List of top Engineering Mechanics Questions

An idealised frame supports a load as shown in the figure. The horizontal component of the force transferred from the horizontal member PQ to the vertical member RS at P is \underline{\hspace{2cm} N (round off to one decimal place).} \includegraphics[width=0.35\linewidth]{image99.png}
A beam is subjected to a system of coplanar forces as shown in the figure. The magnitude of vertical reaction at Support P is \underline{\hspace{2cm} N (round off to one decimal place).} \includegraphics[width=0.75\linewidth]{image66.png}
The cross-section of a girder is shown in the figure (not to scale). The section is symmetric about a vertical axis (Y-Y). The moment of inertia of the section about the horizontal axis (X-X) passing through the centroid is \underline{\hspace{2cm} cm$^4$ (round off to nearest integer).} \includegraphics[width=0.25\linewidth]{image47.png}
A uniform rod \( KJ \) of weight \( w \) shown in the figure rests against a frictionless vertical wall at the point \( K \) and a rough horizontal surface at point \( J \). It is given that \( w = 10 \, \text{kN} \), \( a = 4 \, \text{m} \), and \( b = 3 \, \text{m} \). The minimum coefficient of static friction that is required at the point \( J \) to hold the rod in equilibrium is _________ (round off to three decimal places).
Which of the following statement(s) is/are correct?

A cantilever beam of length 0.3 m is subjected to a uniformly distributed load \( C = 10 \, \text{kN/m} \), as shown in the figure. The bending (flexural) rigidity of the beam is 5000 Nm\(^2\). Neglecting the self-weight of the beam, the magnitude of beam curvature in m\(^{-1}\) at the fixed end is