Theory Of Machine MCQ Questions & Answers | Mechanical Engineering

A. $$\sin \alpha = \frac{{\text{b}}}{{\text{c}}}$$

B. $$\cos \alpha = \frac{{\text{c}}}{{\text{b}}}$$

C. $$\tan \alpha = \frac{{\text{c}}}{{2{\text{b}}}}$$

D. $$\cot \alpha = \frac{{\text{c}}}{{2{\text{b}}}}$$

A. Less

B. More

C. Same

D. None of these

A. Less

B. More

C. Same

D. None of these

A. $$\frac{1}{2}\mu {\text{WRcosec}}\alpha $$

B. $$\frac{2}{3}\mu {\text{WRcosec}}\alpha $$

C. $$\frac{3}{4}\mu {\text{WRcosec}}\alpha $$

D. $$\mu {\text{WRcosec}}\alpha $$

A. $$\frac{1}{2}\mu {\text{Wcosec}}\alpha \left( {{{\text{r}}_1} + {{\text{r}}_2}} \right)$$

B. $$\frac{2}{3}\mu {\text{Wcosec}}\alpha \left( {{{\text{r}}_1} + {{\text{r}}_2}} \right)$$

C. $$\frac{1}{2}\mu {\text{Wcosec}}\alpha \left( {\frac{{{\text{r}}_1^3 - {\text{r}}_2^3}}{{{\text{r}}_1^2 - {\text{r}}_2^2}}} \right)$$

D. $$\frac{2}{3}\mu {\text{Wcosec}}\alpha \left( {\frac{{{\text{r}}_1^3 - {\text{r}}_2^3}}{{{\text{r}}_1^2 - {\text{r}}_2^2}}} \right)$$

A. Angular acceleration of the body

B. Moment of inertia of the body

C. Periodic time of the body

D. Frequency of vibration of the body

A. Sine functions

B. Square roots

C. Logarithms

D. Inversions

A. Long drives

B. Short drives

C. Long and short drives

D. None of these

A. $$\frac{1}{3}$$ v

B. $$\frac{2}{3}$$ v

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

D. $$\frac{9}{4}$$ v

A. There is a reduction in amplitude after every cycle of vibration

B. No external force acts on a body, after giving it an initial displacement

C. A body vibrates under the influence of external force

D. None of the above