ME or MEng Master of Engineering Structural Analysis and Materials Science

Question 1

Hooke's Law states that stress is proportional to strain within the:

Accepted Answer

Elastic limit

Answer

Plastic zone

Answer

Ultimate tensile strength

Answer

Fracture point

Question 2

The moment of inertia of a rectangular cross-section (width b, height h) about its centroidal axis is:

Accepted Answer

bh³/12

Answer

bh²/6

Answer

bh³/3

Answer

b³h/12

Question 3

In beam theory, the neutral axis is the location where:

Accepted Answer

Bending stress is zero

Answer

Shear stress is maximum

Answer

Deflection is maximum

Answer

Normal stress is maximum

Question 4

Poisson's ratio for a material is defined as:

Accepted Answer

Negative ratio of lateral strain to axial strain

Answer

Axial stress divided by axial strain

Answer

Shear stress divided by shear strain

Answer

Ratio of volume change to original volume

Question 5

Euler's critical buckling load formula for a column is P_cr =:

Accepted Answer

π²EI / (KL)²

Answer

σ_y × A

Answer

EI / L²

Answer

2EI / L

Question 6

The von Mises yield criterion predicts yielding when:

Accepted Answer

The effective (von Mises) stress equals the uniaxial yield stress

Answer

Maximum principal stress exceeds yield stress

Answer

Maximum shear stress exceeds half the yield stress

Answer

Hydrostatic pressure exceeds the bulk modulus