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

2 / 30

2. 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.

3 / 30

3. A dam is built to hold water of depth 40 m. What is the hydrostatic pressure at the base of the dam? ()

4 / 30

4. A horizontal Venturi tube has diameters of and . If velocity at the wide end is , find velocity at the throat.

5 / 30

5. A liquid of density rises to in a capillary tube of radius . Find the surface tension. ()

6 / 30

6. A steel ball of radius is released in oil and attains a terminal velocity of . If the radius is doubled, its new terminal velocity will be approximately:

7 / 30

7. In the atmosphere, the variation of pressure with height is approximately:

8 / 30

8. If Reynolds number is very small (), flow is termed as:

9 / 30

9. During the transition from laminar to turbulent flow, the flow exhibits:

10 / 30

10. The SI unit of viscosity is:

11 / 30

11. The molecular cause of surface tension is:

12 / 30

12. For , the flow is:

13 / 30

13. A liquid jet emerges from a hole at velocity . Find maximum height the jet can reach. (g = 9.8)

14 / 30

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

15 / 30

15. Why do ships made of steel float on water despite being denser than water?

16 / 30

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

17 / 30

17. Which property of bubbles is most important in ultrasound imaging?

18 / 30

18. 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 )

19 / 30

19. A diver is 25 m deep in a lake of water. Calculate the absolute pressure he experiences if atmospheric pressure is and water density is . (Take )

20 / 30

20. Which soil type will retain maximum water by capillary action?

21 / 30

21. Which instrument is used to measure atmospheric pressure?

22 / 30

22. Superhydrophobic surfaces, such as lotus leaves, have contact angles:

23 / 30

23. Stokes’ law is not applicable when:

24 / 30

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

25 / 30

25. Which statement is correct about both liquids and gases?

26 / 30

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

27 / 30

27. 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. ()

28 / 30

28. Which of the following decreases surface tension of water?

29 / 30

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

30 / 30

30. The excess pressure inside a water droplet of radius is . Find surface tension.

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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 a capillary tube viscometer, the volume flow rate for laminar flow is given by:

2 / 50

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

3 / 50

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

4 / 50

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

5 / 50

5. Which of the following fluids has the highest viscosity at room temperature?

6 / 50

6. Which of the following is a direct application of Pascal’s law?

7 / 50

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

8 / 50

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

9 / 50

9. The hydrostatic pressure at 10 m depth in mercury is: ()

10 / 50

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

11 / 50

11. Stokes’ law assumes the liquid is:

12 / 50

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

13 / 50

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

14 / 50

14. A drop of mercury (T=0.465 N/m) of radius 1 mm splits into 1000 equal droplets. Calculate increase in surface energy.

15 / 50

15. A ball of radius is dropped in a fluid and experiences a viscous drag of . If its velocity is , find the viscosity of the fluid.

16 / 50

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

17 / 50

17. The primary cause of surface tension is:

18 / 50

18. In medical applications, the Venturi mask works on the Venturi effect to:

19 / 50

19. In a hydraulic system, the input piston area is and the output piston area is . If an input force of 100 N is applied, calculate the output force.

20 / 50

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

21 / 50

21. A liquid of density and viscosity flows with velocity in a pipe of diameter . Find Reynolds number.

22 / 50

22. The pressure difference between two points in a fluid at depths and is:

23 / 50

23. In ocean currents, Reynolds numbers are typically of the order of:

24 / 50

24. A horizontal pipe has two sections of diameters and . If velocity at the wider end is , find velocity at the narrow end.

25 / 50

25. Sedimentation techniques using Stokes’ law are useful in:

26 / 50

26. The SI unit of viscosity is:

27 / 50

27. An acute contact angle () means:

28 / 50

28. In Reynolds’ experiment, the flow is laminar when the dye filament:

29 / 50

29. The height of water column in a barometer tube is 10 m. If replaced with mercury, what will be the height? ()

30 / 50

30. The relationship between surface energy and surface tension is:

31 / 50

31. The bottom of a tank filled with two liquids has water (2 m depth) and oil () of 3 m depth above it. Find the total pressure at the bottom. ()

32 / 50

32. Which of the following fluids is often modeled as non-Newtonian in biological studies?

33 / 50

33. Why does Bernoulli’s principle fail for real fluids?

34 / 50

34. If air pressure at sea level is , what is the approximate air pressure at a height of 5 km? (Assume , with scale height ).

35 / 50

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

36 / 50

36. Capillary action is the phenomenon in which:

37 / 50

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

38 / 50

38. Which principle explains why toothpaste can be squeezed out of a closed tube by pressing at any point?

39 / 50

39. The molecular cause of surface tension is:

40 / 50

40. A hydraulic lift is used to raise a car of mass 1500 kg. If the area of the large piston is , find the pressure needed in the system. (Take )

41 / 50

41. Stokes’ law is not applicable when:

42 / 50

42. Pascal’s law states that:

43 / 50

43. Which of the following is a correct assumption of Bernoulli’s principle?

44 / 50

44. A hydraulic jack has an input piston of radius 2 cm and an output piston of radius 20 cm. If a force of 100 N is applied on the smaller piston, find the output force.

45 / 50

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

46 / 50

46. Water at () flows through a tube of diameter at velocity . Calculate Reynolds number.

47 / 50

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

48 / 50

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

49 / 50

49. Terminal velocity is defined as:

50 / 50

50. In a U-tube manometer, if both ends are open to the atmosphere, the mercury levels in both arms:

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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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