📘 mechanical engineering

1. **Problem statement:** A horizontal shaft is supported at two bearings A and B. Forces of 25 kN and 35 kN act at points C and D, located 150 mm from A and 200 mm from B respecti

1. **Problem Statement:** Given a column with an external diameter of 200 mm and a maximum allowable stress of 480 N/mm², determine the internal diameter of the column if the facto

1. The problem asks to find an example of a mechanical mechanism involving vector and scalar quantities with calculations. 2. In mechanical engineering, a common example is the cal

1. **Problem Statement:** Calculate the minimum required shell thickness for a thin-walled cylindrical steel shell under internal gauge pressure $p=6.0$ MPa, with diameter $D=400$

1. **Problem Statement:** Analyze the stress state at point P on a steel plate with given stresses $\sigma_x=85$, $\sigma_y=-30$, $\tau_{xy}=40$ MPa and weld orientation $\theta=30

1. **State the problem:** We need to find the twist per length (in degrees per inch) of a shaft transmitting 0.42 hp at 1147 rpm, with given dimensions and shear modulus.

1. **Problem Statement:** A firm needs a hollow steel tube to carry an axial compressive load of 200000 N (200 kN). Steel yield stress is 250 N/mm², and the design factor of safety

1. The problem asks for the governing equation of a microbeam. 2. Microbeams are small-scale beams where size effects become significant, often modeled using non-classical beam the

1. **Problem Statement:** We have a mechanical part with a cylindrical hole of radius $R=20$ units.

1. **State the problem:** We need to find the maximum working pressure $p$ for a thin spherical steel vessel with diameter $d = 632$ mm, wall thickness $t = 3$ mm, and allowable te

1. **Problem Statement:** We are given a jib crane structure with Member 1 having length $L_1$ and angle $\alpha_1$ with the horizontal. The spring balance reading for Member 1 is

1. **Problem Statement:** We are given measurements of heights ($h_A$, $h_B$, $h_C$, $h_D$), lengths ($L_1$, $L_2$, $L_3$), and weights ($W$) along with theoretical and experimenta

1. **Problem Statement:** C1a: We need to find the radial displacement profile $u(r)$ for a pressure vessel with inner radius $a=5$ and outer radius $b=8$ by dividing the thickness

1. Problem Statement: (i) Describe the working principle of pressure gauges with a diagram.

1. State five principal parts of an Internal Combustion Engine and their function: 1. Cylinder: Houses the piston and combustion process.

1. **Problem Statement:** Calculate the module and pitch circle diameters of a pair of helical gears transmitting 25 kW power.

1. **Problem Statement:** We have a shaft ABCD composed of square tubes with different cross section dimensions. The load $P$ acts at the end of segment CD causing torque.

1. Problem 1 State the problem: A flywheel of weight 2006.55 lb has a radius of gyration 15.24 cm; the shaft journal rim diameter is 3.048 cm and coefficient of friction 0.06. The

1. **Stating the problem:** Determine the moment about point O (origin) of the resultant force exerted on the tree at point B by cables AB and BC, given tensions in cables AB and B