The law which states, "Within elastic limits strain produced is proportional to the stress producing
it", is known as
(A) Bernoulli's law
(B) Stress law
(C) Hooke's law
(D) Poisson's law
Description : 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
Last Answer : (A) Applies to elastic deformation
Description : The statement : stress is proportional to strain, i.e. the Hooke’s law holds good upto (a) Elastic Limit (b) Proportional Limit (c) Plastic Limit (d) Yield point
Last Answer : (b) Proportional Limit
Description : Hooke's law states that stress and strain are (A) Directly proportional (B) Inversely proportional (C) Curvilinearly related (D) None of these
Last Answer : (A) Directly proportional
Description : All materials obey Hooke's law within elastic limit. When elastic limit is reached, the tensile strain (A) Increases very quickly (B) Decreases very quickly (C) Increases in proportion to stress (D) Decreases in proportion to stress
Last Answer : (A) Increases very quickly
Description : The ratio of lateral strain to axial strain of a homogeneous material, is known (A) Yield ratio (B) Hooke's ratio (C) Poisson's ratio (D) Plastic ratio
Last Answer : (C) Poisson's ratio
Description : What is Hooke's Law? (1) Stress is inversely proportional to strain. (2) Stress is directly proportional to strain. (3) Stress and strain are dependent on each other. (4) Stress and strain are independent of each other.
Last Answer : (2) Stress is directly proportional to strain. Explanation: Hooke's law is a principle of physics that states that the force (F) needed to extend or compress a spring by some distance X scales linearly with respect to that distance.
Description : What is Hooke’s Law? (1) Stress is inversely proportional to strain. (2) Stress is directly proportional to strain. (3) Stress and strain are dependent on each other. (4) Stress and strain are independent of each other.
Last Answer : (2) Stress is directly proportional to strain. Explanation: Hooke’s law is a principle of physics that states that the force (F) needed to extend or compress a spring by some distance X scales linearly with respect to that distance.
Description : cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is (A) 0 (B) 0.33 (C) 0.44 (D) 0.25
Last Answer : Option C
Description : Hooke's law states that A. the extension is proportional to the load when the elastic limit is not exceeded B. the extension is inversely proportional to the load when the elastic limit is not ... is independent of the load when the elastic limit is not exceeded D. load is dependent on extension
Last Answer : the extension is proportional to the load when the elastic limit is not exceeded
Description : Every material obeys the Hooke's law within its (A) Elastic limit (B) Plastic point (C) Limit of proportionality (D) None of these
Last Answer : (C) Limit of proportionality
Description : State Hooke’s law. Draw a labelled graph of tensile stress against tensile strain for a metal wire
Last Answer : State Hooke's law. Draw a labelled graph of tensile stress against tensile strain for a metal wire up ... the region in which Hooke's law is obeyed.
Description : Pick out the correct statement. (A) Materials exhibiting high elasticity obey Hooke's law (B) The elastic behaviour of rubber under compression is the same as its behaviour under tension (C) ... to its plastic deformation (D) The stress required to cause plastic flow in polycrystalline material is
Last Answer : Option B
Description : Every material obeys the Hooke’s law within (a) Elastic limit (b) Plastic limit (c) Limit of proportionality (d) None of these
Last Answer : c) Limit of proportionality
Description : Hooke’s law is applicable within (a)Elastic limit (b)Plastic limit (c)Fracture point (d) Ultimate strength
Last Answer : (a)Elastic limit
Description : The spring balance works on the principle of - (1) Boyle's Law (2) Hooke's Law (3) Bernoulli's principle (4) Pascal's Law
Last Answer : (2) Hooke's Law Explanation: A spring scale or spring balance or Newton meter is a type of weighing scale. It consists of spring fixed at one end with a hook to attach an object at the ... force needed to extend a spring is proportional to the distance that spring is extended from its rest position.
Description : The spring balance works on the principle of __________ . (1) Boyle’s Law (2) Hooke’s Law (3) Bernoulli’s principle (4) Pascal’s Law
Last Answer : Hooke’s Law
Description : At yield point of a test piece, the material (A) Obeys Hooke's law (B) Behaves in an elastic manner (C) Regains its original shape on removal of the load (D) Undergoes plastic deformation
Last Answer : (D) Undergoes plastic deformation
Description : Muller Breslau's principle for obtaining influence lines is applicable to (i) Trusses (ii) Statically determinate beams and frames (iii) Statically indeterminate structures, the material of which is elastic and follows Hooke's law (iv ... B) (i), (ii) and (iv) (C) (i) and (ii) (D) Only (i)
Last Answer : (A) (i), (ii) and (iii)
Description : According to Newton's law of viscosity, the shear stress on a layer of a fluid is __________ to the rate of shear strain. (A) Equal to (B) Directly proportional (C) Inversely proportional (D) None of these
Last Answer : Answer: Option B
Description : Pick up the correct statement from the following: (A) The distance of the eccentric axial load from the C.G. beyond which tension develops, is known as kern distance (B) In visco ... (C) An orthotropic material has different properties in three mutually perpendicular directions (D) All the above
Last Answer : (D) All the above
Description : An open-ended cylinder of radius and thickness is subjected to internal pressure . The Young's modulus for the material is and Poisson's ratio is . The longitudinal strain is (A) Zero (B) pr/TE (C) pr/2TE (D) None of these
Last Answer : (A) Zero
Description : Modulus of elasticity is defined as: A. The stress at the proportional limit B. The stress-strain ratio within the proportional limit
Last Answer : B. The stress-strain ratio within the proportional limit
Description : Proportional to the distortion of the stress within the elastic limit. Whose formula is this?
Last Answer : Proportion of stress distortion within the elastic limit. This is Robert Hooke's formula.
Description : In a singly reinforced beam (A) Compression is borne entirely by concrete (B) Steel possesses initial stresses when embedded in concrete (C) Plane sections transverse to the centre line ... Elastic moduli for concrete and steel have different values within the limits of deformation of the beam
Last Answer : Answer: Option C
Description : 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 ... stage has passed and the wire has snapped already D. Like Brass and Bronze, Copper has no yield poin
Last Answer : the load has already exceeded the elastic limit and the material has become plastic
Description : State Hooke’s Law of elasticity. Define Elastic limit.
Last Answer : Hooke’s Law:- Within elastic limit, stress is directly proportional to strain. Elastic limit: -It is the maximum value of the stress upto which the body shows elasticity.
Description : The ratio of shear stress and shear strain of an elastic material, is (A) Modulus of Rigidity (B) Shear Modulus (C) Modulus of Elasticity (D) Both (a) and (b)
Last Answer : (D) Both (a) and (b)
Description : As the elastic limit reaches, tensile strain (A) Increases more rapidly (B) Decreases more rapidly (C) Increases in proportion to the stress (D) Decreases in proportion to the stress
Last Answer : (A) Increases more rapidly
Description : If extension in spring is proportional to load applied, then material obeys A. Newton's law B. gravitational law C. Charles's law D. Hooke's law
Last Answer : Hooke's law
Description : A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is (A) -0.8 (B) 0.8 (C) +0.08 (D) -0.24
Last Answer : (D) -0.24
Description : The ratio of lateral strain to linear strain is called (a) Modulus of Elasticity (b) Modulus of Rigidity (c) Bulk Modulus (d) Poisson’s Ratio
Last Answer : (d) Poisson’s Ratio
Description : Poisson’s ratio is a. Lateral strain / Longitudinal strain b. Shear strain / Lateral strain c. Longitudinal strain / Lateral strain d. Lateral strain / Volumetric strain
Last Answer : a. Lateral strain / Longitudinal strain
Description : Define volumetric strain. Also give the relation between lateral strain to and Poisson’s ratio.
Last Answer : Volumetric strain: Volumetric strain is defined as the ratio of change in volume to original volume.
Description : If Poisson's ratio of a resistance wire strain gauge is 1.8, then neglecting piezo-resistive effects, its Gauge factor is : (A) 2.8 (B) 2.6 (C) 4.6 (D) 3.6
Last Answer : If Poisson's ratio of a resistance wire strain gauge is 1.8, then neglecting piezo-resistive effects, its Gauge factor is : 4.6
Description : Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)? (A) E = 2G (1 + v) (B) E = G (1 + v) (C) E = G (1 + v)/2 (D) E = 2G (1 + 2v)
Last Answer : (A) E = 2G (1 + v)
Description : According to Bernoulli's equation for steady ideal fluid flow (A) Principle of conservation of mass holds (B) Velocity and pressure are inversely proportional (C) Total energy is constant throughout (D) The energy is constant along a streamline but may vary across streamlines
Last Answer : Answer: Option D
Description : Draw stress-strain diagram for mild-steel rod and show different limits on it.
Last Answer : Where, A = Limit of proportionality B = Elastic limit C = Upper yield point D = Lower yield point E = Ultimate load point F = Breaking point
Description : Metal Steel is more elastic than rubber because _____. A. Its density is high B. It is a metal C. Ratio of stress to strain is more D. Ratio of stress to strain is less
Last Answer : ANSWER: C
Description : Steel is more elastic than rubber because _____. A. Its density is high B. It is a metal C. Ratio of stress to strain is more D. Ratio of stress to strain is less
Description : What is the maximum value of deforming force upto which a material shows elastic property and above which the material loses it? (1) Elasticity (2) Strain (3) Elastic Limit (4) Stress
Last Answer : (3) Elastic Limit Explanation: The Maximum Extent to which a solid may be stretched without permanent alteration of size or shape.
Description : What is the maximum value of deforming force up to which a material shows elastic property and above which the material loses it? (1) Elasticity (2) Strain (3) Elastic Limit (4) Stress
Last Answer : (4) Elastic Limit Explanation: The Maximum Extent to which a solid may be stretched without permanent alteration of size or shape.
Description : An elastic behaviour of materials is expressed in terms of (A) Hysteresis loop area (B) Stress-strain curve (C) Relaxation time
Last Answer : (C) Relaxation time
Description : Under complex loading, if elastic limit reaches in tension, then failure occurs due to (a) Firstly Maximum principal strain theory (b) Secondly Maximum principal theory of strain energy (c) Thirdly Maximum Principal stress theory (d) None
Last Answer : (c) Thirdly Maximum Principal stress theory
Description : Under complex loading, if elastic limit reaches in tension, then failure occurs due to (a) Firstly Maximum principal strain theory (b) Secondly Maximum principal theory of strain energy (c) Thirdly Maximum shear stress theory (d) None
Last Answer : (d) None
Description : The elastic stress strain behavior of rubber is A. Linear B. Nonlinear C. Plastic D. No fixed relationship
Last Answer : B. Nonlinear
Description : Total strain energy theory for the failure of a material at elastic limit, is known (A) Guest's or Trecas' theory (B) St. Venant's theory (C) Rankine's theory (D) Haig's theory
Last Answer : (D) Haig's theory
Description : Maximum strain theory for the failure of a material at the elastic limit, is known as (A) Guest's or Trecas' theory (B) St. Venant's theory (C) Rankine's theory (D) Haig's theory
Last Answer : (B) St. Venant's theory
Description : Stiffness of material is measured by, A. Proportional unit B. Modules of elasticity C. Stress/ strain
Last Answer : B. Modules of elasticity
Description : In a simple bending theory, one of the assumption is that the plane sections before bending remain plane after bending. This assumption means that a. stress is uniform throughout the beam b. ... the distance from the neutral axis d. strain is proportional to the distance from the neutral axis
Last Answer : d. strain is proportional to the distance from the neutral axis