4.1.5 Tensile Testing

What property best describes the ability to be stretched and return to original shape?

• elasticity

• conductor

• hardness

• brittleness

Which material is hardest?

• aluminium

• copper

• steel

What does "B" represent on this graph?

• stress

• strain

• fracture point

• elasticity range

What does "G" represent on this graph?

• stress

• strain

• fracture point

• elasticity range

What does "E" represent on this graph?

• stress

• elongation

• fracture point

• elasticity range

A tensile test is what type of test?

• Destructive Test

• Constructive Test

• Compression test

• Hardness Test

How is stress calculated?

• Number of sleepless nights divided by number of cups of coffee

• Divide load (F) by the original test sample cross-sectional area (A₀).

• Elongation (δ) under load divided by the original Length (L₀)

• Stress (σ) divided by strain (ε)

Which of the following is the correct symbol to represent Strain?

• σ (Lowercase Sigma)

• ε (lowercase Epsilon)

• δ (Lowercase Delta)

• ψ (Lowercase Psi)

Which of the following is the correct symbol to represent Stress?

• σ (Lowercase Sigma)

• ε (lowercase Epsilon)

• δ (Lowercase Delta)

• ψ (Lowercase Psi)

The point at which a sudden elongation takes place while the force on the sample remains the same or decreases

• Resilience

• Yield Point

• Elastic Limit

• Proportional Limit Point