(Home)DE-323 PRINCIPLES OF DAIRY MACHINE DESIGN (Mark Correct)
1. ---------- deals with mechanics of rigid body and study of external forces and their effects on rigid body
2. ------- is the study of internal resisting forces developed in a deformable body under the action of external forces
3. -------- branch of a mechanics which deals with the study of forces on a body which is at rest
4. The study of forces and the displacement of bodies, without addressing the cause of movement is
5. The forces, whose lines of action lie on the same plane, are known as
6. The opposing force ,which acts in the opposite direction of the movement of the body is---------
7. The force of friction depends upon the ------------- of the surfaces
8. -------- friction is also called as kinetic friction
9. μ=tanθ =F/R in the given equation what does 'θ' indicate
10. A material which at a point properties are different in three mutually perpendicular direction
11. ------ is measure of an object's resistance to changes to its rotation is the inertia of a rotating body with respect to its rotation
12. If the sum of the clockwise moments is equal to the sum of the anticlockwise moments is called
13. Parallel axis theorem formula is given by
14. ----------- is called second moment of mass
15. Moment of inertia of a rectangular cross section about N.A is
16. The dynamics which deals with the problems without referring to the forces causing the motion of the body is termed as
17. The dynamics deals with the problems with referring to the forces causing the motion of the body is termed as
18. In -------- motion orientation of body never changes
19. In ---------motion, no two points have same linear velocity or linear acceleration even they have same angular velocity and angular acceleration.
20. In a body if the relative positions of any two particles in it do not changeunder the action of the forces
21. --------- is defined as the maximum internal resistance forces (stress) that can a material with stand without any failure
22. Work done is
23. -------- the properties of the material at any given point the properties of given material are same in all direction
24. -------- is the ability of a material i.e. the resistance against deformation
25. Find the coefficient of friction if F=7N and R=14N
26. When a section is subjected to axial pull acting normally across the section, the stress is
27. Hooke's law is obeyed by many materials as long as load does not exceed
28. A Cartesian block is 5 cm2 cross section carries an axial tensile loud of 10 t. The maximum axial stress in the block is given by
29. A strut is a member, which is primarily subjected to
30. What is the property of a material, which regains shape when load is removed
31. The stress based on actual area of cross section during tension stage of a mild steel specimen is called
32. Which of the following is considered as a true characteristic yield stress for mild steel
33. For mild steel the lower yield points more significant then upper yield point because
34. The gauge length to be used for conduction of tension test is generally function of
35. The yield stress of a twisted bar as compared to an ordinary mild steel bar is nearly
36. Poisson's ratio is given as
37.The ratio of young's modulus to modulus of rigidity for a material having poisson's ratio 0.2 is
38. The relation between the three elastic constants is
39. For engineering materials, poisson's ratio lies between
40. The relation between young's modulus and bulk modulus is
41. Twisting moment is a moment applied in the plane of cross section acting
42. When a shaft is subjected to pure twisting the type of stress developed in the shaft is
43. In a shaft subjected to pure twist the maximum shear stress will be at
44. For transmitting same power all properties remaining same between a solid shaft and hollow shaft
45. A long shaft of diameter d is subjected to twisting moment T at its ends. The maximum normal stress acting at its cross section is equal to
46. A ------- is a device used to connect two shafts together at their ends for the purpose of transmitting power
47. The rotating machine element which is used to transmit power from one place to another is called
48. ----------is the main use is to convey power to the wheels of a vehicle
49. In power transmission formula i.e. P=T.w,< stands for w
50. Shaft that is overhanging a support and supplying power through a pulley is subjected to
51. The shape of S.F.D for a cantilever subjected to a couple at its free end is
52. The bending moment in beam is maximum where
53. The point of contra-flexure are the point where
54. The shape of bending moment diagram for a uniform cantilever beam carrying a uniformly distributed load over its length
55. The shape of bending moment diagram for a simply supported beam carrying point load at its center.
56. A portion of a beam between two sections is said to be in pure bending when there is
57. Curvature of a beam is equal to
58. A rectangular section beam is subjected to a bending moment M. if the depth of the section is constant, then its width will vary as
59. In a Prismatic beam under the action of pure bending
60. A beam is said to be uniform strength when
61. The ratio of average shear stress to maximum shear stress in a beam of square cross-section is
62. The ratio of maximum shear stress developed in a beam of rectangular section to that of the average shear stress is
63. The shear stress at any section at a distance 'y' from neutral axis(N.A) is given by
64. The shape of the shear stress distribution diagram for a rectangular beam is
65. A rectangular beam of 100mm wide is subjected to maximum shear force of 50kN,the corresponding maximum shear stress being 3N/mm2.The depth of the beam is equal to
66. The flexural strength of a beam depends up on
67. Which of the following section is the most efficient in carrying moment
68. Flexural strength formula is valid only for
69. A steel bar of 3t thickness is cut horizontally in two pieces of t & 2t respectively, the maximum flexural stress will be in the ratio
70. In flexural theory of beams, the neutral axis has the following characteristics
71. The factor of safety for steel and for steady load is
72. The factor of safety for brittle materials
73. The factor of safety for ductile materials
74. The design, where designer starts with the existing design, but the final product is different
75. CAD design means
76. The ability of a material to absorb a large amount of energy is
77. ---------- decreases resistance of a material to repeated reversals of stress
78. Which of the following is primarily responsible for toughness of steel
79. As compare to mild steel, high carbon steel has less
80. A slow and permanent deformeting of body due to a constant stress at high temperature for long period is called
81. Rankine's theory is also known as
82. Guest's theory
83. In static loading, stress concentration is more serious in
84. In cyclic loading, stress concentration is more serious in
85. Saint Venant's theory is not generally used because
86. A solid shaft transmits a torque T. The allowable shear stress is T. The diameter of the shaft is
87. The material suitable for the belts used in agricultural equipment is
88. The tension in the slack side of the belt is ------- the tension in the tight side of the belt
89. All stresses produced in a belt are
90. If belt thickness is relatively large for the size of pulley,
91. The maximum linear speed of V-belt is
92. Which one of the following is anti friction bearing
93. The tapered roller bearings can take
94. The rolling contact bearings are known as
95. Most common oil used in sealed bearings is
96. A hole is provided at the top of housing Journal bearing for
97. A spring used to absorb maximum shocks and vibrations among the following is
98. Which of the following spring is used in a mechanical wrist watch
99. A leaf spring in automobiles is used to
100. In leaf spring the longest leaf is known as
101. The spring mostly used in clocks is
102. When a helical compression spring is subjected to an arial compressive load, the stress induced in the wire is
103. Spring index of a helical spring is given by when D= dia of spring D= wire diameter
104. Reflecting in a helical spring, where N =no of active turns G =Shear modules of elasticity
105. Two coiled springs each having stiffness k are placed in parallel. The equivalent stiffness is
106. In leaf spring, the sequence of arrangement of leaves of different lengths is