Machine Design MCQ Questions & Answers | Mechanical Engineering

A. $$\frac{{2{\text{W}}{{\text{D}}^3}{\text{n}}}}{{{\text{G}}{{\text{d}}^4}}}$$

B. $$\frac{{4{\text{W}}{{\text{D}}^3}{\text{n}}}}{{{\text{G}}{{\text{d}}^4}}}$$

C. $$\frac{{8{\text{W}}{{\text{D}}^3}{\text{n}}}}{{{\text{G}}{{\text{d}}^4}}}$$

D. $$\frac{{16{\text{W}}{{\text{D}}^3}{\text{n}}}}{{{\text{G}}{{\text{d}}^4}}}$$

A. To apply forces

B. To measure forces

C. To absorb shocks

D. To store strain energy

A. The ratio of endurance limit with stress concentration to the endurance limit without stress concentration

B. The ratio of endurance limit without stress concentration to the endurance limit with stress concentration

C. The product of the endurance limits with and without stress concentration

D. All of the above

A. $$\frac{{\text{b}}}{{\text{L}}}$$

B. $$\frac{{\text{b}}}{{2{\text{L}}}}$$

C. $$1 - 2{\text{bL}}$$

D. $$1 - \frac{{\text{b}}}{{\text{L}}}$$

A. Elastic limit

B. Strain

C. Factor of safety

D. Bulk modulus

A. $${\left( {\frac{{\sqrt {{{\text{P}}_1}} + \sqrt {{{\text{P}}_2}} }}{2}} \right)^2}$$

B. $${{\text{P}}_1} + {{\text{P}}_2}$$

C. $$\frac{1}{2}\left( {{{\text{P}}_1} + {{\text{P}}_2}} \right)$$

D. $$\frac{1}{2}\left( {{{\text{P}}_1} + {{\text{P}}_2}} \right) + {{\text{P}}_{\text{c}}}$$

A. $${{\text{P}}_1} - {{\text{P}}_2}$$

B. $${{\text{P}}_1} + {{\text{P}}_2}$$

C. $$\frac{1}{2}\left( {{{\text{P}}_1} + {{\text{P}}_2}} \right)$$

D. $$\frac{1}{2}\left( {{{\text{P}}_1} + {{\text{P}}_2}} \right) + {{\text{P}}_{\text{c}}}$$

A. Right hand threads on bout ends

B. Left hand threads on both ends

C. Left hand threads on one end and right hand threads on other end

D. No threads

A. Directly proportional to (shaft diameter)²

B. Inversely proportional to (shaft diameter)²

C. Directly proportional to (shaft diameter)⁴

D. Inversely proportional to (shaft diameter)⁴

A. Brittle

B. Ductile

C. Elastic

D. Plastic