Strength Of Materials MCQ Questions & Answers | Mechanical Engineering

A. Change in volume to original volume

B. Change in length to original length

C. Change in cross-sectional area to original cross-sectional area

D. Any one of the above

A. Ultimate stress to working stress

B. Working stress to ultimate stress

C. Breaking stress to ultimate stress

D. Ultimate stress to breaking stress

A. Change the shape of the beam

B. Effect the saving in material

C. Equalize the strength in tension and compression

D. Increase the cross-section of the beam

A. At the ends

B. At $$\frac{l}{3}$$ from both ends

C. At the center

D. None of these

A. Increases

B. Decreases

C. Remains same

D. None of these

A. Increases

B. Decreases

C. Remain same

D. None of these

A. Of same magnitude as that of bar and applied at the lower end

B. Half the weight of bar applied at lower end

C. Half of the square of weight of bar applied at lower end

D. One fourth of weight of bar applied at lower end

A. 2C

B. 3C

C. $$\frac{{2{\text{C}}}}{3}$$

D. $$\frac{{3{\text{C}}}}{2}$$

A. No stress

B. Shear stress

C. Tensile stress

D. Compressive stress

A. $$\frac{{{\text{W}}{l^3}}}{{48{\text{E}}I}}$$

B. $$\frac{{{\text{W}}{{\text{a}}^2}{{\text{b}}^2}}}{{3{\text{E}}Il}}$$

C. $$\frac{{{\text{Wa}}}}{{{\text{a}}\sqrt 3 {\text{E}}Il}} \times {\left( {{l^2} - {{\text{a}}^2}} \right)^{\frac{3}{2}}}$$

D. $$\frac{{5{\text{W}}{l^3}}}{{384{\text{E}}I}}$$