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

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
by

1 Answer

Answer :

d) All of the mentioned
by

Related questions

Which of the following facts are true for resilience? a) Ability of material to absorb energy when deformed elastically b) Ability to retain deformation under the application of load or after removal of load c) Ability of material to absorb energy when deformed plastically d) None of the mentioned

Description : Which of the following facts are true for resilience? a) Ability of material to absorb energy when deformed elastically b) Ability to retain deformation under the application of load or after removal ... c) Ability of material to absorb energy when deformed plastically d) None of the mentioned

Last Answer : a) Ability of material to absorb energy when deformed elastically

The permanent mode of deformation of a material known as _____________ a) Elasticity b) Plasticity c) Slip deformation d) Twinning deformation

Description : The permanent mode of deformation of a material known as _____________ a) Elasticity b) Plasticity c) Slip deformation d) Twinning deformation

Last Answer : b) Plasticity

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

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 

A total permanent deformation of 0.0001 of the ball diameter is taken for considering the static load capacity of the sh (a) True (b) False

Description : A total permanent deformation of 0.0001 of the ball diameter is taken for considering the static load capacity of the sh (a) True (b) False

Last Answer : (a) True

A total permanent deformation of 0.0001 of the ball diameter is taken for considering static load capacity of the shaft. a) True b) False

Description : A total permanent deformation of 0.0001 of the ball diameter is taken for considering static load capacity of the shaft. a) True b) False

Last Answer : a) True

The ability of a material to resist plastic deformation known as _____________ a) Tensile strength b) Yield strength c) Modulus of elasticity d) Impact strength

Description : The ability of a material to resist plastic deformation known as _____________ a) Tensile strength b) Yield strength c) Modulus of elasticity d) Impact strength

Last Answer : b) Yield strength

A material is able to retain the deformation permanently by virtue of its (A) Elasticity (B) Plasticity (C) Ductility (D) Malleability

Description : A material is able to retain the deformation permanently by virtue of its (A) Elasticity (B) Plasticity (C) Ductility (D) Malleability

Last Answer : (B) Plasticity

For elasto-hydrodynamic lubrication (A) There should be relative motion between the surfaces of the journal and the bearing and wedge shaped clearance space (B) There should be external source like pump to supply lubricant under pressure (C) There should be elastic deformation of the parts in contact (D) There should be metal to metal contact

Description : For elasto-hydrodynamic lubrication (A) There should be relative motion between the surfaces of the journal and the bearing and wedge shaped clearance space (B) There should be external source like ... be elastic deformation of the parts in contact (D) There should be metal to metal contact

Last Answer : (C) There should be elastic deformation of the parts in contact

For hydrostatic lubrication (A) There should be relative motion between the surfaces of the journal and the bearing and wedge shaped clearance space (B) There should be external source like pump to supply lubricant under pressure (C) There should be elastic deformation of the parts in contact (D) There should be metal to metal contact

Description : For hydrostatic lubrication (A) There should be relative motion between the surfaces of the journal and the bearing and wedge shaped clearance space (B) There should be external source like pump to ... be elastic deformation of the parts in contact (D) There should be metal to metal contact

Last Answer : (B) There should be external source like pump to supply lubricant under pressure

For hydrodynamic lubrication (A) There should be relative motion between the surfaces of the journal and the bearing and wedge shaped clearance space (B) There should be external source like pump to supply lubricant under pressure (C) There should be elastic deformation of the parts in contact (D) There should be metal to metal contact

Description : For hydrodynamic lubrication (A) There should be relative motion between the surfaces of the journal and the bearing and wedge shaped clearance space (B) There should be external source like pump to ... be elastic deformation of the parts in contact (D) There should be metal to metal contact

Last Answer : (A) There should be relative motion between the surfaces of the journal and the bearing and wedge shaped clearance space

The tendency of a deformed solid to regain its actual proportions instantly upon unloading known as ______________ a) Perfectly elastic b) Delayed elasticity c) Inelastic effect d) Plasticity

Description : The tendency of a deformed solid to regain its actual proportions instantly upon unloading known as ______________ a) Perfectly elastic b) Delayed elasticity c) Inelastic effect d) Plasticity

Last Answer : a) Perfectly elastic

A member which does not regain its original shape after removed of load producing deformation is said (A) Plastic (B) Elastic (C) Rigid (D) None of these

Description : A member which does not regain its original shape after removed of load producing deformation is said (A) Plastic (B) Elastic (C) Rigid (D) None of these

Last Answer : (A) Plastic

There is sufficient plastic deformation prior to fatigue failure, which gives a warning well in advance. a) True b) False

Description : There is sufficient plastic deformation prior to fatigue failure, which gives a warning well in advance. a) True b) False

Last Answer : b) False

Which of the following help in accomplishing the locking? a) Creating supplementary friction b) Using special locking devices like split pins c) By plastic deformation d) All of the listed

Description : Which of the following help in accomplishing the locking? a) Creating supplementary friction b) Using special locking devices like split pins c) By plastic deformation d) All of the listed

Last Answer : d) All of the listed

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) The damping capacity of a material is due to its plastic deformation (D) The stress required to cause plastic flow in polycrystalline material is

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

When stress is increased beyond elastic limit and material is permanently changed this property is a) Permanent stress b) Elasticity c) Yield strength d) Plasticity

Description : When stress is increased beyond elastic limit and material is permanently changed this property is a) Permanent stress b) Elasticity c) Yield strength d) Plasticity

Last Answer : d) Plasticity

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)

Description : 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)

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

The property of soil which allows it to be deformed rapidly, without rupture, without elastic rebound and without volume change is known as a) Porosity b) Plasticity* c) Stiffness d) Plastic limit

Description : The property of soil which allows it to be deformed rapidly, without rupture, without elastic rebound and without volume change is known as a) Porosity b) Plasticity* c) Stiffness d) Plastic limit

Last Answer : b) Plasticity*

A spring is defined as a(an) ___ machine element. (A) plastic (B) elastic (C) special purpose (D) none of the above

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

The spring operates (A) Within plastic limit (B) Within elastic limit (C) Within elasto-plastic limit (D) Within visco-elastic limit

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

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

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

The elastic stress strain behavior of rubber is A. Linear B. Nonlinear C. Plastic D. No fixed relationship

Description : The elastic stress strain behavior of rubber is A. Linear B. Nonlinear C. Plastic D. No fixed relationship

Last Answer : B. Nonlinear

In forging, metal is in which of the following stage? a) Elastic b) Plastic c) Can be in any stage d) Rigid

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

Substances that elongate considerably and undergo plastic deformation before they break are known as A. brittle substances B. breakable substances C. ductile substances D. elastic substances

Description : Substances that elongate considerably and undergo plastic deformation before they break are known as A. brittle substances B. breakable substances C. ductile substances D. elastic substances

Last Answer : ductile substances

Hot & cold working of material causes its __________ deformation. (A) Visco-elastic (B) Isotropic (C) Elastic (D) Plastic

Description : Hot & cold working of material causes its __________ deformation. (A) Visco-elastic (B) Isotropic (C) Elastic (D) Plastic

Last Answer : (D) Plastic

The material in which large deformation is possible before absolute failure by rupture takes place, is known as (a) Ductile (b) Plastic (c) Brittle (d) Elastic

Description : The material in which large deformation is possible before absolute failure by rupture takes place, is known as (a) Ductile (b) Plastic (c) Brittle (d) Elastic

Last Answer : Ductile

What Properties Are Needed To Be Considered For Application Calling For Following Requirements? I) Rigidity. Ii) Strength Of No Plastic Deformation Under Static Load. Iii) Strength To Withstand Overload Without Fracture.

Description : What Properties Are Needed To Be Considered For Application Calling For Following Requirements? I) Rigidity. Ii) Strength Of No Plastic Deformation Under Static Load. Iii) Strength To Withstand Overload Without Fracture.

Last Answer : i) Reliability – elastic modulus and yield strength. ii) Strength (for no plastic deformation under static loading) – yield point. iii) Strength (overload) – Toughness and impact resistance. iv) Wear resistance – Hardness. v) Reliability and safety – Endurance limit and yield.

Ability of a material to absorb energy in deformation in the plastic range is characterised as its (A) Ductility (B) Toughness (C) Creep (D) Resilience

Description : Ability of a material to absorb energy in deformation in the plastic range is characterised as its (A) Ductility (B) Toughness (C) Creep (D) Resilience

Last Answer : (B) Toughness

Which of the following reduces the stress concentration? a) Use of multiple notches b) Drilling additional holes c) Removal of undesired material d) Each of the mentioned

Description : Which of the following reduces the stress concentration? a) Use of multiple notches b) Drilling additional holes c) Removal of undesired material d) Each of the mentioned

Last Answer : d) Each of the mentioned

Which of the following is measure of stiffness? a) Modulus of elasticity b) Modulus of plasticity c) Resilience d) Toughness

Description : Which of the following is measure of stiffness? a) Modulus of elasticity b) Modulus of plasticity c) Resilience d) Toughness

Last Answer : a) Modulus of elasticity

Which of the following property is essential for spring materials? (A) Stiffness (B) Ductility (C) Resilience (D) Plasticity

Description : Which of the following property is essential for spring materials? (A) Stiffness (B) Ductility (C) Resilience (D) Plasticity

Last Answer : (C) Resilience

The static load carrying capacity of fine threads is greater than that of coarse threads. a) True b) False

Description : The static load carrying capacity of fine threads is greater than that of coarse threads. a) True b) False

Last Answer : b) False

When the plastic limit of a soil is greater than the liquid limit, then the plasticity index is reported as (A) Negative (B) Zero (C) Non-plastic (NP) (D) 1

Description : When the plastic limit of a soil is greater than the liquid limit, then the plasticity index is reported as (A) Negative (B) Zero (C) Non-plastic (NP) (D) 1

Last Answer : (B) Zero

Deformation that occurs due to stress over a period of time is known as ____________ a) Wear resistance b) Fatigue c) Creep d) Fracture

Description : Deformation that occurs due to stress over a period of time is known as ____________ a) Wear resistance b) Fatigue c) Creep d) Fracture

Last Answer : c) Creep

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

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

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

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

Under complex loading, theories of elastic failure establishes the (a) Margin of failure (b) Margin of safety (c) Both (a) & (b) (d) None

Description : Under complex loading, theories of elastic failure establishes the (a) Margin of failure (b) Margin of safety (c) Both (a) & (b) (d) None

Last Answer : (b) Margin of safety

Under complex loading, theories of elastic failures ensure (a) Stability (b) Instability (c) Both stability and instability (d) None

Description : Under complex loading, theories of elastic failures ensure (a) Stability (b) Instability (c) Both stability and instability (d) None

Last Answer : (a) Stability

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

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

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

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

Self-locking takes place when a) Coefficient of friction is equal to or greater than the tangent of the helix angle b) Coefficient of friction is lesser than or equal to the tangent of the helix angle c) Coefficient of friction is equal to or greater than the tangent of the helix angle d) None of the mentioned

Description : Self-locking takes place when a) Coefficient of friction is equal to or greater than the tangent of the helix angle b) Coefficient of friction is lesser than or equal to the tangent of the helix ... friction is equal to or greater than the tangent of the helix angle d) None of the mentioned

Last Answer : c) Coefficient of friction is equal to or greater than the tangent of the helix angle

Is it true Elastic deformation occurs when a material deforms as stress is applied?

Description : Is it true Elastic deformation occurs when a material deforms as stress is applied?

Last Answer : Yes

The maximum stress that a body can tolerate is called: a) UTS b) Permanent stress c) Elastic strength d) Plastic stress

Description : The maximum stress that a body can tolerate is called: a) UTS b) Permanent stress c) Elastic strength d) Plastic stress

Last Answer : a) UTS

Flywheel absorbs energy during those periods of crank rotation when 1. The twisting moment is greater than the resisting moment 2. The twisting moment is equal to the resisting moment 3. The twisting moment is less than resisting moment 4. The load on engine falls

Description : Flywheel absorbs energy during those periods of crank rotation when 1. The twisting moment is greater than the resisting moment 2. The twisting moment is equal to the resisting moment 3. The twisting moment is less than resisting moment 4. The load on engine falls

Last Answer : 1. The twisting moment is greater than the resisting moment

Tapered roller bearings can take (a) radial load only (b) axial load only (c) both radial and axial loads and the ratio of these being greater than unity (d) both radial and axial loads and the ratio of these being less than unity

Description : Tapered roller bearings can take (a) radial load only (b) axial load only (c) both radial and axial loads and the ratio of these being greater than unity (d) both radial and axial loads and the ratio of these being less than unity

Last Answer : (c) both radial and axial loads and the ratio of these being greater than unity

The connecting rod bolts are tightened up with the initial tension greater than external load so that (A) Failure of bolt will be static (B) The resultant load on bolt will not be affected by external cyclic load (C) The bolt will not fail by fatigue although the external load is fluctuating (D) All the three

Description : The connecting rod bolts are tightened up with the initial tension greater than external load so that (A) Failure of bolt will be static (B) The resultant load on bolt will not be affected by ... ) The bolt will not fail by fatigue although the external load is fluctuating (D) All the three

Last Answer : (D) All the three

If load on the engine is constant, the mean speed will be constant and ___ will not operate. a) Flywheel b) Governor c) Both flywheel and governor d) None of the mentioned

Description : If load on the engine is constant, the mean speed will be constant and ___ will not operate. a) Flywheel b) Governor c) Both flywheel and governor d) None of the mentioned

Last Answer : b) Governor

Which of the following bearings carry thrust load in one direction? (a) Spherical roller thrust bearings (b) Taper roller bearings (c) Spherical roller thrust bearings and taper roller bearings (d) none of the mentioned

Description : Which of the following bearings carry thrust load in one direction? (a) Spherical roller thrust bearings (b) Taper roller bearings (c) Spherical roller thrust bearings and taper roller bearings (d) none of the mentioned

Last Answer : (c) Spherical roller thrust bearings and taper roller bearings

The tapered roller bearings can take (a) radial load only (b) axial load only (c) both radial and axial loads (d) none of the mentioned

Description : The tapered roller bearings can take (a) radial load only (b) axial load only (c) both radial and axial loads (d) none of the mentioned

Last Answer : (c) both radial and axial loads

Belleville spring can only produce linear load deflection characteristics. a) Only linear b) Linear as well as non linear c) Non-linear d) None of the mentioned

Description : Belleville spring can only produce linear load deflection characteristics. a) Only linear b) Linear as well as non linear c) Non-linear d) None of the mentioned

Last Answer : b) Linear as well as non linear