Engineering Mechanics MCQ Questions & Answers | Mechanical Engineering

A. Reversible machine

B. Non-reversible machine

C. Neither reversible nor non-reversible machine

D. Ideal machine

A. If any number of forces acting at a point can be represented by the sides of a polygon taken in order, then the forces are in equilibrium

B. If any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon, then the forces are in equilibrium

C. If a polygon representing forces acting at a point is closed then forces are in equilibrium

D. If any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon taken in order, then the forces are in equilibrium

A. v = u + at

B. s = ut + $$\frac{1}{2}$$ at²

C. v² = u² + 2as

D. All of these

A. $$\frac{{{\text{m}}{{\text{r}}^2}}}{2}$$

B. $$\frac{{{\text{m}}{{\text{r}}^2}}}{4}$$

C. $$\frac{{{\text{m}}{{\text{r}}^2}}}{6}$$

D. $$\frac{{{\text{m}}{{\text{r}}^2}}}{8}$$

A. Non-equilibrium

B. Partial equilibrium

C. Full equilibrium

D. Unpredictable

A. $$\frac{{\text{D}}}{{{{\text{d}}_1} + {{\text{d}}_2}}}$$

B. $$\frac{{\text{D}}}{{{{\text{d}}_1} - {{\text{d}}_2}}}$$

C. $$\frac{{2{\text{D}}}}{{{{\text{d}}_1} + {{\text{d}}_2}}}$$

D. $$\frac{{2{\text{D}}}}{{{{\text{d}}_1} - {{\text{d}}_2}}}$$

A. In the shaded area

B. In the hole

C. At ‘O’

D. None of these

A. 2n³

B. 2n

C. n²

D. 3n²

A. D + d

B. D - d

C. D × d

D. $$\frac{{\text{D}}}{{\text{d}}}$$

A. A reversible machine

B. A non-reversible machine

C. An ideal machine

D. None of these