Mechanical

                                                               Types of supports: 1) Simple supports 2) Roller supports 3) Hinged or pinned supports 4) Fixed supports 1) Simple supports:   Simple supports are those supports, which exert reactions perpendicular to the plane of support. It restricts the translation of body in one direction only, but not rotation. 2) Roller supports:          Roller supports are the supports consisting of rollers which exert reactions perpendicular to the               plane of the support. They restrict translation along one direction and no rotation. 3) Hinged or Pinned supports:   Hinge d supports are the supports which exert reactions in any direction but for our convenient point of view it is reso...

In thermodynamics, systems are categorized based on how they interact with their surroundings. Here’s a breakdown of the different types of systems: 1. Open System:      - Definition : An open system can exchange both matter and energy with its surroundings.    - Example: A boiling pot of water on the stove. The pot exchanges heat with the stove (energy) and                            water vapor with the air (matter). 2. Closed System:    - Definition: A closed system can exchange energy but not matter with its surroundings.    - Example: A sealed, rigid container of gas. The gas inside can exchange heat with the environment                         (energy), but no gas escapes or enters the container (matter). 3. Isolated System:    - Definition: An isolated system does not exchange either matt...