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. Which conversion is correct?

2 / 30

2. The spherical shape of small liquid drops is due to:

3 / 30

3. A hydraulic machine has two pistons. The small piston has an area of and the large piston has an area of . If a force of 100 N is applied on the small piston, calculate the force produced on the large piston.

4 / 30

4. Why do hydraulic brakes work more efficiently than mechanical brakes?

5 / 30

5. Capillary action in soil helps plants absorb water because:

6 / 30

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

7 / 30

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

8 / 30

8. A capillary tube of radius dipped in kerosene (T = 0.025 N/m, ρ = 800). Find height rise. ()

9 / 30

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

10 / 30

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

11 / 30

11. Which assumption of Bernoulli’s theorem is not valid in turbulent flow?

12 / 30

12. A streamline in fluid flow is defined as:

13 / 30

13. A steel ball of radius falls in oil of viscosity . If density of steel = and density of oil = , calculate terminal velocity.

14 / 30

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

15 / 30

15. Bernoulli’s principle does not apply in which of the following cases?

16 / 30

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

17 / 30

17. Air () flows with velocity through a pipe of diameter . Find Reynolds number.

18 / 30

18. Pressure can also be expressed in terms of energy density because:

19 / 30

19. Why does water spread on a clean glass surface but form droplets on an oily surface?

20 / 30

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

21 / 30

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

22 / 30

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

23 / 30

23. If surface tension of water is , find surface energy per unit area.

24 / 30

24. In sedimentation analysis, the viscosity of the medium must be known because:

25 / 30

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

26 / 30

26. Why can’t water be used in barometers instead of mercury?

27 / 30

27. A spherical raindrop of radius falls through air with viscosity . Density of water = , air density negligible. Find terminal velocity. (g = 9.8)

28 / 30

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

29 / 30

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

30 / 30

30. A hydraulic lift has two pistons. The smaller piston has an area of and the larger piston has an area of . If a load of 8000 N is to be lifted, calculate the force required on the smaller piston.

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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!

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

Good luck! 👍

1 / 50

1. A liquid has surface tension . If the surface area increases by , calculate the work done.

2 / 50

2. The SI unit of surface tension is:

3 / 50

3. A ball of radius falls in oil of viscosity with a velocity . If density difference between ball and oil is , check if this velocity is terminal velocity using Stokes’ law. ()

4 / 50

4. A capillary tube of radius is dipped in water (). Assuming , calculate the rise of water in the tube.

5 / 50

5. A particle of radius falls in a liquid of viscosity . If density difference = , calculate its terminal velocity. ()

6 / 50

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

7 / 50

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

8 / 50

8. Which of the following best describes a non-Newtonian fluid?

9 / 50

9. The SI unit of pressure is:

10 / 50

10. Which statement is correct about the relation between surface tension and surface energy?

11 / 50

11. Which factor is neglected in Bernoulli’s principle but is important in real-world flows?

12 / 50

12. The mathematical expression of Reynolds number is:

13 / 50

13. A cylindrical vessel is filled with oil () up to 6 m height. Find the hydrostatic pressure at the bottom. (Take )

14 / 50

14. The Redwood viscometer is used to measure:

15 / 50

15. Why does a soap film contract after formation?

16 / 50

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

17 / 50

17. In particle size analysis, smaller particles settle more slowly because:

18 / 50

18. Why can some insects walk on the surface of water?

19 / 50

19. A U-tube manometer connected to a gas container shows the mercury level on the container side higher by 15 cm compared to the open side. The atmospheric pressure is 76 cm Hg. What is the gas pressure?

20 / 50

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

21 / 50

21. In a hydraulic press, the input piston has an area of and the output piston has an area of . If a force of 150 N is applied on the small piston, calculate the force on the large piston.

22 / 50

22. The aneroid barometer differs from a mercury barometer because:

23 / 50

23. Which of the following is almost incompressible?

24 / 50

24. The Reynolds number is defined as:

25 / 50

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

26 / 50

26. Water on a wax-coated leaf shows contact angle closer to:

27 / 50

27. A cylindrical tank of height 6 m is filled with water (). Find the pressure at the bottom of the tank. (Take )

28 / 50

28. A swimming pool is 2 m deep. What is the pressure at the bottom due to water? ()

29 / 50

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

30 / 50

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

31 / 50

31. A hydraulic lift has a large piston of area and a small piston of area . If a car of mass 1500 kg is to be lifted, calculate minimum force on small piston.

32 / 50

32. Why are bubbles used in drug delivery systems in medicine?

33 / 50

33. A spherical raindrop of radius 2 mm falls with terminal velocity 0.5 m/s. Find viscosity of air. (ρwater = 1000, ρair negligible)

34 / 50

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

35 / 50

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

36 / 50

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

37 / 50

37. A small sphere falls in oil and reaches a terminal velocity of . If the radius of the sphere is doubled, keeping all other factors same, the new terminal velocity is:

38 / 50

38. Which factor is responsible for collapse of small bubbles faster than large ones?

39 / 50

39. Why is the roof of a house sometimes blown away during storms?

40 / 50

40. Why does viscosity of liquids decrease with rise in temperature?

41 / 50

41. An iron ball of radius 0.1 m is immersed at 15 m depth in water. Find the pressure acting on its surface. (Take )

42 / 50

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

43 / 50

43. A cube of side 0.2 m is immersed fully in water. If water density is , calculate the force acting on the top face at depth 2 m. (Take )

44 / 50

44. In bubble dynamics, the collapse of bubbles in a liquid (cavitation) can be harmful because:

45 / 50

45. The smoke rising straight from an incense stick is an example of which regime?

46 / 50

46. Density () of a fluid is defined as:

47 / 50

47. The hydrophilic part of a detergent molecule is:

48 / 50

48. Which of the following assumptions is made in deriving Stokes’ law?

49 / 50

49. 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?

50 / 50

50. In turbulent flow:

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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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