1. The property by which a body returns to its original shape after removal of the force is called
Correct : B. elasticity
2. The property of a material by which it can be beaten or rolled into thin plates is called
Correct : A. malleability
3. Which law is also called as the elasticity law?
Correct : C. hooke’s law
4. The materials which have the same elastic properties in all directions are called
Correct : A. isotropic
5. A member which does not regain its original shape after removal of the load producing deformation is said
Correct : A. plastic
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?
Correct : B. elastic limit
7. The materials which have the same elastic properties in all directions are called
Correct : A. isotropic
8. As the elastic limit reaches, tensile strain
Correct : A. increases more rapidly
9. What kind of elastic materials are derived from a strain energy density function?
Correct : C. hyper elastic materials
10. What the number that measures an object’s resistance to being deformed elastically when stress is applied to it?
Correct : A. elastic modulus
11. The slope of the stress-strain curve in the elastic deformation region is
Correct : A. elastic modulus
12. What is the stress-strain curve?
Correct : B. it is the relationship between stress and strain
13. Which point on the stress strain curve occurs after the proportionality limit?
Correct : C. elastic limit
14. Which point on the stress strain curve occurs after the lower yield point?
Correct : A. yield plateau
15. Which point on the stress strain curve occurs after yield plateau?
Correct : C. ultimate point
16. Which point on the stress strain curve occurs after the ultimate point?
Correct : B. breaking point
17. Elastic limit is the point
Correct : C. up to which if the load is removed, original volume and shapes are regained
18. What is the point P shown on the stress strain curve?
Correct : D. ultimate point
19. What is the point P shown in the stress- strain curve?
Correct : D. breaking point
20. What is the point shown in the stress strain curve?
Correct : B. lower yield point
21. Where is the necking region?
Correct : D. the area between the ultimate point and rupture
22. What is the elastic modulus of steel?
Correct : C. 190-217 gpa
23. What is the elastic modulus of titanium alloys?
Correct : C. 80-130 gpa
24. What is the order of elastic modulus for Nickel alloys, Lead alloys, Molybdenum alloys, alumina?
Correct : C. pb < ni < mo < al2o3
25. What property enhances with a decrease in E?
Correct : A. flexibility
26. What is the unit of elastic modulus?
Correct : B. gpa
27. When applied stress is of shear type, the modulus of elasticity is known as
Correct : C. shear modulus
28. Which of the following tensile property is dimensionless?
Correct : C. true strain
29. What is a factor which controls the elastic modulus?
Correct : C. interatomic forces
30. Stress should not exceed when in service.
Correct : A. yield strength
31. Stress should not exceed when in mechanical working
Correct : B. tensile strength
32. Ductility of material is its ability to flow plastically under compressive load.
Correct : B. false
33. Work per unit volume of the material is a known modulus of toughness.
Correct : A. true
34. Which of the following cannot be determined using a torsion test?
Correct : D. young’s modulus
35. What is the use of weight head in a torsion testing equipment?
Correct : C. holding the job and measuring the twisting moment
36. Which of the following is used to measure how much the specimen is twisted?
Correct : C. troptometer
37. Torsional stress multiplied with original cross sectional are is:
Correct : A. maximum twisting load
38. Plastic deformation can only occur in case of torsional force.
Correct : B. false
39. What is the unit of polar moment of inertia?
Correct : D. m4
40. Torque is moment.
Correct : A. twisting
41. Shear stress on a solid bar and hollow bar is same for given dimension.
Correct : B. false
42. In which of the following the angle of twist increases fast for a small amount of torque?
Correct : B. hot working condition
43. Torsion is denoted by
Correct : C. t
44. The SI units for torsion is
Correct : A. n m
45. torsion is produced when twisting couple coincides with the axis of the shaft.
Correct : B. pure
46. Which of the following is known as Re- entrant mouthpiece?
Correct : C. internal mouthpiece
47. What is the general value for coefficient of contraction?
Correct : A. 0.64
48. The Cd value for internal mouthpiece running free is
Correct : B. 0.5
49. is the velocity with which water reaches the notch or before it flows over it.
Correct : C. velocity of approach
50. Which of the following is also known as V notch?
Correct : C. triangular
51. Calculate the discharge over rectangular Weir of 3 metres length under the head of 400mm.Use Francis formula.
Correct : B. 1.396 m3/s
52. converts mechanical energy into hydraulic energy.
Correct : B. pump
53. Torsional sectional modulus is also known as
Correct : A. polar modulus
54. is a measure of the strength of shaft in rotation.
Correct : C. polar modulus
55. What are the units of torsional rigidity?
Correct : A. nmm2
56. The angle of twist can be written as
Correct : C. tl/cj
57. The power transmitted by shaft SI system is given by
Correct : A. 2πnt/60
58. Area of catchment is measured in
Correct : B. km2
59. catchment area is a sum of free catchment area and intercepted catchment area.
Correct : C. combined
60. has steep slopes and gives more run off.
Correct : B. good catchment area
61. Trend of rainfall can be studied from
Correct : B. rainfall records
62. Runoff coefficient is denoted by
Correct : C. k
63. is a graph showing variations of discharge with time.
Correct : C. hydraulic graph
64. Calculate the torque which a shaft of 300 mm diameter can safely transmit, if the shear stress is 48 N / mm2.
Correct : B. 254 knm
65. What is the bending moment at end supports of a simply supported beam?
Correct : C. zero
66. What is the maximum shear force, when a cantilever beam is loaded with udl throughout?
Correct : A. w×l
67. What is the maximum bending moment for simply supported beam carrying a point load “W” kN at its centre?
Correct : D. w×l/4 knm
68. How do point loads and udl be represented in SFD?
Correct : C. simple lines and inclined lines
69. curve is formed due to bending of over hanging beams.
Correct : A. elastic
70. The relation between slope and maximum bending moment is
Correct : B. inversely proportion
71. What is the SF at support B?
Correct : D. 0 kn
72. Where do the maximum BM occurs for the below diagram.
Correct : C. -105 knm
73. The ratio of maximum deflection of a beam to its is called stiffness of the beam.
Correct : C. span
74. Stiffness of the beam is inversely proportional to the of the beam.
Correct : C. deflection
75. The maximum should not exceed the permissible limit to the span of the beam.
Correct : B. deflection
76. In cantilever beam the deflection occurs at
Correct : A. free end
77. The maximum deflection in cantilever beam of span “l”m and loading at free end is “W” kN.
Correct : B. wl3/3ei
78. fluids are practical fluids
Correct : B. real
79. The inverse of specific weight of a fluid is
Correct : B. specific volume
80. Specific gravity of water is
Correct : B. 1
81. Compute the maximum deflection at free end of a cantilever beam subjected to udl for entire span of l metres.
Correct : A. wl4/8ei
82. Which of the following is not an example of Malleability?
Correct : C. torsteel
83. Which of the following is not correct?
Correct : A. angles and t section are strong in bending
84. Local buckling can be prevented by
Correct : C. changing material
85. Which of the following is true?
Correct : D. in case of rolled section, high thickness of plate is adopted to prevent local buckling
86. Which of the following is not true?
Correct : B. slender sections are preferred in hot rolled structural steelwork
87. As per IS specification, the beam sections should be
Correct : B. at least symmetrical about one of the principal axes
88. A beam is said to be of uniform strength, if
Correct : D. bending stress is the same at every section along its longitudinal axis
89. Which stress comes when there is an eccentric load applied?
Correct : B. bending stress
90. What is the expression of the bending equation?
Correct : A. m/i = σ/y = e/r
91. On bending of a beam, which is the layer which is neither elongated nor shortened?
Correct : B. neutral axis
92. Consider a 250mmx15mmx10mm steel bar which is free to expand is heated from 15C to 40C. what will be developed?
Correct : D. no stress
93. The motion of the earth about its axis is periodic and simple harmonic.
Correct : B. false
94. An object of mass 0.2kg executes simple harmonic motion along the x-axis with a frequency of (25/π)Hz. At the position x = 0.04, the object has kinetic energy of 0.5J and potential energy 0.4J. The amplitude of oscillation is?
Correct : A. 6cm
95. A spring of force constant 800N/m has an extension of 5cm. The work done in extending it from 5cm to 15cm is?
Correct : A. 8j
96. A simple pendulum is attached to the roof of a lift. If the time period of oscillation, when the lift is stationary is T, then the frequency of oscillation when the lift falls freely, will be
Correct : A. zero
97. A lightly damped oscillator with a frequency v is set in motion by a harmonic driving force of frequency v’. When v’ is lesser than v, then the response of the oscillator is controlled by
Correct : A. spring constant
98. What is the time period of a pendulum hanged in a satellite? (T is the time period on earth)
Correct : C. infinite
99. Which of the following functions represents a simple harmonic oscillation?
Correct : A. sinωt-cosωt
100. The ratio of velocity of sound in hydrogen and oxygen at STP is