17 Questions
What is the greatest normal stress experienced by a member under axial tensile load?
Twice the maximum shear stress
What is the relationship between stress and strain for mild steel?
Linear
For equal depth, what is the ratio of moment of inertia between a circular plate and a square plate?
Equal to 3𝜋/16
What theorem is used to determine the Moment of Inertia of an object with a complex shape?
Parallel axes theorem
What is the section modulus of a rectangular section proportional to?
Area of the section
How is the moment of resistance defined in relation to a beam?
Maximum bending moment a beam can resist
An assumption about a reinforced concrete beam is that it is made of:
Heterogeneous material
What does the Section Modulus represent in structural engineering?
Capacity of a structure to resist bending
In a cantilever carrying uniformly distributed load W and a force W acting upward at its free end, what force is applied at the free end?
$2W$
In beam diagrams, what do the areas above and below the baseline in the Shear Force Diagram (SFD) represent?
Shear forces
What type of load variation results in the maximum bending moment occurring at the midpoint of a simply supported beam?
Uniformly varying load
Where does the maximum shear stress occur in a beam of uniform strength?
A fibre in the cross section depending on configuration
In an H section beam, where does the maximum shear stress occur?
At the junction of web and flanges
How is the shear force assumed to act in a concrete beam?
Perpendicular to the longitudinal axis
What must be true about the algebraic sum of shear flow of a section in any direction?
Zero
In a beam where shear force is maximum, what is the relationship with the bending moment?
Zero
Where does the maximum deflection of a beam occur?
Zero slope location
Test your understanding of mechanics of materials with these subjective questions covering stress-strain relation, Hooke’s law, strain energy, and moment of inertia theorems. Dive into concepts such as parallel axes theorem, perpendicular axes theorem, and determining moment of inertia of a triangle.
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