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 : 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 : For a homogeneous & isotropic body under hydrostatic pressure, which theory of elastic failure fails (a) Firstly Maximum Principal Theory (b) Secondly Maximum Principal strain Theory (c) Thirdly Maximum Principal Energy Theory (d) None
Last Answer : (c) Thirdly Maximum Principal Energy Theory
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 : Forge welding involves heating of parts to elastic stage and joint is prepared by impact force. a) Yes b) No, it is done up to plastic stage c) Heating is done up to boiling point d) None of the listed
Last Answer : b) No, it is done up to plastic stage
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 : Which of the following are true about plasticity? a) Permanent Deformation b) Ability to retain deformation under load or after removal of load c) Plastic deformation is greater than elastic deformation d) All of the mentioned
Last Answer : d) All of the mentioned
Description : A spring is defined as a(an) ___ machine element. (A) plastic (B) elastic (C) special purpose (D) none of the above
Last Answer : (B) elastic
Description : The spring operates (A) Within plastic limit (B) Within elastic limit (C) Within elasto-plastic limit (D) Within visco-elastic limit
Last Answer : (B) Within elastic limit
Description : In forging, metal is in which of the following stage? a) Elastic b) Plastic c) Can be in any stage d) Rigid
Last Answer : b) Plastic
Description : A ductile material may not meet a failure if it has been tested for the theories of failure (a) Firstly Maximum Shear Stress Theory (b) Secondly Maximum Shear Strain Energy Theory (c) Both (a) & (b) (d) None
Last Answer : (c) Both (a) & (b)
Description : Why do we determine principal stresses? a. Failure is due to simple stress or strain b. Failure is due to complex stress or strain c. Both (a) & (b) d. None
Last Answer : a. Failure is due to simple stress or strain
Description : The principal strain due to σ1(tensile) and σ2 (Compressive ) stress is (a) Firstly (b)Secondly (c)Thirdly (d) None
Last Answer : (b)Secondly
Description : Factor of safety for fatigue loading is the ratio of (a) elastic limit to the working stress (b) Young's modulus to the ultimate tensile strength (c) endurance limit to the working stress (d) elastic limit to the yield point
Last Answer : (c) endurance limit to the working stress
Description : For a homogeneous & isotropic body under hydrostatic pressure, which theory of elastic failure does not fail (a) Firstly Maximum Principal Theory (b) Secondly Maximum Shear Stress Theory (c) Thirdly Maximum Principal Energy Theory (d) None
Last Answer : (a) Firstly Maximum Principal Theory
Description : Theories of elastic failure while dealing with brittle materials consider the failure criterion as (a) Ultimate stress (b) Yield stress (c) Both ultimate and yield stress (d) None
Last Answer : (a) Ultimate stress
Description : Theories of elastic failure while dealing with ductile materials consider the failure criterion as (a) Ultimate stress (b) Yield stress (c) Both ultimate and yield stress (d) None
Last Answer : (b) Yield stress
Description : The tensile stress in the rim of the flywheel is given by, Where, ρ is mass density and v is linear velocity at the mean radius of the rim. (A) ρv2/2 (B) πρv2 (C) ρv2 (D) 2 ρv2
Last Answer : (C) ρv2
Description : Maximum shear stress theory is used for (A) Cast iron shafts (B) Steel shafts (C) Flexible shafts (D) Plastic shafts
Last Answer : (B) Steel shafts
Description : Maximum principle stress theory is used for (A) Cast iron shafts (B) Steel shafts (C) Aluminum shafts (D) Plastic shafts
Last Answer : (A) Cast iron shafts
Description : Creep coefficient is the ratio of [ A ] Ultimate Creep strain to elastic strain [ B ] Elastic strain to ultimate Creep strain [ C ] Elastic strain to plastic strain [ D ] Plastic strain to elastic strain
Last Answer : [ A ] Ultimate Creep strain to elastic strain
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 : 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 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 : 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
Last Answer : (C) Hooke's law
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 : 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 : What is is the different between a linear scale and a nonlinear scale?
Last Answer : Feel Free to Answer
Description : Is the function y8x linear or nonlinear?
Last Answer : linear
Description : Is y-83 plus x7 linear or nonlinear?
Description : In a triple conversion superheterodyne receiver, diode mixer stages are operated A. In the linear region B. In the nonlinear region C. As class A amplifiers D. As class B amplifiers
Last Answer : B. In the nonlinear region
Description : Neural Networks are complex ______________ with many parameters. a) Linear Functions b) Nonlinear Functions c) Discrete Functions d) Exponential Functions
Last Answer : a) Linear Functions
Description : Neural Networks are complex ______________with many parameters. a) Linear Functions b) Nonlinear Functions c) Discrete Functions d) Exponential Functions
Last Answer : b) Nonlinear Functions
Description : We can divide coding schemes intotwobroad categories: ________ and______coding. A) block; linear B) linear; nonlinear C) block; convolution D) none of the above
Last Answer : block; convolution
Description : The electric flux density and electric field intensity have which of the following relation? a) Linear b) Nonlinear c) Inversely linear d) Inversely nonlinear
Last Answer : a) Linear
Description : Neural Networks are complex ———————–with many parameters. a) Linear Functions b) Nonlinear Functions c) Discrete Functions d) Exponential Functions e) Power Functions
Description : Compare linear and nonlinear wave shaping circuits.
Last Answer : Sr. No. Linear Wave shaping Circuit Non Linear Wave shaping Circuits 1 The circuit which makes use of only linear circuit elements is known as linear wave shaping circuits. The circuit which ... for the circuits 4 E.g. Integrator, Differentiator E.g. Clipper, Clamper
Description : For a body moving with non-uniform velocity and uniform acceleration (1) Displacement – Time graph is linear (2) Displacement – Time graph is non-linear (3) Velocity – Time graph is nonlinear (4) Velocity – Time graph is linear
Last Answer : Displacement – Time graph is non-linear
Description : The relationship between the alternating stress and mean stress is given by the following equation: σ a =σ e [1-(σ m /σ u )x], where σ e is the fatigue limit for completely reversed loading. The value of x for Gerber line is equal to _________ a) 1 b) 2 c) 0.5 d) -1
Last Answer : b) 2
Description : The relationship between the alternating stress and mean stress is given by the following equation: σ a = σ e [1-(σ m /σ u ) x ]. The value of x for Goodman line is equal to _________ a) 1 b) 2 c) 0.5 d) -1
Last Answer : a) 1
Description : Which of the following is most elastic? (1) Rubber (2) Wet clay (3) Steel (4) Plastic
Last Answer : (3) Steel Explanation: In physics, elasticity is a physical property of materials which return to their original shape after the stress that caused their deformation is no longer applied. ... are characterized by a linear relationship between stress and strain (the relative amount of deformation).
Description : Vulcanisation of raw rubber makes it (A) Soft (B) Less elastic (C) Plastic (D) Tacky
Last Answer : (B) Less elastic
Description : Which of the following is the most elastic material? (A) Plastic (B) Glass (C) Steel (D) Rubber
Last Answer : (C) Steel
Last Answer : Steel