Stress strain

Stress is defined as:

• force per unit area

• force per unit length

• force per unit mass

• force per unit time

Stress-strain diagram has five stages in the material; select the correct sequence of the stages:

• Elastic region - Yielding - Strain hardening - Necking - Fracture

• Elastic region - Strain hardening - Yielding - Necking - Fracture

• Elastic region - Yielding - Necking - Strain hardening - Fracture

• Yielding - Elastic region - Necking - Strain hardening - Fracture

Ductile materials are defined as:

• materials that can be subjected to large strains before it fractures

• materials that exhibit little or no yielding before failure

• materials that cannot be subjected to large strains

• materials that are elastic

Example of brittle material:

• iron steel

• aluminium

• concrete

• copper

Which is the symbol for the Greek letter "delta"?

• ^Δ

• Ψ

• ^Ω

• Θ

Which is the symbol for the Greek letter "sigma"?

• β

• δ

• ^Ω

• Ϭ

Which is the symbol for the Greek letter "epsilon"?

• β

• δ

• ε

• τ

Tags

CCSS.8.F.A.3

Which symbol represents the "Modulus of Elasticity"?

• A

• E

• ε

• d

Which symbol represents the "cross-sectional area"?

• A

• E

• Δ

• r

Tags

CCSS.6.G.A.4

Which symbol represents the "length"?

• A

• E

• L

• r