of efflux. (g = 9.8)

33 / 50

33. In a fluid, pressure at depth h is given by . If depth = 500 m in sea water (ρ=1030), find pressure (in atm). (1 atm = 1.013×10^5 Pa).

34 / 50

34. The pressure difference between two depths in water at 8 m and 12 m is: (Take )

35 / 50

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

36 / 50

36. At terminal velocity, the acceleration of the falling body is:

37 / 50

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

38 / 50

38. If two particles of radii and are suspended in a fluid, the ratio of their terminal velocities is:

39 / 50

39. Which of the following flows corresponds to Reynolds number ?

40 / 50

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

41 / 50

41. A liquid has viscosity and density . Calculate its kinematic viscosity.

42 / 50

42. A spherical raindrop of radius falls at terminal velocity. Viscosity of air = , density of water , air density negligible. Find terminal velocity. (g = 9.8)

43 / 50

43. Which viscometer measures viscosity by observing the falling speed of a ball through a liquid?

44 / 50

44. A swimmer is 5 m below the surface of a swimming pool. What hydrostatic pressure acts on him due to water? ()

45 / 50

45. Which of the following explains why two containers of different shapes but same depth have the same pressure at the bottom?

46 / 50

46. The flow of blood through arteries can be modeled using:

47 / 50

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

48 / 50

48. When Reynolds number approaches infinity (), it implies:

49 / 50

49. In Bernoulli’s derivation, work done by pressure forces on a fluid element is balanced by:

50 / 50

50. Which part of a detergent molecule lowers water’s surface tension?

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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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