On This Page

This set of Material Science Multiple Choice Questions & Answers (MCQs) focuses on Material Science Set 23

Q1 | total energy absorbed by material in elastic deformation is known as                       
  • resilience
  • stiffness
  • toughness
  • modulus of elasticity
Q2 | material obey's hooks law in region
  • plastic deformation
  • elastic deformation
  • the region of change of elasticity to plasticity
  • none of theabove
Q3 |            is constant at the yield point
  • strain
  • stress
  • temperature
  • all of the above
Q4 | the material shows atrain at cnstant stress that point is known as                   
  • yield stress
  • ultimate tensile stress
  • breaking stress
  • all of the above
Q5 | the stress-strain diagram becomes non-linear
  • after yieldpoint
  • after uts
  • before yieldpoint
  • before uts
Q6 | material shows localised deformation after
  • after yieldpoint
  • after uts
  • before yieldpoint
  • before uts
Q7 | area under stress-strain curve in elastic region is called as                      
  • resilience
  • stiffness
  • toughness
  • modulus of elasticity
Q8 | total area under stress-strain curve is calledas                       
  • toughness
  • resilience
  • malleability
  • ductility
Q9 | toughness is defined as total energy absorbed by material in                        
  • elastic region
  • plastic region
  • both of theabove
  • none of theabove
Q10 | modulus of toughness is               
  • toughness/area
  • toughness/volume
  • toughness/width
  • toughness/length
Q11 | brittle material shows toughness
  • low
  • high
  • medium
  • none of theabove
Q12 | ductile material shows toughness
  • low
  • high
  • medium
  • none of theabove
Q13 |                  is the property of a material by which it can be drawin into wires
  • ductility
  • plasticity
  • malleability
  • toughness
Q14 | resistance of a material for its deformation iscalled as                       
  • hardness
  • toughness
  • stiffness
  • all of the above
Q15 | materials like Al shows better
  • ductility
  • malleability
  • toughness
  • all of the above
Q16 | modulus of resilience is                  
  • toughness / volume
  • resilience / volume
  • energy absorbed / volume
  • stiffness / volume
Q17 | modulus of resilience is given as                  
  • 2σ2/e
  • σ2/e
  • σ2/2e
  • σ2/4e
Q18 | A tensile test specimen has crosssection
  • square
  • rectangular
  • circular
  • all of the above
Q19 | for tensile testing machine is used
  • universal testing
  • impact testing
  • fatigue testing
  • torsion testing
Q20 | engineering stress is defined as                    
  • instantaneou s load / (original cross section area)
  • applied load/ (actual cross section area)
  • applied load/ (original cross section area)
  • instantaneou s load / (actual cross section area)
Q21 | true stress is defiend as                
  • instantaneou s load / (original cross section area)
  • applied load/ (actual cross section area)
  • applied load/ (original cross section area)
  • instantaneou s load / (original cross section area)
Q22 | for measuring the elongation of specimen onUTM during tensile test is used
  • durometer
  • elastometer
  • vernier
  • extensometer
Q23 | dummy pointer on load - cell is used toindicate                       
  • yield load
  • breaking load
  • ultimate load
  • none of theabove
Q24 | after ultimate stress, stress goes on                     
  • reducing
  • increasing
  • stabilised
  • all of the above
Q25 | all the calculations in tensile test are carried out on a particular distance which is called as
  • gauge length
  • gause length
  • gase length
  • none of theabove