Agricultural Engineering MCQ Questions Answers

1. Agricultural lands frequently require nutrient augmentation because _____.

2. The high productivity of american agriculture is exemplified by _______.

3. The high productivity of american agriculture is exemplified by _______.

4. The force acting along the circumference will cause stress in the walls in a direction normal to the longitudinal axis of cylinder; this stress is called

5. The deformation of a bar under its own weight compared to the deformation of same body subjected to a direct load equal to weight of the body is

6. The weakest section of a diamond riveting is the section which passes through

7. Rivets are made of following type of material

8. Diamond riveted joint can be adopted in the case of following type of joint

9. If the rivets in adjacent rows are staggered and the outermost row has only one rivet, the arrangement of the rivets is called

10. A riveted joint in which the number otrivets decrease from innermost to outer most row is called

11. A riveted joint in which every rivet of a row is opposite to other rivet of the outer row, is known as

12. When two plates are butt together and riveted with cover plates with two rows of rivets, the joi;it is known as

13. Efficiency of a riveted joint is the ratio of its strength (max. load it can resist without failure) to the strength of the unpunched plate in

14. The distance between the centres of the rivets in adjacent rows of zig-zag riveted joint is known as

15. In riveted boiler joints, all stresses, shearing, bearing and tensile are based on the

16. In a prismatic member made of two materials so joined that they deform equally under axial stress, the unit stresses in two materials are

17. The ratio of elongation in a prismatic bar due to its own weight (W) as compared to another similar bar carrying an additional weight (W) will be

18. A non-yielding support implies that the

19. A beam is loaded as cantilever. If the load at the end is increased, the failure will occur

20. A material capable of absorbing large amount of energy before fracture is known as

21. The strain energy stored in a body due to suddenly applied load compared to when it is applied gradually is

22. The stress induced in a body due to suddenly applied load compared to when it is applied gradually is

23. Proof resilience per material is known as

24. The total strain energy stored in a body is termed as

25. The maximum strain energy that can be stored in a body is known as

26. The energy absorbed in a body, when it is strained within the elastic limits, is known as

27. When it is indicated that a member is elastic, it means that when force is applied, it will

28. Flow stress corresponds to

29. In question 56, the internal reaction in bottom 80 cm length will be

30. The ratio of direct stress to volumetric strain in case of a body subjected to three mutually perpendicular stresses of equal intensity, is equal to

31. The ratio of lateral strain to the linear strain within elastic limit is known as

32. The elasticity of various materials is controlled by its

33. Rupture stress is

34. The stress developed in a material at breaking point in extension is called

35. In the tensile test, the phenomenon of slow extension of the material, i. stress increasing with the time at a constant load is called

36. The stress necessary to initiate yielding is

37. In a tensile test, near the elastic limit zone, the

38. If a material expands freely due to heating it will develop

39. The percentage reduction in area of a cast iron specimen during tensile test would be of the order of

40. The change in the unit volume of a material under tension with increase in its Poisson’s ratio will ,

41. The property of a material by virtue of which it can be beaten or rolled into plates is called

42. For which material the Poisson’s ratio is more than unity

43. Poisson’s ratio is defined as the ratio of

44. The property of a material which allows it to be drawn into a smaller section is called

45. The value of Poisson’s ratio for cast iron is

46. The materials which exhibit the same elastic properties in all directions are called

47. The property of a material by virtue of which a body returns to its original, shape after removal of the load is called

48. The total elongation produced in a bar of uniform section hanging vertically downwards due to its own weight is equal to that produced by a weight

49. The buckling load for a given material depends on

50. The value of Poisson’s ratio for steel is between

51. The value of modulus of elasticity for mild steel is of the order of

52. Which of the following materials is most elastic

53. If a part is constrained to move and heated, it will develop

54. In a tensile test on mild steel specimen, the breaking stress as compared to ultimate tensile stress is

55. Which is the false statement about true stress-strain method

56. Which of the following has no unit

57. For steel, the ultimate strength in shear as compared to in tension is nearly

58. During a tensile test on a specimen of 1 cm cross-section, maximum load observed was 8 tonnes and area of cross-section at neck was 0.5 cm2. Ultimate tensile strength of specimen is

59. True stress-strain curve for materials is plotted between

60. The intensity of stress which causes unit strain is called

61. Percentage reduction of area in performing tensile test on cast iron may be of the order of

62. The Young’s modulus of a wire is defined as the stress which will increase the length of wire compared to its original length

63. The impact strength of a material is an index of its

64. Tensile strength of a material is obtained by dividing the maximum load during the test by the

65. The ultimate tensile stress of mild steel compared to ultimate compressive stress is

66. If the radius of wire stretched by a load is doubled, then its Young’s modulus will be

67. Modulus of rigidity is defined as the ratio of

68. A thin mild steel wire is loaded by adding loads in equal increments till it breaks. The extensions noted with increasing loads will behave as under

69. The materials having same elastic properties in all directions are called

70. It equal and opposite forces applied to a body tend to elongate it, the stress so produced is called

71. Deformation per unit length in the direction of force is known as

72. The unit of Young’s modulus is

73. Young’s modulus is defined as the ratio of

74. Hooke’s law holds good up to

75. Strain is defined as the ratio of

76. What is typically maximum surface stress?

77. What occurs when the design stress exceeds the material yield strength?

78. What does the term "neutral axis" mean?

79. What is the term for the line or region of zero stress between the two surfaces?

80. What element in a piece of metal stretches in tension when it is bent?

81. Poisson's ratio is used to measure what?

82. What does the term yield strength refer to?

83. What kind of test determines yield strength?

84. What does yield strength indicate that a material will not return to?

85. What type of force is needed to permanently deform the material after removing the load?

86. What does the ELC describe as the point on the stress-strain curve beyond which the material permanently deforms after removing the load?

87. What does "the maximum stress" mean?

88. What does dividing the load at failure by the original cross sectional area determine?

89. What term is used to describe the greatest stress a material can withstand without deforming?

90. What is the name of the statement that stress is proportional to strain?

91. What is the maximum stress that can be applied without permanent deformation of the test specimen?

92. What kind of point is yield point?

93. What is a point on a stress-strain curve at which there is a sudden increase in strain?

94. What does it mean for a material to be stressed within the elastic region?

95. What is the maximum stress to which a specimen may be subjected and still return to its original length upon release of the load?

96. What term is used to describe the point on a stress-strain curve at which it begins to deviate from the straight-line relationship between stress and strain?

97. A measure of the deformation of the material that is what is it?

98. What is the cross-sectional area of an element in tension?

99. What is the unit used to measure stress?

100. What is the ability of a material to withstand an applied load?