Textbook of Engineering Drawing in Download PDF System pulling in is a two dimensional counsel of three dimensional objects. In general, it provides required details about the shape, size, surface quality, material, processing process,etc., of the object. It is the graphic language from which a qualified person can visualise items.
Drawings prepared in one country may be utilised in any other country irrespective of the language spoken. Hence, design drawing can be called the common vocabulary of engineers. Any language to end up being communicative, should follow specific rules so that it conveys the same meaning to every one. Similarly, drawing practice must follow certain guidelines, if it will be to offer as a means of
communication. For this purpose, Bureau of Indian Standards (BIS) adapted the International Requirements on code of exercise for sketching. The other foreign specifications are: DIN of Uk, BS of Britain and ANSI of America.
The ability to read drawing is the most important requirement of all technical people in any profession.
As compared to verbal or written description, this method is brief and more clear. Some of the
applications are : building painting for civil engineers, machine getting for mechanical engineers,
circuit layouts for electrical and electronics engineers, pc graphics for 1 and all.
The subject in general is designed to impart the following skills.
1. Ability to go through and prepare system sketches.
2. Capability to make free – hand painting of objects.
3. Energy to imagine, analyse and communicate, and
4. Capacity to understand some other subjects
Until recently pulling in boards used are made of well seasoned softwood of about 25 mm thick with
a working edge for T-square. Nowadays mini-draughters are used instead of T-squares which
can be fixed on any board. The standard dimension of table depends on the size of drawing piece size
Download Textbook of Engineering Drawing PDF