Mechanical Properties Of Solids Online Test | Exam Style

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. Which formula is used to calculate strain energy per unit volume at yield point?

2 / 30

2. Two wires of same length and same load but radii in ratio 1:2 are stretched. Find the ratio of energy stored per unit volume.

3 / 30

3. Why are surface defects dangerous for fatigue life?

4 / 30

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

5 / 30

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

6 / 30

6. 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?

7 / 30

7. Why is cold rolling of steel sheets done in industries?

8 / 30

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

9 / 30

9. A beam of square cross-section side , length , is loaded centrally with . If , find central deflection.

10 / 30

10. 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:

11 / 30

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

12 / 30

12. A steel wire and a copper wire of same length and cross-sectional area are joined in series and loaded with 100 N. If elongation of steel = , what is elongation of copper if ?

13 / 30

13. The length of a steel wire increases by when a load of is applied. If the same load is applied to a copper wire of same dimensions, elongation is . What is the ratio of Young’s moduli of steel to copper?

14 / 30

14. What is one practical application of strain hardening?

15 / 30

15. Why does annealing reduce the elasticity of metals?

16 / 30

16. Why is elastic deformation preferable in construction materials?

17 / 30

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

18 / 30

18. Why is creep analysis critical in turbine blades?

19 / 30

19. Why are alloys like brass and bronze used in engineering instead of pure metals?

20 / 30

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

21 / 30

21. Elasticity of a material depends on:

22 / 30

22. What is the effect of tempering on quenched steel compared to strain hardening?

23 / 30

23. Which of the following properties increases after cold working?

24 / 30

24. A cube of side is acted upon by a tangential force of on one of its faces. If the face area is , what is the shear stress?

25 / 30

25. Which heat treatment method involves heating followed by slow cooling to soften metals?

26 / 30

26. Shear strain is observed in which of the following cases?

27 / 30

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

28 / 30

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

29 / 30

29. Which of the following is an exception where elasticity increases with temperature?

30 / 30

30. Why is it important to test materials under Hooke’s law conditions before use in construction?

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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. For a material, Young’s modulus and Poisson’s ratio . Find the bulk modulus.

2 / 50

2. Why is strain hardening used in the manufacturing of copper wires?

3 / 50

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

4 / 50

4. Which equation represents strain in plastic region?

5 / 50

5. What is meant by linear elastic deformation?

6 / 50

6. Which of the following has the highest ultimate tensile strength among the given materials?

7 / 50

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

8 / 50

8. A steel wire of radius , length , is twisted through angle . If torque required = , calculate shear modulus.

9 / 50

9. Why is ductile plastic deformation preferred in structural materials?

10 / 50

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

11 / 50

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

12 / 50

12. Which property makes copper suitable for making electrical wires?

13 / 50

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

14 / 50

14. A beam of square cross-section side is subjected to load at mid-span. Length of beam = . Find central deflection ().

15 / 50

15. Why is plastic deformation important in the process of metal forming?

16 / 50

16. A cube of side is subjected to a tangential force of on one face. If the shear modulus , find the shear strain.

17 / 50

17. Why is steel preferred over iron in building bridges?

18 / 50

18. Which graph correctly represents linear elastic deformation?

19 / 50

19. In the creep curve, which stage shows nearly constant strain rate?

20 / 50

20. A wire of length is stretched by . What is the longitudinal strain?

21 / 50

21. If two wires of same material, same length, but different cross-sectional areas are subjected to same force, then:

22 / 50

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

23 / 50

23. What does Young’s modulus measure?

24 / 50

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

25 / 50

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

26 / 50

26. A stress–strain curve with a nearly straight line up to breaking point is typical of:

27 / 50

27. For the above material (Q542), calculate bulk modulus .

28 / 50

28. What is the drawback of strain-hardened materials in engineering applications?

29 / 50

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

30 / 50

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

31 / 50

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

32 / 50

32. In Searle’s experiment, why are two wires used (test wire and reference wire)?

33 / 50

33. 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 .

34 / 50

34. Which statement is true about strain?

35 / 50

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

36 / 50

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

37 / 50

37. Why are composites like carbon-fiber reinforced polymers used in aerospace structures?

38 / 50

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

39 / 50

39. What is the mathematical expression of Hooke’s law in terms of stress and strain?

40 / 50

40. Which physical property of solids is determined directly from Hooke’s law equation ?

41 / 50

41. Which formula defines shear stress?

42 / 50

42. In tall buildings, why is elasticity of materials carefully considered?

43 / 50

43. If a wire of length elongates by , the strain energy stored per unit volume is given by:

44 / 50

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

45 / 50

45. Which relation connects Young’s modulus , shear modulus , and Poisson’s ratio ?

46 / 50

46. Elasticity of a material depends on:

47 / 50

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

48 / 50

48. Which property of materials is utilized in the design of trampolines?

49 / 50

49. A steel rod elongates by under a stress of . If , what is its length?

50 / 50

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

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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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