02:23
AtoZ Material
1. Strain is defined as the ratio of ______.
2. Hooke's law holds good upto _______.
3. Young's modulus is defined as the ratio of
4. The unit of Young's modulus is _______.
5. Deformation per unit length in the direction of force is known as
6. It equal and opposite forces applied to a body tend to elongate it, the stress so produced is called
7. The materials having same elastic properties in all directions are called
8. 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
9. Modulus of rigidity is defined as the ratio of _______.
10. If the radius of wire stretched by a load is doubled, then its Young's modulus will be
11. The ultimate tensile stress of mild steel compared to ultimate compressive stress is
12. Tensile strength of a material is obtained by dividing the maximum load during the test by the
13. The impact strength of a material is an index of its
14. The Young's modulus of a wire is defined as the stress which will increase the length of wire compared to its original length
15. Percentage reduction of area in performing tensile test on cast iron may be of the order of
16. The intensity of stress which causes unit strain is called
17. True stress-strain curve for materials is plotted between
18. 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
19. For steel, the ultimate strength in shear as compared to in tension is nearly
20. Which of the following has no unit.
21. Which is the false statement about true stress-strain method
22. In a tensile test on mild steel specimen, the breaking stress as compared to ultimate tensile stress is
23. If a part is constrained to move and heated, it will develop
24. Which of the following materials is most elastic
25. The value of modulus of elasticity for mild steel is of the order of
26. The value of Poisson's ratio for steel is between
27. The buckling load for a given material depends on
28. 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
29. The property of a material by virtue of which a body returns to its original, shape after removal of the load is called
30. The materials which exhibit the same elastic properties in all directions are called
31. The value of Poisson's ratio for cast iron is
32. The property of a material which allows it to be drawn into a smaller section is called
33. Poisson's ratio is defined as the ratio of
34. For which material the Poisson's ratio is more than unity
35. The property of a material by virtue of which it can be beaten or rolled into plates is called
36. The change in the unit volume of a material under tension with increase in its Poisson's ratio will
37. The percentage reduction in area of a cast iron specimen during tensile test would be of the order of
38. If a material expands freely due to heating it will develop
39. In a tensile test, near the elastic limit zone, the
40. The stress necessary to initiate yielding is
41. In the tensile test, the phenomenon of slow extension of the material, i. e. stress increasing with the time at a constant load is called
42. The stress developed in a material at breaking point in extension is called
43. Rupture stress is ________.
44. The elasticity of various materials is controlled by its
45. The ratio of lateral strain to the linear strain within elastic limit is known as
46. 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
47. The stress at which extension of the material takes place more quickly as com¬pared to the increase in load is called
48. The internal reaction in bottom 80 cm length will be
49. Flow stress corresponds to _______ .
50. When it is indicated that a member is elastic, it means that when force is applied, it will
51. The energy absorbed in a body, when it is strained within the elastic limits, is known as
52. Resilience of a material is considered when it is subjected to
53. The maximum strain energy that can be stored in a body is known as
54. The total strain energy stored in a body is termed as
55. Proof resilience per material is known as _____.
56. The stress induced in a body due to suddenly applied load compared to when it is applied gradually is
57. The strain energy stored in a body due to suddenly applied load compared to when it is applied gradually is
58. A material capable of absorbing large amount of energy before fracture is known as
59. Coaxing is the method of increasing
60. A beam is loaded as cantilever. If the load at the end is increased, the failure will occur
61. A non-yielding support implies that the
62. 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
63. In a prismatic member made of two materials so joined that they deform equal¬ly under axial stress, the unit stresses in two materials are
64. In riveted boiler joints, all stresses, shearing, bearing and tensile are based on the
65. The distance between the centers of the rivets in adjacent rows of zig-zag riveted joint is known as
66. Efficiency of a riveted joint is the ratio of its strength (max. load it can resist without failure) to the strength of the unpunished plate in
67. When two plates are butt together and riveted with cover plates with two rows of rivets, the joi;it is known as
68. A riveted joint in which every rivet of a row is opposite to other rivet of the outer row, is known as
69. A riveted joint in which the number otrivets decrease from innermost to outer most row is called
70. If the rivets in adjacent rows are staggered and the outermost row has only one rivet, the arrangement of the rivets is called
71. Diamond riveted joint can be adopted in the case of following type of joint
72. Rivets are made of following type of material
73. The weakest section of a diamond riveting is the section which passes through
74. 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
75. 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
76. A boiler shell 200 cm diameter and plate thickness 1.5 cm is subjected to internal pressure of 1.5 MN/m , then the hoop stress will be
77. A cylindrical section having no joint is known as
78. Longitudinal stress in a thin cylinder is
79. The safe twisting moment for a compound shaft is equal to the
80. The torsional rigidity of a shaft is expressed by the
81. The value of shear stress which is induced in the shaft due to the applied couple varies
82. A key is subjected to side pressure as well at shearing forces. These pressures are called
83. In a belt drive, the pulley diameter is doubled, the belt tension and pulley width remaining same. The changes required in key will be
84. Shear stress induced in a shaft subjected to tension will be_____.
2. Hooke's law holds good upto _______.
3. Young's modulus is defined as the ratio of
4. The unit of Young's modulus is _______.
5. Deformation per unit length in the direction of force is known as
6. It equal and opposite forces applied to a body tend to elongate it, the stress so produced is called
7. The materials having same elastic properties in all directions are called
8. 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
9. Modulus of rigidity is defined as the ratio of _______.
10. If the radius of wire stretched by a load is doubled, then its Young's modulus will be
11. The ultimate tensile stress of mild steel compared to ultimate compressive stress is
12. Tensile strength of a material is obtained by dividing the maximum load during the test by the
13. The impact strength of a material is an index of its
14. The Young's modulus of a wire is defined as the stress which will increase the length of wire compared to its original length
15. Percentage reduction of area in performing tensile test on cast iron may be of the order of
16. The intensity of stress which causes unit strain is called
17. True stress-strain curve for materials is plotted between
18. 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
19. For steel, the ultimate strength in shear as compared to in tension is nearly
20. Which of the following has no unit.
21. Which is the false statement about true stress-strain method
22. In a tensile test on mild steel specimen, the breaking stress as compared to ultimate tensile stress is
23. If a part is constrained to move and heated, it will develop
24. Which of the following materials is most elastic
25. The value of modulus of elasticity for mild steel is of the order of
26. The value of Poisson's ratio for steel is between
27. The buckling load for a given material depends on
28. 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
29. The property of a material by virtue of which a body returns to its original, shape after removal of the load is called
30. The materials which exhibit the same elastic properties in all directions are called
31. The value of Poisson's ratio for cast iron is
32. The property of a material which allows it to be drawn into a smaller section is called
33. Poisson's ratio is defined as the ratio of
34. For which material the Poisson's ratio is more than unity
35. The property of a material by virtue of which it can be beaten or rolled into plates is called
36. The change in the unit volume of a material under tension with increase in its Poisson's ratio will
37. The percentage reduction in area of a cast iron specimen during tensile test would be of the order of
38. If a material expands freely due to heating it will develop
39. In a tensile test, near the elastic limit zone, the
40. The stress necessary to initiate yielding is
41. In the tensile test, the phenomenon of slow extension of the material, i. e. stress increasing with the time at a constant load is called
42. The stress developed in a material at breaking point in extension is called
43. Rupture stress is ________.
44. The elasticity of various materials is controlled by its
45. The ratio of lateral strain to the linear strain within elastic limit is known as
46. 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
47. The stress at which extension of the material takes place more quickly as com¬pared to the increase in load is called
48. The internal reaction in bottom 80 cm length will be
49. Flow stress corresponds to _______ .
50. When it is indicated that a member is elastic, it means that when force is applied, it will
51. The energy absorbed in a body, when it is strained within the elastic limits, is known as
52. Resilience of a material is considered when it is subjected to
53. The maximum strain energy that can be stored in a body is known as
54. The total strain energy stored in a body is termed as
55. Proof resilience per material is known as _____.
56. The stress induced in a body due to suddenly applied load compared to when it is applied gradually is
57. The strain energy stored in a body due to suddenly applied load compared to when it is applied gradually is
58. A material capable of absorbing large amount of energy before fracture is known as
59. Coaxing is the method of increasing
60. A beam is loaded as cantilever. If the load at the end is increased, the failure will occur
61. A non-yielding support implies that the
62. 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
63. In a prismatic member made of two materials so joined that they deform equal¬ly under axial stress, the unit stresses in two materials are
64. In riveted boiler joints, all stresses, shearing, bearing and tensile are based on the
65. The distance between the centers of the rivets in adjacent rows of zig-zag riveted joint is known as
66. Efficiency of a riveted joint is the ratio of its strength (max. load it can resist without failure) to the strength of the unpunished plate in
67. When two plates are butt together and riveted with cover plates with two rows of rivets, the joi;it is known as
68. A riveted joint in which every rivet of a row is opposite to other rivet of the outer row, is known as
69. A riveted joint in which the number otrivets decrease from innermost to outer most row is called
70. If the rivets in adjacent rows are staggered and the outermost row has only one rivet, the arrangement of the rivets is called
71. Diamond riveted joint can be adopted in the case of following type of joint
72. Rivets are made of following type of material
73. The weakest section of a diamond riveting is the section which passes through
74. 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
75. 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
76. A boiler shell 200 cm diameter and plate thickness 1.5 cm is subjected to internal pressure of 1.5 MN/m , then the hoop stress will be
77. A cylindrical section having no joint is known as
78. Longitudinal stress in a thin cylinder is
79. The safe twisting moment for a compound shaft is equal to the
80. The torsional rigidity of a shaft is expressed by the
81. The value of shear stress which is induced in the shaft due to the applied couple varies
82. A key is subjected to side pressure as well at shearing forces. These pressures are called
83. In a belt drive, the pulley diameter is doubled, the belt tension and pulley width remaining same. The changes required in key will be
84. Shear stress induced in a shaft subjected to tension will be_____.
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