The total strain energy stored in a body is termed as
A. Resilience
B. Proof resilience
C. Modulus of resilience
D. Toughness
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Mohr's circle is used to determine the stresses on an oblique section of a body subjected to
A. Direct tensile stress in one plane accompanied by a shear stress
B. Direct tensile stress in two mutually perpendicular directions
C. Direct tensile stress in two mutually perpendicular directions accompanied by a simple shear stress
D. All of the above
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A column of length (l ) with both ends fixed may be considered as equivalent to a column of length __________ with both ends hinged.
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In a tensile test, near the elastic limit zone, the
A. Tensile strain increases more quickly
B. Tensile strain decreases more quickly
C. Tensile strain increases in proportion to the stress
D. Tensile strain decreases in proportion to the stress
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In case of an under-reinforced beam, the depth of actual neutral axis is __________ that of the critical neutral axis.
A. Same as
B. Less than
C. Greater than
D. None of these
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When a bar is subjected to a change of temperature and its deformation is prevented, the stress induced in the bar is
A. Tensile stress
B. Compressive stress
C. Shear stress
D. Thermal stress
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A bar of length ‘L’ meters extends by ‘l ’ mm under a tensile force of ‘P’. The strain produced in the bar is
A. L l
B. 0.1 L l
C. 0.01 L l
D. 0.001 L l
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The weakest section of a diamond riveting is the section which passes through
A. The first row
B. The second row
C. The central row
D. One rivet hole of the end row
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Strain is equal to (where l = Original length and δ l = Change in length)
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In leaf springs, the maximum bending stress developed in the plates is (where W = Load acting on the spring, l = Span of the spring, n = Number of plates, b = Width of plates and t = Thickness of plates)
A. nb t 2 W l
B. 2 nb t 2 3 W l
C. nb t 2 2 W l
D. nb t 2 3 W l
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Formula based on IS codes is based on
A. Straight line formula
B. Euler’s formula
C. Rankine’s formula
D. Secant formula
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The elasticity of various materials is controlled by its
A. Ultimate tensile stress
B. Proof stress
C. Stress at yield point
D. Stress at elastic limit
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When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as ________ double cover butt joint.
A. Single riveted
B. Double riveted
C. Multi riveted
D. None of these
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The materials having same elastic properties in all directions are called
A. Ideal materials
B. Uniform materials
C. Isotropic materials
D. Piratical materials
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The materials which exhibit the same elastic properties in all directions are called
A. Homogeneous
B. Inelastic
C. Isotropic
D. Isentropic
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A material capable of absorbing large amount of energy before fracture is known as
A. Ductility
B. Toughness
C. Resilience
D. Shock proof
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Young's modulus is defined as the ratio of
A. Volumetric stress and volumetric strain
B. Lateral stress and lateral strain
C. Longitudinal stress and longitudinal strain
D. Shear stress to shear strain
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Modulus of rigidity may be defined as the ratio of
A. Linear stress to lateral strain
B. Lateral strain to linear strain
C. Linear stress to linear strain
D. Shear stress to shear strain
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Young's modulus may be defined as the ratio of
A. Linear stress to lateral strain
B. Lateral strain to linear strain
C. Linear stress to linear strain
D. Shear stress to shear strain
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Poisson's ratio is defined as the ratio of
A. Longitudinal stress and longitudinal strain
B. Longitudinal stress and lateral stress
C. Lateral stress and longitudinal stress
D. Lateral stress and lateral strain
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