Theory Of Machine MCQ Questions & Answers | Mechanical Engineering

A. The system is critically damped

B. There is no critical speed in the system

C. The system is also statically balanced

D. There will absolutely no wear of bearings

A. The net dynamic force acting on the shaft is equal to zero

B. The net couple due to the dynamic forces acting on the shaft is equal to zero

C. Both (A) and (B)

D. None of the above

A. Lower pair

B. Higher pair

C. Turning pair

D. Sliding pair

A. 1, 3

B. 2, 2

C. 3, 1

D. 4, 0

A. $${\text{P}} = {\text{W}}\tan \alpha $$

B. $${\text{P}} = {\text{W}}\tan \left( {\alpha + \varphi } \right)$$

C. $${\text{P}} = {\text{W}}\left( {\sin \alpha + \mu \cos \alpha } \right)$$

D. $${\text{P}} = {\text{W}}\left( {\cos \alpha + \mu \sin \alpha } \right)$$

A. Sliding and turning pairs

B. Sliding and rotary pairs

C. Turning and rotary pairs

D. Sliding pairs only

A. 2

B. 3

C. 4

D. 5

A. Thompson indicator

B. Richard indicator

C. Simplex indicator

D. Thomson indicator

A. At the instantaneous center of rotation, one rigid link rotates instantaneously relative to another for the configuration of mechanism considered

B. The two rigid links have no linear velocities relative to each other at the instantaneous center

C. The two rigid links which have no linear velocity relative to each other at this center have the same linear velocity to the third rigid link

D. The double center can be denoted either by O₂ or O₁₂, but proper selection should be made

A. $$\left( {{{\text{r}}_1} + {{\text{r}}_2}} \right)\frac{{\text{y}}}{{\text{x}}}$$

B. $$\left( {{{\text{r}}_1} + {{\text{r}}_2}} \right)\frac{{\text{x}}}{{\text{y}}}$$

C. $$\left( {{{\text{r}}_1} - {{\text{r}}_2}} \right)\frac{{\text{y}}}{{\text{x}}}$$

D. $$\left( {{{\text{r}}_1} - {{\text{r}}_2}} \right)\frac{{\text{x}}}{{\text{y}}}$$