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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

Good luck! 👍

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

2 / 30

2. Why are surface defects dangerous for fatigue life?

3 / 30

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

4 / 30

4. Which of the following is NOT an effect of cold working?

5 / 30

5. Which preventive measure is widely adopted in designing jet engine blades to combat creep?

6 / 30

6. What is ultimate tensile strength (UTS) of a material?

7 / 30

7. A copper wire and a steel wire of equal length and area are joined in parallel and subjected to a load of . If , ratio of extensions (steel:copper) is:

8 / 30

8. A beam of length , breadth , depth , is supported at ends and loaded at the center with . Find central deflection. ()

9 / 30

9. Which property is most critical in designing railway tracks?

10 / 30

10. What is shear modulus (also called modulus of rigidity) defined as?

11 / 30

11. Which engineering method is used to prevent crack growth in aircraft structures?

12 / 30

12. Which of the following defines longitudinal strain?

13 / 30

13. In forging metals, which type of deformation is primarily involved?

14 / 30

14. Which characteristic point on a stress–strain curve indicates the maximum load-carrying capacity of a material?

15 / 30

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

16 / 30

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

17 / 30

17. Which modulus of elasticity is most relevant for bones under compressive loads?

18 / 30

18. A steel rod of length and area is subjected to a tensile force of . Calculate strain energy stored.

19 / 30

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

20 / 30

20. A rod of length , cross-sectional area , is compressed longitudinally by . If Young’s modulus , find applied force.

21 / 30

21. Which characteristic feature is observed in brittle material’s stress–strain curve?

22 / 30

22. What branch of physics does the chapter "Mechanical Properties of Solids" mainly deal with?

23 / 30

23. Why does fracture toughness improve with higher temperature in many metals?

24 / 30

24. A cantilever beam of length , breadth , depth is loaded at the free end with . If , calculate deflection at the free end.

25 / 30

25. In torsional testing, the analog of Hooke’s law relates:

26 / 30

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

27 / 30

27. Why does fatigue failure occur in metals?

28 / 30

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

29 / 30

29. Which of the following constants appears in Hooke’s law equation?

30 / 30

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

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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

Good luck! 👍

1 / 50

1. A material that is both malleable and ductile is:

2 / 50

2. Why is steel considered nearly perfectly linear elastic?

3 / 50

3. The formula is derived from:

4 / 50

4. Why is annealing done after cold working?

5 / 50

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

6 / 50

6. Why is elasticity important in manufacturing cutting tools?

7 / 50

7. Shear stress is defined as:

8 / 50

8. A copper wire is cold drawn to reduce its diameter. Which changes occur?

9 / 50

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

10 / 50

10. Which property is improved more effectively by annealing than strain hardening?

11 / 50

11. A wire elongates when a load of is applied. If its length is , cross-sectional area , calculate .

12 / 50

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

13 / 50

13. Why is knowledge of plastic deformation essential in engineering design?

14 / 50

14. Why is elasticity an important property in making sports shoes?

15 / 50

15. Which of the following is correct about elastic region and yield point?

16 / 50

16. Which apparatus is commonly used to measure Young’s modulus of a wire in laboratories?

17 / 50

17. Which of the following laboratory devices is commonly used to test Hooke’s law in wires?

18 / 50

18. Which type of stress is produced when a wire is stretched by a force applied along its length?

19 / 50

19. Which property of solids explains why railway tracks have gaps left between them?

20 / 50

20. Which material property is most important for aircraft components subjected to cyclic loading?

21 / 50

21. Why does fatigue failure occur in metals?

22 / 50

22. Which law governs linear elastic deformation?

23 / 50

23. Why is titanium alloy used in bone implants?

24 / 50

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

25 / 50

25. If creep rate is given by , and activation energy increases, what happens to creep rate?

26 / 50

26. What is the main difference between elastic and plastic deformation?

27 / 50

27. Why is study of permanent deformation important in engineering?

28 / 50

28. Why does ductile fracture occur more slowly than brittle fracture?

29 / 50

29. What is cold working?

30 / 50

30. A wire is stretched by when a load of is applied. If the same wire is stretched by , what load is required, assuming Hooke’s law holds?

31 / 50

31. Plastic deformation is accompanied by which atomic process?

32 / 50

32. How does grain size affect creep resistance at high temperatures?

33 / 50

33. How is strain hardening useful in the production of beverage cans?

34 / 50

34. What kind of deformation is observed in clay when molded into bricks?

35 / 50

35. In Hooke’s law, stress is directly proportional to strain only up to:

36 / 50

36. 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?

37 / 50

37. Which of the following is an example of a brittle material?

38 / 50

38. Which of the following constants appears in Hooke’s law equation?

39 / 50

39. A steel wire of length , radius is stretched by force . If energy stored is , find Young’s modulus.

40 / 50

40. Which of the following pairs correctly matches ductile and brittle material behaviour?

41 / 50

41. What does toughness of a material represent?

42 / 50

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

43 / 50

43. Which of the following techniques increases creep resistance of metals?

44 / 50

44. A metal has , . Find Poisson’s ratio.

45 / 50

45. If a material has Young’s modulus and Poisson’s ratio , what is its shear modulus ?

46 / 50

46. A steel rod of length is fixed at both ends. A temperature rise of is produced. If coefficient of linear expansion and , calculate stress developed.

47 / 50

47. What happens to Young’s modulus in the plastic region?

48 / 50

48. Which mechanical property is most crucial in designing aircraft bodies?

49 / 50

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

50 / 50

50. Why is measurement of elastic moduli important in engineering?

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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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