1. The dimension of strain is?

a) LT-2
b) N/m2
c) N
d) Dimensionless

2. What is tensile strain?

a) The ratio of change in length to the original length
b) The ratio of original length to the change in length
c) The ratio of tensile force to the change in length
d) The ratio of change in length to the tensile force applied

3. i) Strain is a fundamental behaviour of a material.

ii) Strain does not have a unit.

a) Both i and ii are true and ii is the correct explanation of i

b) Both i and ii ate true but ii is not the correct explanation of i
c) i is true but ii is false
d) ii is true but i is false

4. The lateral strain is ___________

a) The ratio of axial deformation to the original length
b) The ratio of deformation in area to the original area
c) The strain at right angles to the direction of applied load
d) The ratio of length of body to the tensile force applied on it

5. Which of the following is not the unit of distance?

a) Angstrom
b) Light year
c) Micron
d) Milestone

6. A solid cube is subjected to equal normal forces on all its faces. The volumetric strain will be x-times
the linear strain in any of the three axes when?
a) X=1
b) X=2
c) X=3
d) X=4

7. Some structural members subjected to a long time sustained loads deform progressively with time
especially at elevated temperatures. What is such a phenomenon called?
a) Fatigue
b) Creep
c) Creep relaxation
d) Fracture

8. Consider two bars A and B of same material tightly secured between two unyielding walls. Coefficient
of thermal expansion of bar A is more than that of B. What are the stresses induced on increasing the
temperature?
a) Tension in both the materials
b) Tension in material A and compression in material B
c) Compression in material A and tension in material B
d) Compression in both the materials

9. 3. What will be the unit of compressive stress?

a) N
b) N/mm
c) N/mm2
d) Nmm

10. What is the process in which the metal is cooled rapidly in water after heating the metal above the
lower critical temperature to increase the hardness of the material?
a) Quenching
b) Tampering
c) Hardening
d) Annealing

11. What is the process of heating the metal in the furnance to a temperature slightly above the upper
critical temperature and cooling slowly In the furnance.
a) Quenching
b) Tampering
c) Annealing
d) Normalizing

12. Photo stress method is ___________

a) Stress analysis method
b) Creep test
c) Ultra violet test
d) None of the mentioned

13. Which one of the following has the largest value of thermal coefficient?
a) Brass
b) Copper
c) Steel
d) Aluminium

14. The property of a material by which it can be drawn into thin wires is?
a) Malleability
b) Plasticity
c) Ductility
d) Elasticity

15. Why is the strain the fundamental property but not the stress?
a) Because it is dimensionless
b) Because it is a ratio
 c) Because it’s value is calculated in the laboratory
d) No stress is the fundamental property

16. The material in which large deformation is possible before absolute failure by rupture is called
____________
a) Plastic
b) Elastic
c) Brittle
d) Ductile

17. The phenomenon of slow extension of materials having a constant load, I.e. increasing with the time
is called
a) Creeping
b) Yielding
c) Breaking
d) None of the mentioned

18. The law which states that within elastic limits strain produced is proportional to the stress producing
it is known as _____________
a) Bernoulli’s law
b) Hooke’s law
c) Stress law
d) Poisson’s law

19. For an isotropic, homogeneous and elastic material obeying Hooke’s law, the number of
independent elastic constants is ____________
a) 2
b) 3
c) 9
d) 1

20. Limit of proportionality depends upon ____________

a) Area of cross-section
b) Type of loading
c) Type of material
d) All of the mentioned

21. Within elastic limit, the volumetric strain is proportional to the hydrostatic stress. What is the
constant that relates these two quantities called?
a) Modulus of rigidity
b) Modulus of elasticity
c) Young’s modulus
d) Bulk modulus

22. What is another term for modulus of rigidity?

a) Shear modulus
b) Young’s modulus
c) Bulk modulus
 d) Modulus of elasticity

23. The strain energy of a member is:

a) inversely proportional to the square of the force acting on the member
b) directly proportional to the modulus of elasticity
c) inversely proportional to the cross-sectional area of the member
d) inversely proportional to the initial length of the member

24. ____ is the stress beyond which the material will not return to its original shape when unloaded but
will retain a permanent deformation.
a) Elastic limit
b) Proportional limit
c) Yield limit
d) Yield strength

25. The modulus of elasticity is also known as

a) Young’s modulus
b) Modulus of rigidity
c) Hooke’s ratio
d) Yield strength

26. The maximum stress that may be developed during a simple tension that the stress is a linear
function of strain.
a) elastic limit
b) proportional limit
c) yield point
d) rupture point

27. The maximum stress that may be developed during a simple tension test such that there is no
permanent or residual deformation when the load is entirely removed
a) elastic limit
b) proportional limit
c) yield point
d) rupture point

28. The region of the stress-strain curve extending from the origin to the proportional limit is called
a) rigid range
b) malleable range
c) elastic range
d) plastic range

29. The ordinate of the point at which there is an increase in strain with no increase in stress is known as
a) elastic limit
b) proportional limit
c) yield point
d) rupture point

30. A measure of the resistance of a material to change of volume without change of shape or form
 a) Young’s modulus
b) Modulus of rigidity
c) Bulk modulus
d) Shear modulus

31. What is the ratio of the transverse strain to the corresponding axial strain in a body subjected to
uniaxial stress?
a) Poisson’s ratio
b) Euler’s ratio
c) Refractive index
d) Dielectric index

32. What are the four basic forms of deformation of solid bodies?
a) Tension, compression, bending and twisting
b) Tension, compression, elongation and bending
c) Tension, compression, plastic and elastic
d) Tension, compression, elongation and torsion

33. What refers to the point in which the bending moment changes sign through a zero value?
a) Critical point
b) Point of inflection
c) Point of contraflexure
d) Point of zero stress

34. What is the unit of strain?

a) Pascal
b) Unitless
c) N-m
d) N-m/s

35. Volumetric stain is the:

a) change in volume per unit time
b) square root of difference of original volume and change in volume
c) original volume minus change in volume
d) ratio of change in volume to original volume

36. Which of the following materials has the least modulus of elasticity?
a) Steel
b) Glass
c) Copper
d) Aluminum

37. How many times greater is the plastic range of strain as compared to the elastic range of strain?
a) 100
b) 200
c) 300
d) 400
38. What does it means when the material is said to be “yielding”?
a) The material has pass through plastic range and enter the elastic range
b) The material has pass through elastic range and enter the plastic range
c) The material is in the elastic range only
d) The material is in the plastic range only

39. What is the maximum moment of a beam supported at both ends and carries a uniform load of w
throughout its entire length?
a) wL / 2
b) wL / 8
c) wL2 / 8
d) wL2 / 4

40. All are methods of determining the bar force of a truss member except one. Which one?
a) Method of joints
b) Method of section
c) Method of virtual work
d) Maxwell diagram

41. Strength of materials can most aptly be described as “statics of deformable _______ bodies”.
a) elastic
b) rigid
c) compressible
d) thermal

42. A ________ material is one having a relatively large tensile strain up to the point of rupture
a) malleable
b) brittle
c) conductible
d) ductile

43. A ________ material has a relatively small strain up to the point of rupture
a) brittle
b) malleable
c) ductile
d) conductible

44. The region of the stress-strain curve extending from the proportional limit to the point of rupture is
called
a) rigid range
b) malleable range
c) elastic range
d) plastic range

45. The maximum ordinate to the curve

a) yield strength
b) ultimate strength
c) tensile strength
 d) both B and C are correct

46. The ratio of the strain in the lateral direction to that in the axial direction
a) Pascal’s Number
b) Factor of Safety
c) Young’s Modulus
d) Poisson’s ratio

47. Defined as the ratio of the Young’s modulus to the specific weight
a) Specific Strength
b) Specific Rigidity
c) Specific Modulus
d) Specific Gravity

48. Stresses arising when a change in temperature affects the original length of a body
a) Kelvin stress
b) Thermal stress
c) Hydraulic stress
d) Humid stress

49. The typical Young’s modulus of steel is

a) 145 – 170 GPa
b) 195 – 210 GPa
c) 225 – 240 GPa
d) 275 – 310 GPa

50. Stress on an object is _________ its cross sectional area

a) directly proportional to
b) inversely proportional to
c) less than
d) greater than

51. The condition under which the stress is constant or uniform is known as
a) Shearing stress
b) Tangential stress
c) Torsion
d) Simple stress

52. Which of the following is/are known as tangential stress?

a) Circumferential stress
b) Hoop stress
c) Girth stress
d) All of the above

53. The maximum safe stress a material can carry

a) Optimum stress
b) Working stress
c) Differential stress
 d) Partial stress

54. Engineering strain is also known as

a) Hooke strain
b) Cauchy strain
c) Couch strain
d) Pascal strain

55. Is the twisting of an object due to an applied torque.

a) Torsion
b) Radial distortion
c) Circumferential shear
d) Centrifugal force

56. The angle of twist is measured in

a) Mils
b) Gradians
c) Radians
d) Degrees

57. The section of a beam at which the bending moment changes from positive to negative is called.
a) Critical point
b) Deflection point
c) Point of inflection
d) None of the above

58. The ratio of the lateral expansion to the longitudinal shortening of a concrete cylinder when
subjected to compressive load.
a) Modulus of elasticity
b) Poisson’s ratio
c) Modulus of rupture
d) None of the above

59. The stress in an elastic material is:

a) Inversely proportional to the materials yield strength
b) Inversely proportional to the force acting
c) Proportional to the displacement
d) Inversely proportional to the strain

60. Stress concentration factor:

a) Is a ratio of average stress on a section to the allowable stress
b) Is the ratio of areas involved in a sudden change of cross section
c) Is the ratio of maximum stress produced in a section to the average stress over the
section
d) Is the load factor applied to loads

61. The shear stress at the centre of a circular shaft under torsion is
a) Zero
 b) Minimum
c) Maximum
d) Infinity

62. Modulus of rigidity of a steel member is

a) Define as the unit shear stress divided by the unit shear deformation (shear strain)
b) Equal to the modulus of elasticity divided by one plus Poisson’s ratio
c) Defined as the length divided by the moment of inertia
d) Equal to approximately 7/10 of the modulus of elasticity

63. Fixing both ends of a simply supported beam that has a uniform load throughout the span will
increase the allowable load by:
a) 25%
b) 50%
c) 75%
d) 100%

64. The area of the shear diagram between any two points on the beam is equal to:
a) Change in shear between two points
b) Total shear between the two points
c) Average moment between the two points
d) Change in moment between the two points

65. For a system to be in equilibrium, the sum of the external forces acting on the system must be:
a) Equal to unity
b) A maximum
c) Indeterminate
d) Zero

66. Large deformation of a structural member bending out of line because of large and critical loads:
a) Buckle
b) Instability
c) Plastic deformation
d) All of the above

67. The sum of all forces in the orthogonal directions and sum of all moments about any point are zero:
a) Buckling load
b) Compatibility
c) Equilibrium
d) Stability

68. The ratio of the lateral expansion to the longitudinal shortening of a concrete cylinder when
subjected to compressive load.
a) Modulus of elasticity
b) Poisson’s ratio
c) Modulus of rupture
d) None of the above
69. To determine the required section modulus S, the minimum M max should be:
a) Multiplied by the maximum allowable bending stress
b) Divided by the maximum allowable bending stress
c) None in the list
d) Divided by the modulus of elasticity e and moment of inertia

70. A simple beam of length L has a concentrated load of P at a distance A from the left support and B
from the right support. The maximum moment in the beam is:
a. Pa2 /L
b. None in the list
c. Pa2 /L2
d. Pab/L

71. The stress which acts in a direction perpendicular to the area is called ____________
a) Shear stress
b) Normal stress
c) Thermal stress
d) None of the mentioned

72. Which of these are types of normal stresses?

a) Tensile and compressive stresses
b) Tensile and thermal stresses
c) Shear and bending
d) Compressive and plane stresses

73. Which type of stress does in a reinforcement bar is taken by the concrete?
a) Tensile stress
b) Compressive stress
c) Shear stress
d) Bending stress

74. What is the formula for shear stress?

a) Shear resistance/shear area
b) Force/unit area
c) Bending strain/area
d) Shear stress/length

75. The transverse shear stress acting in a beam of rectangular cross-section, subjected to a transverse
shear load, is ____________
a) variable with maximum at the bottom of the beam
b) Variable with maximum at the top of the beam
c) Uniform
d) Variable with maximum on the neutral axis

76. Stress in a beam due to simple bending is ____________

a) Directly proportional
b) Inversely proportional
 c) Curvilinearly related
d) None of the mentioned

77. Which stress comes when there is an eccentric load applied?

a) Shear stress
b) Bending stress
c) Tensile stress
d) Thermal stress

78. On bending of a beam, which is the layer which is neither elongated nor shortened?
a) Axis of load
b) Neutral axis
c) Center of gravity
d) None of the mentioned

79. When equal and opposite forces applied to a body, tend to elongate it, the stress so produced, is
called ____________
a) Shear stress
b) Compressive stress
c) Tensile stress
d) Transverse stress

80. In a tensile test, near the elastic limit zone ____________

a) Tensile stress increases in linear proportion to the stress
b) Tensile stress increases at a faster rate
c) Tensile stress decreases at a faster rate
d) None of the mentioned

81. For keeping the stress wholly compressive the load may be applied on a circular column anywhere
within a concentric circle of diameter _____________
a) D/2
b) D/3
c) D/4
d) D/8

82. A solid circular shaft of diameter d is subjected to a torque T. the maximum normal stress induced in
the shaft is ____________
a) Zero
b) 16T/πd3
c) 32T/πd3
d) None of the mentioned

83. When a rectangular beam is loaded transversely, the maximum compressive stress develops on
____________
a) Bottom fibre
b) Top fibre
c) Neutral axis
d) Every cross-section
84. Which test is conducted to measure the ability of a material to resist scratching, abrasion,
deformation and indentation?
a) Creep test
b) Fatigue test
c) Hardness test
d) Compression test

85. Which test is conducted to measure the endurance limit of the material?
a) Creep test
b) Fatigue test
c) Compression test
d) Hardness test

86. SI units of shear force is _______________

a) kN/m
b) kN-m
c) kN
d) m/N

87. SI units of Bending moment is ___________

a) kN
b) kN2
c) kNm
d) km

88. _________ of a beam is a measure of its resistance against deflection.

a) Strength
b) Stiffness
c) Deflection
d) Slope

89. The term “Tenacity” means __________

a) Working stress
b) Ultimate stress
c) Bulk modulus
d) Shear modulus

90. Strength of the beam depends only on the cross section.

a) True
b) False

91. Time dependent permanent deformation is called ________________.

a) Plastic deformation
b) Elastic deformation
c) Creep
d) Anelastic deformation
92. Engineering stress-strain curve and True stress-strain curve are equal up to
a) Proportional limit
b) Elastic limit
c) Yeild point
d) Tensile strength point

93. Value of Poisson’s ratio for ionic solids in the range of

a) 0.1
b) 0.2
c) 0.3
d) 0.4

94. Hydrostatic stress results in the following

a) Linear strain
b) Shear strain
c) Both linear and shear strains
d) None

95. High elastic modulus in materials arises from

a) High strength of bonds
b) Weak bonds
c) combination of bonds
d) None

96. Shape of true stress-strain curve for a material depends on

a) Strain
b) Strain rate
c) Temperature
d) All

97. Toughness of a material is equal to area under ____________ part of the stress-strain
curve.
a) Elastic
b) Plastic
c) Both
d) None

98. True stress-strain curve need to be corrected after

a) Elastic limit
b) Yield limit
c) Tensile strength
d) no need to correct

99. Plastic deformation results from the following

a) Slip
b) Twinning
c) Both
d) None
100. Time dependent recoverable deformation under load is called ____________
deformation.
a) Elastic
b) Anelastic
c) Elastic after-effect
d) Visco-elastic