Proportional to the distortion of the stress within the elastic limit. Whose formula is this?

Proportional to the distortion of the stress within the elastic limit. Whose formula is this?
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Proportion of stress distortion within the elastic limit. This is Robert Hooke's formula.
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Hooke's law (A) Applies to elastic deformation (B) Applies beyond limit of proportionality in stress-strain curve (C) States that stress is inversely proportional to strain upto elastic limit (D) None of these

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Last Answer : (A) Applies to elastic deformation

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Last Answer : (B) Surface of velocity distribution is a paraboloid of revolution, whose volume equals half the volume of circumscribing cylinder

How is the ratio of stress and distortion always constant ?

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What is the ratio of stress to distortion called ?

Description : What is the ratio of stress to distortion called ?

Last Answer : The ratio of stress to distortion is called elastic coefficient.

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Among maximum shear stress theory and distortion energy theory, which gives the higher value shear yield strength? a) Maximum shear stress theory b) Distortion energy theory c) Both give equal values d) Vary from material to material

Description : Among maximum shear stress theory and distortion energy theory, which gives the higher value shear yield strength? a) Maximum shear stress theory b) Distortion energy theory c) Both give equal values d) Vary from material to material

Last Answer : b) Distortion energy theory

In distortion energy theorem, if a unit cube is subjected to biaxial stress, then S(yt) is given by which of the following? a) √ (σ12- σ1σ2 +σ22) b) σ12- σ1σ2 +σ22 c) √ (σ12+ σ1σ2 +σ22) d) σ12+ σ1σ2 +σ22

Description : In distortion energy theorem, if a unit cube is subjected to biaxial stress, then S(yt) is given by which of the following? a) √ (σ12- σ1σ2 +σ22) b) σ12- σ1σ2 +σ22 c) √ (σ12+ σ1σ2 +σ22) d) σ12+ σ1σ2 +σ22

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A transmission shaft subjected to pure bending moment should be designed on the basis of (A) Maximum principal stress theory (B) Maximum shear stress theory (C) Distortion energy theory (D) Goodman or Soderberg diagrams

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Last Answer : (A) Maximum principal stress theory

Among maximum shear stress theory and distortion energy theory, which gives the higher value shear yield strength? a) Maximum shear stress theory b) Distortion energy theory c) Both give equal values d) Vary from material to material

Description : Among maximum shear stress theory and distortion energy theory, which gives the higher value shear yield strength? a) Maximum shear stress theory b) Distortion energy theory c) Both give equal values d) Vary from material to material

Last Answer : b) Distortion energy theory

In distortion energy theorem, if a unit cube is subjected to biaxial stress, then S(yt) is given by which of the following? a) √ (σ12- σ1σ2 +σ22) b) σ12- σ1σ2 +σ22 c) √ (σ12+ σ1σ2 +σ22) d) σ12+ σ1σ2 +σ22

Description : In distortion energy theorem, if a unit cube is subjected to biaxial stress, then S(yt) is given by which of the following? a) √ (σ12- σ1σ2 +σ22) b) σ12- σ1σ2 +σ22 c) √ (σ12+ σ1σ2 +σ22) d) σ12+ σ1σ2 +σ22

Last Answer : a) √ (σ12- σ1σ2 +σ22)

Distortion energy theory is slightly liberal as compared to maximum shear stress theory. a) True b) False

Description : Distortion energy theory is slightly liberal as compared to maximum shear stress theory. a) True b) False

Last Answer : a) True

Newton's law of viscosity is a relationship between (A) Shear stress and the rate of angular distortion (B) Shear stress and viscosity (C) Shear stress, velocity and viscosity (D) Pressure, velocity and viscosity

Description : Newton's law of viscosity is a relationship between (A) Shear stress and the rate of angular distortion (B) Shear stress and viscosity (C) Shear stress, velocity and viscosity (D) Pressure, velocity and viscosity

Last Answer : Answer: Option A

Shear stress causes (a) Deformation (b) Distortion (c) Deformation as well as distortion (d) None

Description : Shear stress causes (a) Deformation (b) Distortion (c) Deformation as well as distortion (d) None

Last Answer : b) Distortion

Shear stress causes (a) Deformation (b) Distortion (c) Displacement (d) None

Description : Shear stress causes (a) Deformation (b) Distortion (c) Displacement (d) None

Last Answer : (b) Distortion

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Description : Which one of the following statements is not correct with respect to PSC beams? (a) Loss due to shrinkage is proportional to water-cement ratio used in concrete (b) Loss due to creep is ... to the modulus of elasticity of concrete (d) Loss due to friction occurs in post tensioned concrete members

Last Answer : (c) Loss due to elastic deformation is directly proportionally to the modulus of elasticity of concrete

What is elastic limit ?

Description : What is elastic limit ?

Last Answer : Substances that have this property are called elastic substances . However, the ball has a limit beyond which the object does not return to its previous shape when applied more force. This limit is called elastic limit .

What is elastic limit ?

Last Answer : The maximum amount of force applied to an object that makes the object fully elastic is called elastic limit.

Cast iron has (A) Very high tensile strength (B) High ductility (C) High malleability (D) Elastic limit close to ultimate breaking strength

Description : Cast iron has (A) Very high tensile strength (B) High ductility (C) High malleability (D) Elastic limit close to ultimate breaking strength

Last Answer : (D) Elastic limit close to ultimate breaking strength

Cast iron has (A) High ductility (B) High malleability (C) Very high tensile strength (D) Its elastic limit very close to ultimate breaking strength

Description : Cast iron has (A) High ductility (B) High malleability (C) Very high tensile strength (D) Its elastic limit very close to ultimate breaking strength

Last Answer : (D) Its elastic limit very close to ultimate breaking strength

A material no longer behaves elastically beyond (A) Plastic limit (B) Limiting load (C) Elastic limit (D) Breaking load

Description : A material no longer behaves elastically beyond (A) Plastic limit (B) Limiting load (C) Elastic limit (D) Breaking load

Last Answer : (C) Elastic limit

Failure of a material is termed as fatigue failure, if it fails below the yield point. The resistance to fatigue failure of a material is measured by the (A) Ultimate tensile strength (U.T.S.) (B) Endurance limit (C) Elastic limit (D) None of these

Description : Failure of a material is termed as fatigue failure, if it fails below the yield point. The resistance to fatigue failure of a material is measured by the (A) Ultimate tensile strength (U.T.S.) (B) Endurance limit (C) Elastic limit (D) None of these

Last Answer : (B) Endurance limit

Cast iron is having very high (A) Proximity between its elastic limit and ultimate breaking strength (B) Ductility (C) Tensile strength (D) All (A), (B) and (C)

Description : Cast iron is having very high (A) Proximity between its elastic limit and ultimate breaking strength (B) Ductility (C) Tensile strength (D) All (A), (B) and (C)

Last Answer : (A) Proximity between its elastic limit and ultimate breaking strength

Lead pipe is (A) Especially resistant to solutions containing H2SO4 (B) Usually joined by burning (e.g. by melting to adjacent pieces with a torch) (C) Having very low elastic limit resulting in permanent deformation from either mechanical or thermal strain (D) All (A), (B) and (C)

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Last Answer : (D) All (A), (B) and (C

At ‘yield point’ of a copper wire A. the load hasn't exceeded the elastic limit yet; so, Hooke's law applies B. the load has already exceeded the elastic limit and the material has become plastic C. even the plastic stage has passed and the wire has snapped already D. Like Brass and Bronze, Copper has no yield poin

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Last Answer : the load has already exceeded the elastic limit and the material has become plastic

The resistance to fatigue of a material is measured by (a) elastic limit (b) Young's modulus (c) ultimate tensile strength (d) endurance limit

Description : The resistance to fatigue of a material is measured by (a) elastic limit (b) Young's modulus (c) ultimate tensile strength (d) endurance limit

Last Answer : (d) endurance limit