1. The ultimate strength of steel in tension in comparison to shear is in the ratio of
2. The pciTnissible stress for carbon steel under static loading is generally taken as
3. The property of a material which enables it to resist fracture due to high impact loads is known as
4. A hot short metal is _______.
5. Guest's theory of failure is applicable for following type of materials
6. Rankine's theory of failure is applicable for following type of materials
7. If an unsupported uniform cross sectional elastic bar is subjected to a longitudinal impact from a rigid bob moving with velocity v, then a compressive wave of intensity sc is propagated through the bar as follows
8. Tensile strength of a mild steel specimen can be roughly predicted from following hardness test
9. Resilience of a material is important, when it is subjected to
10. In the case of an elastic bar fixed at upper end and loaded by a falling weight at lower end, the shock load produced can be decreased by
11. Other method of reducing shock load in the above case can be
12. If a load W is applied instantaneously on a bar; then the stress induced in bar will
13. Brittle coating technique is used for ________.
14. Stress concentration is caused due to
15. The endurance limit of a material with finished surface in comparison to rough surface is
16. Plastic flow in ductile materials
17. The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be
18. The fatigue life of a part can be improved by
19. Stress concentration in static loading is more serious in
20. Stress concentration in cyclic loading is more serious in
21. Endurance limit or fatigue limit is the maximum stress that a member can withstand for an infinite number of load applications without failure when subjected to
22. Pick up wrong statement. Fatigue strength can be increased by
23. Which of the following is not correct procedure to increase the fatigue limit
24. Coaxing is the procedure of increasing
25. Which is correct statement ?Stress concentration in static loading is
26. The notch angle of the Izod impact test specimen is
27. In Vicker's hardness testing, the pyramid indentor apex is
28. Which is correct statement ?Stress concentration in cyclic loading is
29. In testing a material for endurance strength, it is subjected to
30. If a material fails below its yield point, failure would be due to
31. The fatigue limit of a material
32. Cold working is ______.
33. Yield point in fatigue loading as compared to static loading is
34. Residual stress in materials is ______.
35. The building up of worn and uridersized parts, subjected to repeated loads by electroplating is
36. In nitrided parts, the origins of the fatigue cracks will occur at
37. Which process will increase the fatigue duration of parts ?
38. Which is correct statement ?
39. Resistance to fatigue of a material is measured by
40. In most machine members, the damping capacity of the material should be
41. The ratio of endurance limit in shear to the endurance limit in flexure is
42. For steel, the ultimate strength in shear as compared to ultimate strength in tension is
43. The endurance limit in shear of carbon steel can be obtained by multiplying the endurance limit in flexure by a factor of
44. At low temperatures (say 75°C) the notched-bar impact value of steel
45. A bolt is ________.
46. The crest diameter of a screw thread is same as
47. If d is the diameter of bolt hole then for a flanged pipe joint to be leak proof, the circumferential pitch of the bolts should be
48. Maximum principal stress theory is applicable for
49. The following type of nut is used with alien bolt
50. A stud is __________.
51. Shear stress theory is applicable for
52. A tap bolt ________.
53. For applications involving high stresses in one direction only the following type of thread would be best suited
54. The included angle in unified of American National threads is
55. The function of a washer is to
56. Cap screws are ______.
57. An alien bolt is ________.
58. The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under load W will be
59. Ball bearing type screws are found in following application
60. Set screws are
61. A self locking screw has
62. The designation M 33 x 2 of a bolt means
63. Machine screws are
64. Rivets are generally specified by
65. The edges of a boiler plate are bevelled to an angle of
66. Which of the following is a permanent fastening ?
67. In order to avoid tearing of the plate at edge, the distance from the centre line of the rivet hole to the nearest edge of the plate in terms of dia. of rivet d should be equal to
68. If the tearing efficiency of a riveted joint is 75%, then the ratio of diameter of rivet to the pitch is equal to
69. Transverse fillet welded joints are designed for
70. Jam nut is a locking device in which
71. The pitch of threads on a Jock nut in comparison to pitch of nut is
72. Buttress threads are usually found on
73. In order to obtain bolt of uniform strength
74. A key capable of tilting in a recess milled out in a shaft is known as
75. A key made from a cylindrical disc having segmental cross-section, is known as
76. A tapered key which fits in a keyway in the hub and is flat on the shaft, is known as
77. Fibrous fracture occurs in
78. Turn buckle has
79. Eye bolts are used for
80. Elastic nut is a locking device in which
81. If d is the normal diameter of a bolt in mm, then the initial tension in kg in a bolt used for making a fluid tight joint as for steam engine cover joint is calculated by the relation
82. If threads on a bolt are left hand, threads on nut will be
83. Taper usually provided on cotter is
84. Applications in which stresses are encountered in one direction only uses following type of threads
85. The draw of cotter need not exceed
86. A bench vice has following type of threads
87. The valve rod in a steam engine is connected to an eccentric rod by
88. Split nut is a locking device in which
89. Taper on the cotter and slot is provided
90. The function of cutting oil when threading a pipe is to
91. Silver-based solder is used for
92. For tight leakage joints, following type of thread is best suited
93. In order to permit the thermal expansion/contraction of tubing, it should be
94. A tube has the following advantage over pipe
95. The strap end of a connecting rod of steam engine is joined by
96. A backing ring is used inside the pipe joint when making a
97. The shear plane in case of bolts should
98. Castle nut is a locking device in which
99. When a nut is tightened by plapjng a washer below it, the bolt will be subjected to following type of loads
100. Gear box is used
101. The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for
102. The piston rod of a steam engine is usually connected to the crosshead by means of
103. Which of the following pipe joints would be suitable for pipes carrying steam
104. Spring index is
105. The shearing stresses in the inner face as compared to outer face of the wire in a heavy close coiled spring is
106. Form coefficient of spring is
107. Spring stiffness is
108. When two springs are in series (having stiffness K), the equivalent stiffness will be
109. When a close coiled helical spring is compressed, its wire is subjected to
110. If a spring is cut down into two springs, the stiffness of cut springs will be
2. The pciTnissible stress for carbon steel under static loading is generally taken as
3. The property of a material which enables it to resist fracture due to high impact loads is known as
4. A hot short metal is _______.
5. Guest's theory of failure is applicable for following type of materials
6. Rankine's theory of failure is applicable for following type of materials
7. If an unsupported uniform cross sectional elastic bar is subjected to a longitudinal impact from a rigid bob moving with velocity v, then a compressive wave of intensity sc is propagated through the bar as follows
8. Tensile strength of a mild steel specimen can be roughly predicted from following hardness test
9. Resilience of a material is important, when it is subjected to
10. In the case of an elastic bar fixed at upper end and loaded by a falling weight at lower end, the shock load produced can be decreased by
11. Other method of reducing shock load in the above case can be
12. If a load W is applied instantaneously on a bar; then the stress induced in bar will
13. Brittle coating technique is used for ________.
14. Stress concentration is caused due to
15. The endurance limit of a material with finished surface in comparison to rough surface is
16. Plastic flow in ductile materials
17. The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be
18. The fatigue life of a part can be improved by
19. Stress concentration in static loading is more serious in
20. Stress concentration in cyclic loading is more serious in
21. Endurance limit or fatigue limit is the maximum stress that a member can withstand for an infinite number of load applications without failure when subjected to
22. Pick up wrong statement. Fatigue strength can be increased by
23. Which of the following is not correct procedure to increase the fatigue limit
24. Coaxing is the procedure of increasing
25. Which is correct statement ?Stress concentration in static loading is
26. The notch angle of the Izod impact test specimen is
27. In Vicker's hardness testing, the pyramid indentor apex is
28. Which is correct statement ?Stress concentration in cyclic loading is
29. In testing a material for endurance strength, it is subjected to
30. If a material fails below its yield point, failure would be due to
31. The fatigue limit of a material
32. Cold working is ______.
33. Yield point in fatigue loading as compared to static loading is
34. Residual stress in materials is ______.
35. The building up of worn and uridersized parts, subjected to repeated loads by electroplating is
36. In nitrided parts, the origins of the fatigue cracks will occur at
37. Which process will increase the fatigue duration of parts ?
38. Which is correct statement ?
39. Resistance to fatigue of a material is measured by
40. In most machine members, the damping capacity of the material should be
41. The ratio of endurance limit in shear to the endurance limit in flexure is
42. For steel, the ultimate strength in shear as compared to ultimate strength in tension is
43. The endurance limit in shear of carbon steel can be obtained by multiplying the endurance limit in flexure by a factor of
44. At low temperatures (say 75°C) the notched-bar impact value of steel
45. A bolt is ________.
46. The crest diameter of a screw thread is same as
47. If d is the diameter of bolt hole then for a flanged pipe joint to be leak proof, the circumferential pitch of the bolts should be
48. Maximum principal stress theory is applicable for
49. The following type of nut is used with alien bolt
50. A stud is __________.
51. Shear stress theory is applicable for
52. A tap bolt ________.
53. For applications involving high stresses in one direction only the following type of thread would be best suited
54. The included angle in unified of American National threads is
55. The function of a washer is to
56. Cap screws are ______.
57. An alien bolt is ________.
58. The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under load W will be
59. Ball bearing type screws are found in following application
60. Set screws are
61. A self locking screw has
62. The designation M 33 x 2 of a bolt means
63. Machine screws are
64. Rivets are generally specified by
65. The edges of a boiler plate are bevelled to an angle of
66. Which of the following is a permanent fastening ?
67. In order to avoid tearing of the plate at edge, the distance from the centre line of the rivet hole to the nearest edge of the plate in terms of dia. of rivet d should be equal to
68. If the tearing efficiency of a riveted joint is 75%, then the ratio of diameter of rivet to the pitch is equal to
69. Transverse fillet welded joints are designed for
70. Jam nut is a locking device in which
71. The pitch of threads on a Jock nut in comparison to pitch of nut is
72. Buttress threads are usually found on
73. In order to obtain bolt of uniform strength
74. A key capable of tilting in a recess milled out in a shaft is known as
75. A key made from a cylindrical disc having segmental cross-section, is known as
76. A tapered key which fits in a keyway in the hub and is flat on the shaft, is known as
77. Fibrous fracture occurs in
78. Turn buckle has
79. Eye bolts are used for
80. Elastic nut is a locking device in which
81. If d is the normal diameter of a bolt in mm, then the initial tension in kg in a bolt used for making a fluid tight joint as for steam engine cover joint is calculated by the relation
82. If threads on a bolt are left hand, threads on nut will be
83. Taper usually provided on cotter is
84. Applications in which stresses are encountered in one direction only uses following type of threads
85. The draw of cotter need not exceed
86. A bench vice has following type of threads
87. The valve rod in a steam engine is connected to an eccentric rod by
88. Split nut is a locking device in which
89. Taper on the cotter and slot is provided
90. The function of cutting oil when threading a pipe is to
91. Silver-based solder is used for
92. For tight leakage joints, following type of thread is best suited
93. In order to permit the thermal expansion/contraction of tubing, it should be
94. A tube has the following advantage over pipe
95. The strap end of a connecting rod of steam engine is joined by
96. A backing ring is used inside the pipe joint when making a
97. The shear plane in case of bolts should
98. Castle nut is a locking device in which
99. When a nut is tightened by plapjng a washer below it, the bolt will be subjected to following type of loads
100. Gear box is used
101. The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for
102. The piston rod of a steam engine is usually connected to the crosshead by means of
103. Which of the following pipe joints would be suitable for pipes carrying steam
104. Spring index is
105. The shearing stresses in the inner face as compared to outer face of the wire in a heavy close coiled spring is
106. Form coefficient of spring is
107. Spring stiffness is
108. When two springs are in series (having stiffness K), the equivalent stiffness will be
109. When a close coiled helical spring is compressed, its wire is subjected to
110. If a spring is cut down into two springs, the stiffness of cut springs will be
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