Agricultural Engineering MCQ Quiz Hub

Agricultural Engineering MCQs

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1. The property by which a body returns to its original shape after removal of the force is called __________




2. The property of a material by which it can be beaten or rolled into thin plates is called __________




3. Which law is also called as the elasticity law?




4. The materials which have the same elastic properties in all directions are called __________




5. A member which does not regain its original shape after removal of the load producing deformation is said __________




6. The body will regain it is previous shape and size only when the deformation caused by the external forces, is within a certain limit. What is that limit?




7. As the elastic limit reaches, tensile strain __________




8. What kind of elastic materials are derived from a strain energy density function?




9. What the number that measures an object’s resistance to being deformed elastically when stress is applied to it?




10. The ability of a material to absorb energy when elastically deformed and to return it when unloaded is called __________




11. The strain energy stored in a specimen when stained within the elastic limit is known as __________




12. The maximum strain energy stored at elastic limit is __________




13. What is the modulus of resilience?




14. The property by which an amount of energy is absorbed by material without plastic deformation is called __________




15. Resilience of a material plays important role in which of the following?




16. Which of the following parameters can be obtained by tension test of a standard specimen?




17. Proportional Limit is defined as the stress at which the stress strain curves begins to deviate from the straight line.




18. Which of the following is the definition of Compliance?




19. Yield strength is defined as the maximum stress at which a marked increase in elongation occurs without increase in________




20. For the materials which do not exhibit a well-defined yield points, the yield strength is defined as the stress corresponding to a permanent set of how much percentage of gauge length?




21. Proof strength is defined as the stress which will produce a permanent extension of how much percentage in the gauge length of the standard test specimen.




22. All engineering materials are plastic.




23. Which of the following are true about plasticity?




24. Which of the following is measure of stiffness?




25. Which of the following facts are true for resilience?




26. Modulus of resilience is defined as




27. Which of the following are true for toughness




28. Malleability increases with temperature while ductility decreases with temperature.




29. In which way, the notch decreases the tendency of brittle failure?




30. The fracture of material occurs when the flow curve _______________




31. Which of the following does not influence the ductile to the brittle transition of a material?




32. In the case of 3-dimension state of stress, if one of the stress values, say, principal stress direction becomes compressive, the fracture stress reduces significantly.




33. The hydrostatic compressive state of stress __________ the fracture strength of the material.




34. The hydrostatic component of stress exerts no __________




35. The Hydrostatic stress __________________ the dislocation pileup in the material.




36. The hydrostatic stress influence the crack propagation but not the crack initiation.




37. Which of the following is not among the basic condition responsible for causing the fracture of brittle?




38. In both the Charpy and Izod impact testing, the load is applied from the backside on notch for causing fracture.




39. The principle result in the impact test is the energy absorbed in the fracturing of the sample.




40. The nature of fracture in charpy test is not determine by __________




41. Which of the following material has highest tendency for ductile to brittle transition?




42. The fracture transition plastic (FTP) point is defined as __________




43. The fracture appearance transition temperature (FATT) point is defined as the _______




44. The nil ductility temperature (NDT) was used in world war-II for analysis of breaking ship. The NDT is defined as the ______




45. The necking begins when the ___________




46. The formation of necking produces the state of _________________




47. The crack growth in ductile material is by method of ______________




48. The main cause of presence of dimple in ductile fracture surface is ___________




49. The preferred sites for void formation are inclusions, second-phase particles, or the fine oxide particles, while in pure metals it is grain-boundary triple points.




50. The ductility of true strain values _____________ with increase in second phase particles.