WorksheetsSTRESS & STRAIN
Total questions: 15
Worksheet time: 9mins
Hooke’s Law is valid within:
Elastic limit
Plastic range
Yield point
Breaking point
Which of the following is the correct unit of stress?
N/m
N
N/m²
m²/N
What type of stress is developed when a material is subjected to equal and opposite forces acting away from it?
Shear Stress
Compressive Stress
Bending Stress
Tensile Stress
A bar of 2 m length elongates by 1 mm under an axial load. What is the strain in the bar?
0.005
0.0005
0.05
0.00005
What is the modulus of elasticity also known as?
Shear Modulus
Young's Modulus
Bulk Modulus
Poisson’s Ratio
If a material returns to its original shape after removing the load, the behavior is called:
(a)
Which of the following materials is most elastic?
Copper
Steel
Rubber
Brass
If a piece of material neither expands nor contracts in volume when subjected to stresses, then the Poisson’s ratio must be
Zero
0.25
0.35
0.5
Assertion : Stress and modulus of elasticity have the same dimensions. Reason: The dimensional formula of Strain is [L].
Both A and R are true and R is the correct explanation of A
Both A and R are true but R is not the correct explanation of A
A is true but R is false
A is false but R is true
Which of the following material has Poisson's ratio greater than
Steel
Cork
Copper
None
Poisson ratio depends on
Lateral strain
Stress
Material of specimen
None
Which of the following tests is NOT commonly used to measure the hardness of a material?
Brinell Test
Vickers Test
Charpy Test
Rockwell Test
Which of the following best describes the property of ductility in materials?
Ability of a material to resist penetration
Ability of a material to sustain plastic deformation before fracture
Ability of a material to regain its original shape after deformation
Ability of a material to conduct electricity
What mechanical property allows a material to be drawn into thin wires without breaking?
(a)
Which of the following is a correct condition for a material to exhibit ductility?
It must be under compressive load
It should return to original shape after load removal
It must undergo plastic deformation under tensile force
It should resist elastic deformation
