Machine Design MCQ Questions & Answers | Mechanical Engineering

A. $$\frac{{{{\text{k}}_1}{{\text{k}}_2}}}{{{{\text{k}}_1} + {{\text{k}}_2}}}$$

B. $$\frac{{{{\text{k}}_1} - {{\text{k}}_2}}}{{{{\text{k}}_1} + {{\text{k}}_2}}}$$

C. $$\frac{{{{\text{k}}_1} + {{\text{k}}_2}}}{{{{\text{k}}_1}{{\text{k}}_2}}}$$

D. $$\frac{{{{\text{k}}_1} - {{\text{k}}_2}}}{{{{\text{k}}_1}{{\text{k}}_2}}}$$

A. Open belt drive transmits more power than crossed belt drive

B. Crossed belt drive transmits more power than open belt drive

C. Open and crossed belt drives transmit same power

D. Power transmission does not depend upon open and crossed types of constructions

A. Diameter of both the shafts is same

B. Angle of twist of both the shafts is same

C. Material of both the shafts is same

D. Twisting moment of both the shafts is same

A. 3 mm

B. 5 mm

C. 10 mm

D. 20 mm

A. $$\frac{1}{{\sin \theta }}$$

B. $$\frac{1}{{\cos \theta }}$$

C. $$\frac{1}{{\tan \theta }}$$

D. $$\sin \theta \cos \theta $$

A. $${\text{pd}}{\sigma _{\text{c}}}$$

B. $${\text{pt}}{\sigma _{\text{c}}}$$

C. $${\text{ndt}}{\sigma _{\text{c}}}$$

D. $$\left( {{\text{p}} - {\text{d}}} \right){\text{t}}{\sigma _{\text{c}}}$$

A. $${\text{pd}}{\sigma _{\text{t}}}$$

B. $${\text{pt}}{\sigma _{\text{t}}}$$

C. $$\left( {{\text{p}} - {\text{d}}} \right){\sigma _{\text{t}}}$$

D. $$\left( {{\text{p}} - {\text{d}}} \right){\text{t}}{\sigma _{\text{t}}}$$

A. Transverse fillet welded joint

B. Parallel fillet welded joint

C. Butt welded joint

D. All of these

A. Ductile material

B. Brittle material

C. Elastic material

D. Hard material

A. $$\frac{{{{\text{p}}_1} - {\text{m}}{{\text{v}}^2}}}{{{{\text{p}}_2} - {\text{m}}{{\text{v}}^2}}} = {{\text{e}}^{{\text{f}}\alpha }}$$

B. $$\frac{{{{\text{p}}_1}}}{{{{\text{p}}_2}}} = {{\text{e}}^{{\text{f}}\alpha }}$$

C. $$\frac{{{{\text{p}}_1}}}{{{{\text{p}}_2}}} = {{\text{e}}^{ - {\text{f}}\alpha }}$$

D. $$\frac{{{{\text{p}}_1} - {\text{m}}{{\text{v}}^2}}}{{{{\text{p}}_2} - {\text{m}}{{\text{v}}^2}}} = {{\text{e}}^{ - {\text{f}}\alpha }}$$