How do Metals Respond to External Loads - Quiz

Quiz Question

1. What is the unit of Young’s Modulus?
Pa
N-m
Pa/m2
N-m2
2. In reality elastic deformation takes time (finite rate of atomic/molecular deformation processes) – continues after initial loading, and after load release. This time dependent elastic behavior is known as?
Elasticity
An elasticity
Pre-elasticity
Post – elasticity
3. What is the unit of Poisson’s ratio?
Meters
Newton
No units
Pascal
4. _________ is a measure of the material’s resistance to localized plastic deformation.
Compressibility
Hardness
Stress
Toughness
5. The amount of elastic strain that it will take before reaching the yield point is called elastic strain recovery.
True
False
6. ________________ is the ability to absorb energy up to fracture i.e. the total area under the strain-stress curve up to fracture.
Hardness
Toughness
Tensile strength
None of the above
7. The yield and tensile strengths and modulus of elasticity ________ with increasing temperature, ductility _______ with temperature.
Decrease , Increase
Decrease, Decrease
Increase , Increase
None of the above
8. There can be two yield points on a stress vs strain curve.
True
False
9. For deformation in elastic materials, the stress strain relationship is called __________.
Young’s law
Herald’s law
Hooke’s law
Poisson’s law
10. Relationship of shear stress to shear strain, τ = G γ where G is called
Tensile modulus
Strain modulus
Shear modulus
Isotropic modulus