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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. Which property makes steel cables suitable for lifting heavy loads in cranes?

2 / 30

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

3 / 30

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

4 / 30

4. A metal rod has , . Find shear modulus .

5 / 30

5. Why does fatigue failure occur in metals?

6 / 30

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

7 / 30

7. A wire of length and area is subjected to a force of . If elongation is , calculate Young’s modulus.

8 / 30

8. Which formula correctly expresses shear modulus ?

9 / 30

9. Why are surface defects dangerous for fatigue life?

10 / 30

10. At the elastic limit, which of the following is true?

11 / 30

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

12 / 30

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

13 / 30

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

14 / 30

14. Which of the following materials is highly ductile?

15 / 30

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

16 / 30

16. What is Young’s modulus defined as?

17 / 30

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

18 / 30

18. If a material is stressed just beyond its elastic limit, what happens?

19 / 30

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

20 / 30

20. Why are strain-hardened aluminum sheets used in aircraft manufacturing?

21 / 30

21. Which of the following statements is correct about strain hardening?

22 / 30

22. What does the area under the stress–strain curve represent?

23 / 30

23. Why are alloys generally tougher than pure metals?

24 / 30

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

25 / 30

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

26 / 30

26. Why are metals heated before forging or rolling?

27 / 30

27. Which relation is true for Hooke’s law formulation?

28 / 30

28. Which of the following is a characteristic of plastic deformation?

29 / 30

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

30 / 30

30. A steel wire of radius is clamped at one end and twisted by torque of . If length = , calculate angle of twist. (Shear modulus )

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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. 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.

2 / 50

2. Why is elasticity important in manufacturing cutting tools?

3 / 50

3. Which region of the stress–strain curve corresponds to reversible deformation?

4 / 50

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

5 / 50

5. Which region of the stress–strain curve shows strain hardening?

6 / 50

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

7 / 50

7. Why is stress relaxation important in designing bolts and fasteners?

8 / 50

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

9 / 50

9. A rubber band stretched to constant length shows decreasing force with time. This is an example of:

10 / 50

10. In stress-strain behavior, where does plastic deformation start?

11 / 50

11. Which factor is most critical in determining whether a material exhibits ductile or brittle fracture?

12 / 50

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

13 / 50

13. Why is annealing important for materials after strain hardening in manufacturing?

14 / 50

14. Which region of the stress–strain curve obeys Hooke’s law?

15 / 50

15. Why are composite materials (like fiberglass) used in hockey sticks and skis?

16 / 50

16. Which of the following materials shows almost no plastic region in its stress–strain curve?

17 / 50

17. Which relation connects Young’s modulus , bulk modulus , and Poisson’s ratio ?

18 / 50

18. Which type of creep dominates at very high temperatures near melting point?

19 / 50

19. Which of the following is the primary cause of brittle fracture in materials?

20 / 50

20. Which type of materials generally exhibit significant plastic deformation before fracture?

21 / 50

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

22 / 50

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

23 / 50

23. Why are strain-hardened stainless steels used in making surgical instruments?

24 / 50

24. If stress is below proportionality limit, then:

25 / 50

25. Why is glass not preferred in structural engineering for load-bearing purposes?

26 / 50

26. A metal sample experiences a steady-state creep strain rate of at . If stress is increased to with stress exponent , what will be the new creep rate?

27 / 50

27. Which environmental factor commonly contributes to fracture in metals?

28 / 50

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

29 / 50

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

30 / 50

30. Why is elasticity important in stents used to open blocked arteries?

31 / 50

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

32 / 50

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

33 / 50

33. What does toughness of a material represent?

34 / 50

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

35 / 50

35. What is bulk modulus of a material?

36 / 50

36. Which of the following examples follows Hooke’s law most closely?

37 / 50

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

38 / 50

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

39 / 50

39. Which elastic modulus relates pressure and change in volume?

40 / 50

40. Why are alloys generally tougher than pure metals?

41 / 50

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

42 / 50

42. Which point on the stress–strain curve marks the beginning of plastic deformation?

43 / 50

43. Which of the following fields most directly benefits from knowledge of mechanical properties of solids?

44 / 50

44. Which property makes steel cables suitable for lifting heavy loads in cranes?

45 / 50

45. Which statement is true about yield point?

46 / 50

46. Which structural component primarily depends on shear modulus for safety design?

47 / 50

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

48 / 50

48. Which equation represents strain in plastic region?

49 / 50

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

50 / 50

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

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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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