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Class 11 Physics — Chapter 9: Mechanical Properties of Solids Online Test

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Class 11 Physics: Mechanical Properties of Solids 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

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1 / 20

1. A material initially stressed to shows a stress of after 100 s at constant strain. What is the relaxation time ?

2 / 20

2. A boiler tube operates under stress of at . If the creep rate follows Norton’s law , what happens if stress doubles?

3 / 20

3. In an S–N curve (stress vs. number of cycles), what does the horizontal region represent?

4 / 20

4. In which of the following processes is strain hardening most beneficial?

5 / 20

5. Plastic deformation is accompanied by which atomic process?

6 / 20

6. For submarine hull design, which modulus is most relevant?

7 / 20

7. A material has Young’s modulus and bulk modulus . Find Poisson’s ratio .

8 / 20

8. A wire of length , area , elongates by under a load of . Find Young’s modulus.

9 / 20

9. A wire of length and area is stretched with stress of . If , calculate elongation.

10 / 20

10. What type of deformation occurs in the yield region?

11 / 20

11. Which industrial test uses Hooke’s law principle to check stiffness of materials?

12 / 20

12. A copper wire of length and cross-sectional area is subjected to a tensile force of . If , what is the elongation?

13 / 20

13. Which graph best represents the equation ?

14 / 20

14. The stress–strain graph in Hooke’s law region is:

15 / 20

15. A wire of length and cross-sectional area elongates by under a force of . What is the stress and strain?

16 / 20

16. Plasticity in solids refers to:

17 / 20

17. Which property is most important for designing wires used in electrical transmission?

18 / 20

18. Which of the following is an example of a linear elastic material?

19 / 20

19. A wire of length and area is subjected to a tensile force of . If its elongation is , what is the Young’s modulus of the material?

20 / 20

20. A steel wire of length and radius is subjected to a tensile force of . If Young’s modulus of steel is , what is the elongation of the wire?

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Class 11 Physics: Mechanical Properties of Solids 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.

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

Good luck! 👍

1 / 30

1. Why is fracture mechanics applied in the design of bridges?

2 / 30

2. What is Young’s modulus defined as?

3 / 30

3. Which of the following is an example of a linear elastic material?

4 / 30

4. What is the definition of elastic limit?

5 / 30

5. Which of the following statements is correct about elastic bodies?

6 / 30

6. In the elastic region, the relation between stress () and strain () is given by:

7 / 30

7. Which modulus is most relevant for describing elasticity in solids under torsion?

8 / 30

8. Why is mild steel preferred for making machine parts that undergo repeated loading?

9 / 30

9. Which type of materials typically show strain hardening?

10 / 30

10. Which factor causes metals to become brittle at low temperatures?

11 / 30

11. Which property is tested in tensile strength experiments?

12 / 30

12. Which equation represents strain in plastic region?

13 / 30

13. What property of steel makes it more useful than iron in construction?

14 / 30

14. For submarine hull design, which modulus is most relevant?

15 / 30

15. In the equation , what does represent?

16 / 30

16. Which property of cartilage makes it suitable as a shock absorber in joints?

17 / 30

17. Which of the following materials has very high shear modulus?

18 / 30

18. Which statement is true about yield point?

19 / 30

19. Which of the following materials has a well-defined UTS and breaking point?

20 / 30

20. Which property describes the resistance of a solid body to change in its shape or volume?

21 / 30

21. Elasticity plays a key role in which of the following phenomena?

22 / 30

22. Which of the following materials shows high malleability?

23 / 30

23. Why is stress relaxation test significant for materials used in gaskets and seals?

24 / 30

24. A steel rod of length and cross-sectional area is subjected to a tensile force of . If , calculate elongation.

25 / 30

25. A steel rod of cross-sectional area is subjected to a tensile force of . If , what is the strain produced?

26 / 30

26. Elasticity of a material depends on:

27 / 30

27. Which of the following best represents non-linear elastic behavior?

28 / 30

28. Why is yield strength an important property in engineering design?

29 / 30

29. Why are aluminum alloys used in long-span roof trusses despite being less stiff than steel?

30 / 30

30. In forming processes like rolling and forging, permanent deformation is achieved by:

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Class 11 Physics: Mechanical Properties of Solids 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

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1 / 50

1. A material has bulk modulus and shear modulus . Find its Young’s modulus .

2 / 50

2. Why is studying plastic deformation important in material science?

3 / 50

3. Which of the following materials shows a very well-defined yield point?

4 / 50

4. A specimen shows primary, secondary, and tertiary creep stages. Which stage is most dangerous for failure?

5 / 50

5. What is stress relaxation?

6 / 50

6. What is plastic deformation?

7 / 50

7. Which design feature helps prevent creep in power plant boiler tubes?

8 / 50

8. Which heat treatment method increases both strength and hardness similar to strain hardening?

9 / 50

9. What is the SI unit of strain?

10 / 50

10. Why is elasticity important in the process of forging?

11 / 50

11. For an incompressible material, Poisson’s ratio is:

12 / 50

12. Why is cold working directly associated with strain hardening?

13 / 50

13. Which example best shows linear elasticity in daily life?

14 / 50

14. Which of the following correctly represents the condition for linear elasticity?

15 / 50

15. Which of the following materials shows a large plastic deformation before fracture in its stress–strain curve?

16 / 50

16. Why is strain hardening applied in the manufacture of springs?

17 / 50

17. The resistance of a body to a change in shape without a change in volume is measured by:

18 / 50

18. A wire of original length elongates by under load. If stress is , what is Young’s modulus from testing?

19 / 50

19. Which of the following statements is correct?

20 / 50

20. A wire of length and diameter is subjected to a load of . If Young’s modulus = , find the strain energy per unit volume.

21 / 50

21. A steel rod of cross-sectional area is subjected to a tensile force of . If , what is the strain produced?

22 / 50

22. How does strain hardening benefit the production of bolts and fasteners?

23 / 50

23. A rod of length and cross-sectional area is subjected to tensile force of . If Young’s modulus is , calculate extension.

24 / 50

24. Why do blacksmiths heat metal before hammering it into shape?

25 / 50

25. In a tensile test, why is stress–strain curve plotted?

26 / 50

26. Which modulus is most relevant in designing metal sheets for stamping and deep drawing processes?

27 / 50

27. Why are single-crystal superalloys used in turbine blades?

28 / 50

28. A component at shows creep strain rate of . If operating temperature increases to , creep rate becomes . What is the ratio of creep rates?

29 / 50

29. Which modulus is most relevant in studying deformation of blood vessels under blood pressure?

30 / 50

30. The importance of stress-strain study in construction lies in:

31 / 50

31. How does the rate of loading affect plastic deformation?

32 / 50

32. Why is fracture mechanics applied in the design of bridges?

33 / 50

33. A rod is subjected to uniform stress of . Volume = . . Find strain energy stored.

34 / 50

34. A steel wire of length and cross-sectional area is stretched by a force of . If , what is the strain?

35 / 50

35. What type of deformation occurs in the yield region?

36 / 50

36. In designing airbags for cars, which property is most relevant?

37 / 50

37. In linear elastic deformation, which mathematical relation holds true?

38 / 50

38. Which of the following correctly describes the elastic region?

39 / 50

39. What does the stress–strain relationship describe?

40 / 50

40. Which process reduces the risk of fracture by relieving internal stresses?

41 / 50

41. If a wire obeys Hooke’s law, then the ratio of stress to strain is:

42 / 50

42. Which of the following best describes permanent deformation?

43 / 50

43. A turbine blade operates at . If the activation energy for creep is , and gas constant , what factor reduces creep rate when temperature drops to ?

44 / 50

44. What is non-linear elastic deformation?

45 / 50

45. Why is elasticity important in the manufacturing of automobile springs?

46 / 50

46. If a material has bulk modulus and volumetric strain = , what pressure is applied?

47 / 50

47. Which property describes the resistance of a solid body to change in its shape or volume?

48 / 50

48. Why is steel used as reinforcement in concrete structures?

49 / 50

49. Which material has very low fracture toughness?

50 / 50

50. Which formula best represents the true stress during strain hardening?

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Practice Mechanical Properties of Solids MCQs
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Class 11 Physics — Chapter 9: Mechanical Properties of Solids Online Test

The Mechanical Properties of Solids Online Test helps Class 11 students understand how different materials behave under the action of forces. This chapter is not just theoretical — it connects Physics to the real world through concepts like stress, strain, elasticity, Young’s modulus, and Hooke’s law. Many students find this topic tricky at first, but once they start solving practical-based questions, it becomes one of the most scoring chapters in Physics.

These online tests are based on the NCERT Class 11 Physics Chapter 9 — Mechanical Properties of Solids and follow the latest CBSE pattern. Each test gives you an exam-like experience with multiple-choice questions, a timer, and instant results. You can attempt them anytime, anywhere, and track your progress with each paper.

By regularly attempting this Mechanical Properties of Solids Online Test, you’ll strengthen your understanding of elasticity and material behavior. Each question is selected carefully to test your clarity on formulas, graphs, and applications. Students who practice these papers consistently gain confidence and perform better in school exams, JEE, and NEET.

About this Online Test

The Chapter 9 Online Test is divided into three timed papers that gradually increase in level. You can start with basics, move to mixed difficulty, and finally challenge yourself with advanced-level problems.

  • Paper 1 — Fundamentals: 20 questions · 30 min · Pass ≥ 40%
  • Paper 2 — Concept Practice: 30 questions · 45 min · Pass ≥ 50% · Random questions each attempt
  • Paper 3 — Advanced Test: 50 questions · 75 min · Pass ≥ 70% · Certificate on passing

All papers are auto-graded and include a detailed answer review. Papers 2 and 3 offer new sets of questions every time you attempt, making your learning continuous and engaging.

Key Topics Covered (Mechanical Properties of Solids)

  • Elasticity and plasticity
  • Stress and strain — longitudinal, shear, and volumetric
  • Hooke’s law and stress–strain curve
  • Elastic moduli: Young’s modulus, bulk modulus, rigidity modulus
  • Poisson’s ratio and its significance
  • Elastic potential energy in a stretched wire
  • Applications of elasticity in daily life and industries

Why You Should Take This Test

Understanding mechanical properties through reading is not enough. You need to practice to remember formulas and learn when to apply them. This online test helps you:

  • Master formula-based and concept-based problems
  • Revise all important elasticity and stress-strain questions
  • Improve accuracy with time-based challenges
  • Get instant feedback and result analysis
  • Build confidence for board and competitive exams

Who Should Attempt

  • Class 11 CBSE/NCERT students revising Chapter 9
  • JEE/NEET aspirants focusing on mechanics-based questions
  • Students who find elasticity and modulus numericals confusing
  • Teachers looking for ready-to-use online chapter tests

Preparation Tips for Chapter 9

  • Memorize all elasticity formulas like Y = Stress / Strain, K = Volume Stress / Volume Strain, etc.
  • Understand the shape of the stress-strain graph and its regions.
  • Study the difference between elastic and plastic behavior of materials.
  • Attempt Paper 1 after reading NCERT; attempt Paper 2 & 3 for deeper understanding.
  • Revisit incorrect answers and revise related concepts from your notes.

Before You Start

  • Do not refresh or close the tab while taking the test.
  • Use Chrome or Edge browser for smooth performance.
  • Ensure a stable internet connection during the test.

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