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. Bernoulli’s equation can be written as:

2 / 30

2. For water in a clean glass tube, the meniscus is concave because:

3 / 30

3. Which flow regime is expected in blood capillaries where ?

4 / 30

4. A dam holds water of depth 50 m. Find the pressure at the base of the dam. (Take )

5 / 30

5. A sphere of radius is falling in a fluid of viscosity . If its terminal velocity is and density difference between sphere and fluid is , verify Stokes’ law. ()

6 / 30

6. If the angle of contact , the liquid:

7 / 30

7. An acute contact angle () means:

8 / 30

8. A spherical raindrop of radius has surface tension . Calculate excess pressure inside.

9 / 30

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

10 / 30

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

11 / 30

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

12 / 30

12. Reynolds number is important in engineering because:

13 / 30

13. Which of the following is NOT a limitation of Stokes’ law?

14 / 30

14. A velocity of is observed at the throat of a Venturi meter with inlet velocity . Find the pressure difference. ()

15 / 30

15. If a flow in a pipe has , it is classified as:

16 / 30

16. In soap bubbles, detergents help by:

17 / 30

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

18 / 30

18. Which of the following is an example of shear-thickening (dilatant) fluid?

19 / 30

19. The Reynolds number is defined as:

20 / 30

20. Mercury in a glass capillary tube shows a contact angle of about:

21 / 30

21. Which natural phenomenon ensures seeds in soil can absorb moisture even without rainfall?

22 / 30

22. When a small sphere falls in a viscous fluid, it eventually reaches terminal velocity because:

23 / 30

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

24 / 30

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

25 / 30

25. A U-tube is filled with water on one side and mercury () on the other side. If water column height is 1.36 m, find the equivalent height of mercury column.

26 / 30

26. In Bernoulli’s equation, the pressure energy term per unit volume is:

27 / 30

27. The height of a mercury column in a barometer at sea level is about:

28 / 30

28. A liquid flows through a capillary tube of radius and length . If the pressure difference across the tube is and the viscosity of the liquid is , calculate the volume flow rate.

29 / 30

29. Which of the following does NOT affect terminal velocity?

30 / 30

30. A tank is filled with water to a depth of 12 m. Calculate the pressure at the bottom of the tank. ()

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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 law/equation is more applicable in laminar pipe flow?

2 / 50

2. Which of the following is NOT a limitation of Stokes’ law?

3 / 50

3. In Poiseuille’s equation, the flow rate through a capillary depends most strongly on:

4 / 50

4. Which factor does NOT affect Reynolds number?

5 / 50

5. A raindrop falling through air does not keep accelerating but soon moves with a constant velocity because:

6 / 50

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

7 / 50

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

8 / 50

8. Which of the following does NOT affect terminal velocity?

9 / 50

9. The SI unit of surface energy is:

10 / 50

10. Which real-life example can be explained using Bernoulli’s principle?

11 / 50

11. Which of the following examples best demonstrates turbulent flow?

12 / 50

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

13 / 50

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

14 / 50

14. The pressure in a hydraulic lift is 4000 Pa. If the area of the large piston is , what is the force exerted on it?

15 / 50

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

16 / 50

16. Which of the following is a characteristic of streamline (laminar) flow?

17 / 50

17. For a smooth glass tube, flow is laminar up to Reynolds number:

18 / 50

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

19 / 50

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

20 / 50

20. Which of the following examples best demonstrates laminar flow?

21 / 50

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

22 / 50

22. Why does it become difficult to breathe at high altitudes?

23 / 50

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

24 / 50

24. A tank has kerosene of density to a height of 4 m. Calculate the hydrostatic pressure at the bottom. (Take )

25 / 50

25. In fluid mechanics, the constant velocity reached by an air bubble rising in water is also called:

26 / 50

26. The work required to double the surface area of a soap film of area and surface tension is:

27 / 50

27. For liquids, which property has the greatest effect on viscosity?

28 / 50

28. In a siphon, water rises to a height of above reservoir level before falling. What minimum velocity at outlet is required to sustain flow? ()

29 / 50

29. Which of the following is NOT a pressure-measuring device?

30 / 50

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

31 / 50

31. In a hydraulic lift, the input piston area is and the output piston area is . If an operator applies 400 N on the small piston, what load is lifted?

32 / 50

32. A steel ball of radius is dropped in a liquid and attains terminal velocity of . If the densities of steel and liquid are and , find the viscosity of the liquid.

33 / 50

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

34 / 50

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

35 / 50

35. Which statement is correct regarding molecules inside the liquid compared to those at the surface?

36 / 50

36. In an Ostwald viscometer, the viscosity of a liquid is determined relative to:

37 / 50

37. Which instrument is used to measure atmospheric pressure?

38 / 50

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

39 / 50

39. In applying Stokes’ law to very small particles like colloids, which factor limits its accuracy?

40 / 50

40. For a particle to reach terminal velocity, the Reynolds number should be:

41 / 50

41. In turbulent flow:

42 / 50

42. 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. ()

43 / 50

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

44 / 50

44. A small ball of radius has a terminal velocity of in a liquid of viscosity . If density of liquid = , calculate density of the ball.

45 / 50

45. Two soap bubbles of radii and are joined by a tube. Which bubble will shrink?

46 / 50

46. The excess pressure inside a soap bubble of radius is:

47 / 50

47. For Reynolds number equal to 2500, the flow regime is:

48 / 50

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

49 / 50

49. 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?

50 / 50

50. In Reynolds’ experiment, the flow becomes turbulent when Reynolds number:

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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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