MOM Lab Quiz

Which of the following materials has the lowest elastic modulus?

• Titanium

• Brass

• Plastic

• Glass

Which of the following statements best describes elastic deformation?

• Deformation that is permanent and irreversible.

• Deformation that occurs only under tensile stress.

• Deformation that is temporary and reversible upon load removal.

• Deformation that occurs only at high temperatures.

Which of the following is primarily responsible for a beam's ability to withstand load?

• Bending forces

• Shear forces

• Torsional forces

• Compression forces

In buildings, why should floor beams not deflect excessively?

• To increase flexibility

• To avoid undesirable psychological effects on occupants

• To induce vibrations

• To maintain dimensional accuracy

Why are accurate values for beam deflections important in practical cases?

• To prevent misalignment

• To increase flexibility

• To induce vibrations

• To decrease rigidity

Which of the following statements best describes plastic deformation?

• Deformation that occurs only under compressive stress.

• Deformation that is temporary and reversible.

• Deformation that occurs only in brittle materials.

• Deformation that is permanent and irreversible after the load is removed.

Which material typically has the highest elastic modulus?

• Aluminium

• Steel

• Concrete

• Wood

From the graph, which support condition has the highest critical buckling load according to the graph?

• Fixed-Free

• Pinned-Fixed

• Pinned-Pinned

• Fixed-Fixed

What instrument is used to observe the deflection of the beam at a particular section in the testing procedure?

• Screwdriver.

• Dial gauge.

• Hammer.

• Level.

According to the graph, which supports condition shows the most rapid increase in deflection after reaching the critical load?

• Fixed-Fixed

• Pinned-Fixed

• Pinned-Pinned

• Fixed-Free