{"id":17619,"date":"2025-11-08T08:42:29","date_gmt":"2025-11-08T08:42:29","guid":{"rendered":"https:\/\/mcqsadda.com\/?p=17619"},"modified":"2025-11-08T10:01:59","modified_gmt":"2025-11-08T10:01:59","slug":"elasticity-top-100-mcqs-with-answer-and-explanation-2","status":"publish","type":"post","link":"https:\/\/mcqsadda.com\/index.php\/2025\/11\/08\/elasticity-top-100-mcqs-with-answer-and-explanation-2\/","title":{"rendered":"Elasticity Top 100 MCQs With Answer and Explanation"},"content":{"rendered":"\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">1. The property of a body by virtue of which it regains its original shape after removing deforming force is called<\/mark><\/strong><br>A) Plasticity<br>B) Elasticity<br>C) Rigidity<br>D) Hardness<br><strong>Answer:<\/strong> B) Elasticity<br><strong>Explanation:<\/strong> Elasticity is the ability to return to the original shape once the external force is removed.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">2. The inability of a body to regain its original shape after deformation is called<\/mark><\/strong><br>A) Plasticity<br>B) Elasticity<br>C) Brittleness<br>D) Ductility<br><strong>Answer:<\/strong> A) Plasticity<br><strong>Explanation:<\/strong> Plastic materials do not return to their original form after deformation.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">3. The measure of elasticity of a material is known as<\/mark><\/strong><br>A) Modulus of elasticity<br>B) Elastic limit<br>C) Rigidity factor<br>D) Strength factor<br><strong>Answer:<\/strong> A) Modulus of elasticity<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">4. The property of a material to resist a deforming force is<\/mark><\/strong><br>A) Stress<br>B) Strain<br>C) Elasticity<br>D) Rigidity<br><strong>Answer:<\/strong> D) Rigidity<br><strong>Explanation:<\/strong> Rigidity indicates resistance to deformation.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">5. The point up to which a material returns to its original shape after removing force is called<\/mark><\/strong><br>A) Elastic limit<br>B) Breaking point<br>C) Yield point<br>D) Proportional limit<br><strong>Answer:<\/strong> A) Elastic limit<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">6. Beyond the elastic limit, a material becomes<\/mark><\/strong><br>A) Plastic<br>B) Brittle<br>C) Elastic<br>D) Stronger<br><strong>Answer:<\/strong> A) Plastic<br><strong>Explanation:<\/strong> After the elastic limit, deformation becomes permanent.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">7. The ratio of stress to strain within elastic limit is constant. This statement is known as<\/mark><\/strong><br>A) Hooke\u2019s law<br>B) Pascal\u2019s law<br>C) Archimedes\u2019 principle<br>D) Bernoulli\u2019s principle<br><strong>Answer:<\/strong> A) Hooke\u2019s law<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">8. The SI unit of modulus of elasticity is the same as that of<\/mark><\/strong><br>A) Pressure<br>B) Force<br>C) Energy<br>D) Power<br><strong>Answer:<\/strong> A) Pressure<br><strong>Explanation:<\/strong> Modulus of elasticity and pressure both have the same unit (force per unit area).<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">9. A material which can be stretched into a wire is said to be<\/mark><\/strong><br>A) Ductile<br>B) Malleable<br>C) Brittle<br>D) Elastic<br><strong>Answer:<\/strong> A) Ductile<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>10. The property of being hammered into thin sheets is called<\/strong><br><\/mark>A) Malleability<br>B) Ductility<br>C) Brittleness<br>D) Elasticity<br><strong>Answer:<\/strong> A) Malleability<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">11. The property of a material to resist breaking under tension is<\/mark><\/strong><br>A) Tensile strength<br>B) Elastic limit<br>C) Yield strength<br>D) Flexibility<br><strong>Answer:<\/strong> A) Tensile strength<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">12. The breaking of a wire under tension depends on<\/mark><\/strong><br>A) Its material and diameter<br>B) Its length only<br>C) Its color<br>D) None of these<br><strong>Answer:<\/strong> A) Its material and diameter<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>13. The materials that break suddenly without deformation are called<\/strong><br><\/mark>A) Brittle<br>B) Elastic<br>C) Ductile<br>D) Tough<br><strong>Answer:<\/strong> A) Brittle<br><strong>Explanation:<\/strong> Brittle materials fracture easily without much strain.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">14. The materials which can be drawn into thin wires are called<\/mark><\/strong><br>A) Ductile<br>B) Malleable<br>C) Brittle<br>D) Elastic<br><strong>Answer:<\/strong> A) Ductile<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">15. Which of the following is a ductile material?<\/mark><\/strong><br>A) Copper<br>B) Glass<br>C) Chalk<br>D) Coal<br><strong>Answer:<\/strong> A) Copper<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">16. Which of the following is a brittle material?<\/mark><\/strong><br>A) Glass<br>B) Copper<br>C) Iron<br>D) Aluminium<br><strong>Answer:<\/strong> A) Glass<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">17. The property of a material by which it can absorb energy and resist fracture is<\/mark><\/strong><br>A) Toughness<br>B) Hardness<br>C) Elasticity<br>D) Rigidity<br><strong>Answer:<\/strong> A) Toughness<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">18. The ability of a body to resist permanent deformation is<\/mark><\/strong><br>A) Elasticity<br>B) Plasticity<br>C) Hardness<br>D) Creep<br><strong>Answer:<\/strong> A) Elasticity<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">19. A steel spring returns to its original shape because of<\/mark><\/strong><br>A) Elasticity<br>B) Plasticity<br>C) Friction<br>D) Inertia<br><strong>Answer:<\/strong> A) Elasticity<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">20. Rubber is less elastic than steel because<\/mark><\/strong><br>A) It does not regain shape fully<br>B) It deforms easily<br>C) It has weak intermolecular forces<br>D) All of these<br><strong>Answer:<\/strong> D) All of these<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>21. A material that recovers its original dimensions quickly is said to have<\/strong><br><\/mark>A) High elasticity<br>B) Low elasticity<br>C) High viscosity<br>D) High density<br><strong>Answer:<\/strong> A) High elasticity<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>22. The internal restoring force developed in a body under deformation is called<\/strong><br><\/mark>A) Stress<br>B) Strain<br>C) Force of friction<br>D) Rigidity<br><strong>Answer:<\/strong> A) Stress<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>23. The change in dimension per original dimension under stress is called<\/strong><br><\/mark>A) Strain<br>B) Stress<br>C) Toughness<br>D) Elasticity<br><strong>Answer:<\/strong> A) Strain<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>24. The stress at which a material just begins to flow is called<\/strong><br><\/mark>A) Yield stress<br>B) Elastic limit<br>C) Breaking stress<br>D) Shear stress<br><strong>Answer:<\/strong> A) Yield stress<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>25. Beyond yield point, a material<\/strong><br><\/mark>A) Undergoes plastic deformation<br>B) Breaks immediately<br>C) Becomes perfectly elastic<br>D) Returns to original state<br><strong>Answer:<\/strong> A) Undergoes plastic deformation<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>26. The maximum stress that a material can withstand is called<\/strong><br><\/mark>A) Breaking stress<br>B) Elastic stress<br>C) Yield stress<br>D) Normal stress<br><strong>Answer:<\/strong> A) Breaking stress<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>27. The ratio of lateral strain to longitudinal strain is called<\/strong><br><\/mark>A) Poisson\u2019s ratio<br>B) Elastic constant<br>C) Rigidity factor<br>D) Strain ratio<br><strong>Answer:<\/strong> A) Poisson\u2019s ratio<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>28. Poisson\u2019s ratio is<\/strong><br><\/mark>A) Dimensionless<br>B) Has units of stress<br>C) Has units of strain<br>D) Has units of length<br><strong>Answer:<\/strong> A) Dimensionless<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>29. When a wire is stretched, it becomes<\/strong><br><\/mark>A) Longer and thinner<br>B) Shorter and thicker<br>C) Longer and thicker<br>D) Shorter and thinner<br><strong>Answer:<\/strong> A) Longer and thinner<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>30. In elastic materials, stress is directly proportional to<\/strong><br><\/mark>A) Strain<br>B) Density<br>C) Temperature<br>D) Pressure<br><strong>Answer:<\/strong> A) Strain<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>31. The property by which an object resists twisting is<\/strong><br><\/mark>A) Rigidity<br>B) Elasticity<br>C) Flexibility<br>D) Ductility<br><strong>Answer:<\/strong> A) Rigidity<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>32. Temporary deformation is known as<\/strong><br><\/mark>A) Elastic deformation<br>B) Plastic deformation<br>C) Permanent deformation<br>D) Creep<br><strong>Answer:<\/strong> A) Elastic deformation<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>33. Permanent deformation is known as<\/strong><br><\/mark>A) Plastic deformation<br>B) Elastic deformation<br>C) Temporary strain<br>D) Reversible strain<br><strong>Answer:<\/strong> A) Plastic deformation<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>34. The ability of a material to regain its shape after deformation is due to<\/strong><br><\/mark>A) Intermolecular forces<br>B) Inertia<br>C) Density<br>D) Temperature<br><strong>Answer:<\/strong> A) Intermolecular forces<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>35. The stronger the intermolecular forces, the<\/strong><br><\/mark>A) Greater the elasticity<br>B) Lesser the elasticity<br>C) Greater the plasticity<br>D) Lower the rigidity<br><strong>Answer:<\/strong> A) Greater the elasticity<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>36. The unit of stress and modulus of elasticity is the same because<\/strong><br><\/mark>A) Both involve force per area<br>B) Both involve volume<br>C) Both involve velocity<br>D) Both involve temperature<br><strong>Answer:<\/strong> A) Both involve force per area<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>37. The elastic behavior of a solid is due to<\/strong><br><\/mark>A) Stretching of molecular bonds<br>B) Sliding of molecules<br>C) Breaking of bonds<br>D) Random motion of atoms<br><strong>Answer:<\/strong> A) Stretching of molecular bonds<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">38. A rubber band shows<\/mark><\/strong><br>A) Elasticity<br>B) Plasticity<br>C) Rigidity<br>D) None<br><strong>Answer:<\/strong> A) Elasticity<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">39. The best elastic material is<\/mark><\/strong><br>A) Steel<br>B) Copper<br>C) Aluminium<br>D) Rubber<br><strong>Answer:<\/strong> A) Steel<br><strong>Explanation:<\/strong> Steel regains its shape quickly and follows Hooke\u2019s law accurately.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">40. Rubber is elastic but not perfectly elastic because<\/mark><\/strong><br>A) It loses energy as heat<br>B) It is light<br>C) It is non-metallic<br>D) It is soft<br><strong>Answer:<\/strong> A) It loses energy as heat<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">41. The elasticity of a wire depends on<\/mark><\/strong><br>A) Material of wire<br>B) Temperature<br>C) Length and thickness<br>D) All of these<br><strong>Answer:<\/strong> D) All of these<br><strong>Explanation:<\/strong> Elastic behavior varies with material type, dimensions, and temperature.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">42. Elastic materials store energy when<\/mark><\/strong><br>A) Deformed<br>B) At rest<br>C) Heated<br>D) Rotated<br><strong>Answer:<\/strong> A) Deformed<br><strong>Explanation:<\/strong> Work done in deforming is stored as potential energy in the material.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">43. Energy stored in an elastic body is called<\/mark><\/strong><br>A) Elastic potential energy<br>B) Mechanical energy<br>C) Strain energy<br>D) Work energy<br><strong>Answer:<\/strong> A) Elastic potential energy<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">44. In which state of matter is elasticity most prominent?<\/mark><\/strong><br>A) Solids<br>B) Liquids<br>C) Gases<br>D) Plasma<br><strong>Answer:<\/strong> A) Solids<br><strong>Explanation:<\/strong> Solids strongly resist deformation due to strong molecular forces.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">45. Liquids exhibit elasticity in<\/mark><\/strong><br>A) Volume<br>B) Shape<br>C) Length<br>D) None<br><strong>Answer:<\/strong> A) Volume<br><strong>Explanation:<\/strong> Liquids resist compression but easily change shape.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">46. A perfectly elastic body<\/mark><\/strong><br>A) Regains its original shape completely<br>B) Regains partially<br>C) Never regains<br>D) Breaks after deformation<br><strong>Answer:<\/strong> A) Regains its original shape completely<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">47. A perfectly plastic body<\/mark><\/strong><br>A) Never regains original shape<br>B) Regains partially<br>C) Behaves elastically<br>D) Expands permanently<br><strong>Answer:<\/strong> A) Never regains original shape<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">48. Glass is an example of<\/mark><\/strong><br>A) Brittle substance<br>B) Elastic substance<br>C) Plastic substance<br>D) Ductile substance<br><strong>Answer:<\/strong> A) Brittle substance<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">49. Steel wire is preferred for making springs because<\/mark><\/strong><br>A) It has high elasticity<br>B) It is light<br>C) It is cheap<br>D) It has low density<br><strong>Answer:<\/strong> A) It has high elasticity<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">50. When a spring is stretched, the restoring force acts<\/mark><\/strong><br>A) Opposite to the deformation<br>B) Along deformation<br>C) Perpendicular to spring<br>D) Randomly<br><strong>Answer:<\/strong> A) Opposite to the deformation<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">51. The elasticity of a material decreases when<\/mark><\/strong><br>A) Temperature increases<br>B) Temperature decreases<br>C) Pressure increases<br>D) Volume decreases<br><strong>Answer:<\/strong> A) Temperature increases<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">52. A wire gets longer when stretched due to<\/mark><\/strong><br>A) Tensile stress<br>B) Compressive stress<br>C) Shear stress<br>D) Thermal stress<br><strong>Answer:<\/strong> A) Tensile stress<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">53. A rod shortens when compressed due to<\/mark><\/strong><br>A) Compressive stress<br>B) Shear stress<br>C) Tensile stress<br>D) None<br><strong>Answer:<\/strong> A) Compressive stress<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>54. When equal and opposite tangential forces act on a body, it produces<\/strong><br><\/mark>A) Shear stress<br>B) Longitudinal stress<br>C) Compressive stress<br>D) Normal stress<br><strong>Answer:<\/strong> A) Shear stress<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>55. The temporary shape change that disappears after removing force is<\/strong><br><\/mark>A) Elastic deformation<br>B) Plastic deformation<br>C) Permanent deformation<br>D) None<br><strong>Answer:<\/strong> A) Elastic deformation<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>56. A body that regains only part of its shape after deformation is called<\/strong><br><\/mark>A) Imperfectly elastic<br>B) Perfectly elastic<br>C) Plastic<br>D) Rigid<br><strong>Answer:<\/strong> A) Imperfectly elastic<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>57. The ability of a metal to return to its original form is due to<\/strong><br><\/mark>A) Molecular forces<br>B) Gravitational forces<br>C) Magnetic forces<br>D) Electrical forces<br><strong>Answer:<\/strong> A) Molecular forces<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">58. The elastic limit of steel is<\/mark><\/strong><br>A) Higher than that of rubber<br>B) Lower than that of rubber<br>C) Equal to that of rubber<br>D) Negligible<br><strong>Answer:<\/strong> A) Higher than that of rubber<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">59. A wire remains elastic as long as<\/mark><\/strong><br>A) Stress does not exceed elastic limit<br>B) Stress is very large<br>C) It is thick<br>D) It is short<br><strong>Answer:<\/strong> A) Stress does not exceed elastic limit<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">60. Elastic behavior of solids can be represented by<\/mark><\/strong><br>A) Stress-strain curve<br>B) Pressure-temperature graph<br>C) Volume-time graph<br>D) Force-distance graph<br><strong>Answer:<\/strong> A) Stress-strain curve<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">61. In the initial part of stress-strain curve, stress is<\/mark><\/strong><br>A) Directly proportional to strain<br>B) Inversely proportional<br>C) Constant<br>D) Zero<br><strong>Answer:<\/strong> A) Directly proportional to strain<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>62. The point beyond which strain increases without increase in stress is<\/strong><br><\/mark>A) Yield point<br>B) Elastic limit<br>C) Breaking point<br>D) Proportional limit<br><strong>Answer:<\/strong> A) Yield point<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">63. The stress at which a wire breaks is<\/mark><\/strong><br>A) Breaking stress<br>B) Yield stress<br>C) Elastic stress<br>D) Shear stress<br><strong>Answer:<\/strong> A) Breaking stress<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">64. The property of a body to resist volume change is measured by<\/mark><\/strong><br>A) Bulk modulus<br>B) Young\u2019s modulus<br>C) Rigidity modulus<br>D) Poisson\u2019s ratio<br><strong>Answer:<\/strong> A) Bulk modulus<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>65. The property of a body to resist change in shape is measured by<\/strong><br><\/mark>A) Rigidity modulus<br>B) Young\u2019s modulus<br>C) Bulk modulus<br>D) Plastic modulus<br><strong>Answer:<\/strong> A) Rigidity modulus<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>66. The property of a body to resist change in length is measured by<\/strong><br><\/mark>A) Young\u2019s modulus<br>B) Bulk modulus<br>C) Rigidity modulus<br>D) Plastic modulus<br><strong>Answer:<\/strong> A) Young\u2019s modulus<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>67. In liquids, only one modulus of elasticity is defined because<\/strong><br><\/mark>A) Liquids have no definite shape<br>B) Liquids cannot resist shear<br>C) Liquids flow under stress<br>D) All of these<br><strong>Answer:<\/strong> D) All of these<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>68. For perfectly rigid bodies, elasticity is<\/strong><br><\/mark>A) Infinite<br>B) Zero<br>C) Maximum<br>D) Constant<br><strong>Answer:<\/strong> A) Infinite<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>69. For perfectly plastic bodies, elasticity is<\/strong><br><\/mark>A) Zero<br>B) Infinite<br>C) Constant<br>D) Variable<br><strong>Answer:<\/strong> A) Zero<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">70. The proportional limit is<\/mark><\/strong><br>A) The limit up to which stress and strain are proportional<br>B) The breaking point<br>C) The yield point<br>D) The elastic limit<br><strong>Answer:<\/strong> A) The limit up to which stress and strain are proportional<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>71. The ability of a body to resist permanent deformation under stress is<\/strong><br><\/mark>A) Elasticity<br>B) Plasticity<br>C) Ductility<br>D) Toughness<br><strong>Answer:<\/strong> A) Elasticity<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">72. The elasticity of rubber is due to<\/mark><\/strong><br>A) Stretching of long chain molecules<br>B) Density<br>C) Surface tension<br>D) Gravity<br><strong>Answer:<\/strong> A) Stretching of long chain molecules<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">73. Elasticity depends upon<\/mark><\/strong><br>A) Nature of material<br>B) Temperature<br>C) Impurities<br>D) All of these<br><strong>Answer:<\/strong> D) All of these<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">74. The spring balance works on the principle of<\/mark><\/strong><br>A) Elasticity<br>B) Pressure<br>C) Density<br>D) Magnetism<br><strong>Answer:<\/strong> A) Elasticity<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">75. The greater the modulus of elasticity, the<\/mark><\/strong><br>A) Greater the stress required for same strain<br>B) Smaller the stress<br>C) Lower the elasticity<br>D) Easier deformation<br><strong>Answer:<\/strong> A) Greater the stress required for same strain<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">76. Elastic fatigue means<\/mark><\/strong><br>A) Loss of elasticity due to repeated stress<br>B) Complete loss of elasticity<br>C) Permanent expansion<br>D) Sudden breakage<br><strong>Answer:<\/strong> A) Loss of elasticity due to repeated stress<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">77. The materials used in bridges must have<\/mark><\/strong><br>A) High elasticity and high strength<br>B) Low elasticity and high weight<br>C) High density<br>D) Low rigidity<br><strong>Answer:<\/strong> A) High elasticity and high strength<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">78. The ability to regain shape quickly after deformation is known as<\/mark><\/strong><br>A) Resilience<br>B) Plasticity<br>C) Rigidity<br>D) Brittleness<br><strong>Answer:<\/strong> A) Resilience<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">79. The area under stress-strain curve represents<\/mark><\/strong><br>A) Work done per unit volume<br>B) Elastic limit<br>C) Strength<br>D) Density<br><strong>Answer:<\/strong> A) Work done per unit volume<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">80. Elastic limit increases with<\/mark><\/strong><br>A) Decrease in temperature<br>B) Increase in temperature<br>C) Increase in volume<br>D) Increase in area<br><strong>Answer:<\/strong> A) Decrease in temperature<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">81. A soft iron has<\/mark><\/strong><br>A) Low elasticity<br>B) High elasticity<br>C) Perfect elasticity<br>D) No elasticity<br><strong>Answer:<\/strong> B) High elasticity<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">82. Elastic materials are used in<\/mark><\/strong><br>A) Springs<br>B) Balance instruments<br>C) Bridges<br>D) All of these<br><strong>Answer:<\/strong> D) All of these<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">83. Perfectly elastic collision is one in which<\/mark><\/strong><br>A) No energy is lost<br>B) Energy is lost<br>C) Momentum is lost<br>D) Both are lost<br><strong>Answer:<\/strong> A) No energy is lost<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">84. The property of glass fiber that makes it strong is<\/mark><\/strong><br>A) Elasticity<br>B) Plasticity<br>C) Density<br>D) Conductivity<br><strong>Answer:<\/strong> A) Elasticity<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">85. The elastic behavior of solids is used in<\/mark><\/strong><br>A) Design of machines<br>B) Building construction<br>C) Measurement of force<br>D) All of these<br><strong>Answer:<\/strong> D) All of these<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">86. Elastic limit decreases with<\/mark><\/strong><br>A) Increase in temperature<br>B) Decrease in temperature<br>C) Decrease in pressure<br>D) Increase in thickness<br><strong>Answer:<\/strong> A) Increase in temperature<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">87. The unit of strain is<\/mark><\/strong><br>A) No unit<br>B) Same as stress<br>C) Same as force<br>D) Same as pressure<br><strong>Answer:<\/strong> A) No unit<br><strong>Explanation:<\/strong> Strain is a ratio; hence dimensionless.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">88. The slope of stress-strain curve in elastic region gives<\/mark><\/strong><br>A) Modulus of elasticity<br>B) Density<br>C) Hardness<br>D) Weight<br><strong>Answer:<\/strong> A) Modulus of elasticity<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">89. The deformation per unit length is called<\/mark><\/strong><br>A) Strain<br>B) Stress<br>C) Elastic limit<br>D) Tension<br><strong>Answer:<\/strong> A) Strain<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">90. Steel is more elastic than rubber because<\/mark><\/strong><br>A) It recovers faster and completely<br>B) It is harder<br>C) It is denser<br>D) It is metallic<br><strong>Answer:<\/strong> A) It recovers faster and completely<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">91. The elasticity of materials can be compared using<\/mark><\/strong><br>A) Modulus of elasticity<br>B) Density<br>C) Weight<br>D) Hardness<br><strong>Answer:<\/strong> A) Modulus of elasticity<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">92. Modulus of elasticity is higher for<\/mark><\/strong><br>A) Metals<br>B) Rubber<br>C) Plastic<br>D) Wood<br><strong>Answer:<\/strong> A) Metals<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">93. The stress beyond which a material breaks is known as<\/mark><\/strong><br>A) Breaking stress<br>B) Yield stress<br>C) Elastic stress<br>D) Shear stress<br><strong>Answer:<\/strong> A) Breaking stress<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">94. A perfectly elastic body<\/mark><\/strong><br>A) Recovers total energy<br>B) Loses some energy<br>C) Stores heat<br>D) Gets permanently deformed<br><strong>Answer:<\/strong> A) Recovers total energy<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>95. The property of a material which enables it to be rolled into sheets is<\/strong><br><\/mark>A) Malleability<br>B) Ductility<br>C) Elasticity<br>D) Rigidity<br><strong>Answer:<\/strong> A) Malleability<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>96. In elasticity experiments, extension is directly proportional to<\/strong><br><\/mark>A) Load<br>B) Length<br>C) Temperature<br>D) Area<br><strong>Answer:<\/strong> A) Load<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">97. When stress exceeds elastic limit, Hooke\u2019s law<\/mark><\/strong><br>A) Fails<br>B) Holds good<br>C) Becomes stronger<br>D) Becomes linear<br><strong>Answer:<\/strong> A) Fails<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>98. A perfect spring regains its shape completely after<\/strong><br><\/mark>A) Removal of load<br>B) Application of load<br>C) Heating<br>D) Cooling<br><strong>Answer:<\/strong> A) Removal of load<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>99. Rubber has large elasticity because<\/strong><br><\/mark>A) Its molecules can stretch a lot<br>B) It is soft<br>C) It is light<br>D) It is dense<br><strong>Answer:<\/strong> A) Its molecules can stretch a lot<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>100. The study of elasticity is useful in<\/strong><br><\/mark>A) Designing safe structures and machines<br>B) Making colors<br>C) Producing sound<br>D) Measuring time<br><strong>Answer:<\/strong> A) Designing safe structures and machines<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. The property of a body by virtue of which it regains its original shape after removing deforming force is calledA) PlasticityB) ElasticityC) RigidityD) HardnessAnswer: B) ElasticityExplanation: Elasticity is the ability to return to the original shape once the external force is removed. 2. The inability of a body to regain its original shape after<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-17619","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-blog"},"_links":{"self":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/17619","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/comments?post=17619"}],"version-history":[{"count":3,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/17619\/revisions"}],"predecessor-version":[{"id":17653,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/17619\/revisions\/17653"}],"wp:attachment":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/media?parent=17619"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/categories?post=17619"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/tags?post=17619"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}