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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

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1 / 30

1. Ductile materials can be identified from their stress–strain curve because:

2 / 30

2. Which of the following materials exhibits significant plastic flow before failure?

3 / 30

3. A cube of side is subjected to a tangential displacement of at its top surface. What is the shear strain?

4 / 30

4. Why are materials with high ductility preferred for earthquake-resistant structures?

5 / 30

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

6 / 30

6. Which graph best represents the equation ?

7 / 30

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

8 / 30

8. Why is excessive cold working avoided?

9 / 30

9. Why are metals heated before forging or rolling?

10 / 30

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

11 / 30

11. Which of the following real-life factors demonstrate temperature affecting elasticity?

12 / 30

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

13 / 30

13. A rod of length , area , and Young’s modulus is stretched by . Calculate the applied force.

14 / 30

14. What does a higher value of Young’s modulus imply about a material?

15 / 30

15. Which graph correctly represents linear elastic deformation?

16 / 30

16. A steel wire of length and radius is stretched by a force of . If , calculate the elongation.

17 / 30

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

18 / 30

18. What is the definition of elastic limit?

19 / 30

19. A mild steel sample has yield stress of . If its cross-sectional area is , what is the load required to reach yield point?

20 / 30

20. Which equation represents strain in plastic region?

21 / 30

21. Which method is generally used to measure shear modulus of a wire?

22 / 30

22. The ratio in Hooke’s law corresponds to:

23 / 30

23. Which of the following is an almost perfectly elastic material?

24 / 30

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

25 / 30

25. A steel rod of length , diameter , is subjected to a tensile force of . It elongates by . Calculate Young’s modulus.

26 / 30

26. If a material has UTS of and breaking stress of , which statement is correct?

27 / 30

27. Which of the following statements is correct?

28 / 30

28. Why is proportionality limit lower than elastic limit?

29 / 30

29. A wire of length and cross-sectional area is stretched by under a load. If , what is the applied force?

30 / 30

30. The SI unit of all elastic moduli (Y, G, K) is:

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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. Which of the following relations is correct for Young’s modulus in terms of stress and strain?

2 / 50

2. A steel rod of length and cross-sectional area is subjected to a tensile force of . If elongation is , find Young’s modulus.

3 / 50

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

4 / 50

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

5 / 50

5. Which property of a material is most directly measured using Hooke’s law in a tensile test?

6 / 50

6. Which equation best describes permanent strain after yielding?

7 / 50

7. Which of the following quantities can be calculated in materials testing using Hooke’s law?

8 / 50

8. Which type of strain is produced in a rod stretched along its length?

9 / 50

9. A stress of produces a strain of . What is the Young’s modulus of the material?

10 / 50

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

11 / 50

11. A steel wire of radius and length is clamped at one end and twisted through an angle of . Calculate the shear modulus if the torque applied is .

12 / 50

12. Which physical quantity is defined as force per unit area?

13 / 50

13. Which material shows nearly perfect linear elasticity?

14 / 50

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

15 / 50

15. Which property makes elastic catheters effective in medical applications?

16 / 50

16. Which of the following is a dimensionless quantity?

17 / 50

17. Which property of alloys is most critical for preventing creep in jet engines?

18 / 50

18. Which of the following is an example of strain hardening applied in sports equipment?

19 / 50

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

20 / 50

20. What does the breaking point represent in a stress–strain curve?

21 / 50

21. Which mechanical property is most important for designing earthquake-resistant buildings?

22 / 50

22. Which of the following statements is true regarding the three elastic moduli?

23 / 50

23. A steel wire of length and radius is subjected to a tensile force of . If , what is the elongation?

24 / 50

24. Which one of the following conditions will increase elasticity of a solid?

25 / 50

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

26 / 50

26. Which everyday example demonstrates plastic deformation after yield point?

27 / 50

27. In rolling processes, why is elasticity important?

28 / 50

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

29 / 50

29. Which one of the following is true about UTS and breaking stress?

30 / 50

30. Why is silicone rubber used in making prosthetic limbs?

31 / 50

31. A steel wire of length , radius , elongates by under a load of . Find Young’s modulus.

32 / 50

32. Which type of strain is produced when a wire is stretched by a force along its length?

33 / 50

33. A wire of length and radius is stretched under a force of . If the increase in length is , calculate Young’s modulus.

34 / 50

34. Why does a spring return to its original length after compression?

35 / 50

35. Which of the following is the property of being permanently stretched without rupture?

36 / 50

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

37 / 50

37. Which process of manufacturing depends directly on plastic deformation of metals?

38 / 50

38. In the elastic region of the stress–strain curve, the relationship between stress and strain is:

39 / 50

39. Which modulus plays the most important role in designing pressure cookers?

40 / 50

40. Why is hot rolling of steel easier than cold rolling?

41 / 50

41. A steel rod of length , cross-section , is subjected to tensile force . Calculate the strain energy stored in the rod. .

42 / 50

42. What is plastic deformation?

43 / 50

43. Which of the following explains why glass shatters under impact but may deform under slow pressure?

44 / 50

44. Which of the following stress-strain relations corresponds to non-linear elasticity?

45 / 50

45. Which of the following is the most important factor affecting creep rate in metals?

46 / 50

46. Which factor reduces elasticity in metals at high stress values?

47 / 50

47. Which property ensures that metallic wires can be drawn into fine wires during wire-drawing?

48 / 50

48. Which of the following statements is correct regarding stress?

49 / 50

49. A steel rod of cross-sectional area is subjected to tensile stress of . If Young’s modulus of steel is , find elongation of the rod of length .

50 / 50

50. Which point on the stress–strain curve marks the end of elastic behaviour?

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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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