A shock absorber is a crucial component in mechanical engineering that helps dampen vibrations and impacts in a system. It works by converting kinetic energy into thermal energy, thus reducing the impact of sudden movements or shocks. In vehicles, shock absorbers play a vital role in ensuring a smooth and stable ride by absorbing the vibrations caused by uneven road surfaces or sudden braking. In industrial machinery, shock absorbers are used to protect delicate equipment from damage due to vibrations or impacts during operation. Overall, shock absorbers are essential in mechanical engineering to enhance the performance, efficiency, and lifespan of various systems and equipment.

 An electrical enclosure, also known as a distribution board (DB) or fuse box, is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective fuse or circuit breaker for each circuit in a common enclosure1. The DB box is typically made of metal and is designed to protect the electrical components inside from environmental factors such as dust, moisture, and physical damage2. It is usually installed in a location that is easily accessible for maintenance purposes.

A pressure vessel is a container designed to hold gases or liquids at a pressure substantially different from the ambient pressure. A welded steel pressure vessel constructed as a horizontal cylinder with domed ends. An access cover can be seen at one end, and a drain valve at the bottom center.

 Helical bevel gears are types of gears commonly used in mechanical engineering applications. They are designed with curved teeth that are twisted along the gear's surface, allowing for a smooth and efficient transfer of power between intersecting shafts at various angles. The helical bevel gear design helps to reduce noise and vibration while providing higher gear ratios and increased load capacity compared to other types of gears. These gears are widely used in industries such as automotive, aerospace, and manufacturing for applications that require precise and reliable torque transmission. In mechanical engineering, helical bevel gears play a crucial role in optimizing the performance and efficiency of power transmission systems.

 In mechanical engineering, bearings are crucial components that support the rotation or linear movement of machinery parts. They reduce friction between moving parts and help in transmitting loads smoothly. Bearings come in various types such as ball bearings, roller bearings, and plain bearings, each serving specific purposes based on the application requirements. Proper selection and maintenance of bearings are essential for ensuring the efficiency and longevity of machinery and equipment. Engineers need to consider factors like load capacity, speed, lubrication, and environmental conditions when choosing the right bearing for a particular application.