Knowledge in types of lines
notes of Engineering drawing
Engineering drawing, most commonly referred to as engineering graphics, is the art of manipulation of designs of a variety of components, especially those related to engineering. It primarily consists of sketching the actual component, for example, a machine, with its exact dimensions.
parth gera
Signalling in Railways by Aman
Signals are created every where because the RAILWAY required a signals to stop and run the train and highways also required same thing
Aman Tripathi