Engineering Mechanics MCQ Questions & Answers | Mechanical Engineering

A. Towards the wall at its upper end

B. Away from the wall at its upper end

C. Upwards at its upper end

D. Downwards at its upper end

A. Downwards at its upper end

B. Upwards at its upper end

C. Perpendicular to the wall at its upper end

D. Zero at its upper end

A. Three forces acting at a point will be in equilibrium

B. Three forces acting at a point can be represented by a triangle, each side being proportional to force

C. If three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium

D. If three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two

A. $$\frac{{\pi {{\text{d}}^3}}}{{16}}$$

B. $$\frac{{\pi {{\text{d}}^3}}}{{32}}$$

C. $$\frac{{\pi {{\text{d}}^4}}}{{32}}$$

D. $$\frac{{\pi {{\text{d}}^4}}}{{64}}$$

A. $$\frac{{{\text{g}}{{\cos }^2}\beta }}{{2{{\text{u}}^2}\sin \left( {\alpha + \beta } \right)\cos \alpha }}$$

B. $$\frac{{2{{\text{u}}^2}\sin \left( {\alpha + \beta } \right)\cos \alpha }}{{{\text{g}}{{\cos }^2}\beta }}$$

C. $$\frac{{{\text{g}}{{\cos }^2}\beta }}{{2{{\text{u}}^2}\sin \left( {\alpha - \beta } \right)\cos \alpha }}$$

D. $$\frac{{2{{\text{u}}^2}\sin \left( {\alpha - \beta } \right)\cos \alpha }}{{{\text{g}}{{\cos }^2}\beta }}$$

A. $$\tan \theta = \frac{{\sum {\text{H}} }}{{\sum {\text{V}} }}$$

B. $$\tan \theta = \frac{{\sum {\text{V}} }}{{\sum {\text{H}} }}$$

C. $$\tan \theta = \sum {{\text{V}} \times \sum {\text{H}} } $$

D. $$\tan \theta = \sqrt {\sum {{\text{V}} + \sum {\text{H}} } } $$

A. Balance each other

B. Produce a couple and an unbalanced force

C. Are equivalent

D. Cannot balance each other

A. Tangent of angle between normal reaction and the resultant of normal reaction and limiting friction

B. Ratio of limiting friction and normal reaction

C. The friction force acting when the body is just about to move

D. The friction force acting when the body is in motion

A. Bodies having relative motion

B. Two dry surfaces

C. Two lubricated surfaces

D. Solids and liquids

A. Angle of friction

B. Angle of repose

C. Angle of banking

D. None of these