DEPARTMENT OF MECHANICAL ENGINEERING

  Cochran Boiler:  Definition, Parts or Construction, Working Principle, Advantages, Disadvantages, Application Cochran Boiler is a simple  fire tube boiler  with multiple fire tubes. It is a modification of a simple vertical boiler. In the Cochran boiler, the heating surface is replaced with multiple fire tubes that’s why it is the modification of Simple Vertical Boiler. Cochran boiler has greater efficiency comparatively Simple vertical boiler. Here in this article, we are going to study  Definition, Parts or Construction, Working Principle, Advantages, Disadvantages, and Application in very detail. Cochran Boiler Definition: Cochran boiler is a fire tube boiler (Fire inside the boiler and water surrounding them) in which coal or gases as a working fluid is used, for generating the steam,   and that steam is   further used for several purposes. Now comes to the construction, Cochran Boiler Parts or Construction: Cochran Boiler consists of the followi...

  GD&T: The Language of Engineering Precision 1. Importance of GD&T GD&T is a standardized system that communicates the exact geometry, size, and allowable variation of a part. Why it matters: Ensures Interchangeability: Parts from different manufacturers can fit together without trial and error. Improves Quality: Reduces defects and increases functional accuracy. Cost-Effective: Prevents over-tolerancing that could increase manufacturing costs. Clear Communication: Eliminates ambiguity in engineering drawings. 2. Tolerance Specification and Interpretation Tolerance is the permissible variation in a part’s dimension. In GD&T: Specification involves defining acceptable limits for size, form, orientation, and position. Interpretation means understanding these limits correctly to produce and inspect parts as intended. Example: If a shaft is specified as Ø20 ± 0.05 mm , it means the diameter can range from 19.95 mm to 20.05 mm. 3. Tolerance Symbols GD&T uses...