Question

Can anyone help me in clearing the concepts of ENGINEERING DRAWING

Answer 1

I don't know how you are studying the drawings. Is it paper based or AutoCad based and where are you stuck? Anyways i would refer you a book called "Machine Drawing by N.D Bhatt". It has been a trusted book across many students and teachers for years now.

Get on with the book. It explains you all from basic concepts to larger parts. It should not be a difficulty getting through them. You can also try working on autocad simultaneously to get things right.

According to my knowledge it is something like a dimension measurement unit.I am giving you the wikipedia link where you can get a good idea.

see the notes below where I address your additional info. below where I wish you Good Luck Thanks.

It's a language, a communication tool. Engineering sketches are useful to show concepts in 3-d, clearances, interferences, directions of motions, space required and paths of accessibility. interrelationships between parts, etc. Sketches can be done quickly, but need a good eye to keep things in proportion over the whole drawing or the sketch will become confusing.

orthographic sketches (done roughly to scale) serve to show an object from front, side, and top view. and the relationship between any two views can clarify what's seen from that view, and how deep behind the surface other viewed objects are. Sometimes there are conflicting lines that are not discretely defined in the two views selected. if so and isometric view is selected to clarify the confusing lines. Sometimes the lines of an isometric can be confused so an orthogonal view is used. Sometimes BOTH are used to eliminate or reduce confusion.

Skillfully used, engineering sketches are useful for documenting existing conditions, and can be used for "Talking purposes" and between two or more engineers that can sketch them, a fast and effective conversation can rapidly clarify confusing situations.

It can also be useful to show things that don't even exist yet. Sometimes a quick sketch can clarify something that's not clear in any other drawings.

It also enables one to ask of others meaningful questions about things that are yet unclear to anyone except the person who has visualized a situation in the first place and does not yet realized that his description is yet unclear.

Often an engineer might use sketches to develop his ideas in the process of designing various solutions to problems, and help him/ or her to clarify his own thoughts as he develops additional steps in the creative design process.

Having done this he might then, start to decide how to best present his/or her thoughts before committing to final drawings.

A very useful skill to have, and essential one for some types of work, and also a very interesting way to enliven a variety of dinner table conversations, and allows others to point at visual concepts and ask questions about things that they don't have the words to describe.

Answer 2

1. Syllabus: It is essential that you must know syllabus. “Yaar! Drawing or Mechanics tough hai, 40 kaise bhi nikalne padenge” (Dude, Mechanics and Engineering Drawing are quite tough, anyhow we have to secure 40 marks). This statement is a jargon among first-year guys. The focal reason behind this is that we are oblivious to the syllabus. Syllabus is not just knowing chapter names. It is a precise calculation and estimation of which chapter is having more weight and which topic is having more probability in the examination than another. Before starting to study take foolscap and note down chapters weight-age and importance of topics.2. Balance: Student often makes mistakes by just concentrating on theory and partly paying attention on numerical. Mechanics is having 3/4th (75%) mathematics. The theory is a good weapon which is going to support you in exams but I recommend you not to totally hinge on it. You should exercise numerical regularly. If you will practice then you will be able to draw problem statement from the question. Understand, what is asked and for how valued it is (in terms of marks). Questions are twisted and jumbled. Correspondingly, Engineering Drawing also needs exercise. Orthographic projection, Isometric view and Sectional drawing need imagination(You know what I mean). If you can not read and comprehend drawing then it is going to be a herculean task to crack examination. Learn symbols of drawings.

3. Paper Pattern: Dude! No matter how well equipped you went in the examination if you are unable to identify pattern then you will end up early. Go through previous question papers and schemes. You will have a fair impression of questions. What is the type of question and what marks it carries? How much time you have to pay for a particular question?

Write your best topics (answers) first in the exam.Don’t produce cliche. Be specific and Be preciseDon’t tell stories, write answers.Use Calculator correctly. Be focus while computing answer on Calculator. (One mistake and your answer is wrong)Immaculate paper presentation is half-battle-win.Keep it Simple. Don’t try to decorate answer sheet.The quality of the answer is important and then the quantity of answer.Time Management. (You have only 180 Minutes)

4. Don’t Quit: Prepare as per hundred per cent syllabus. In case you skipped two chapters than the probability of getting marks will be less that means higher odds of failure. Stick with SMART WORK not on HARD WORK. What I want to convey is that you have to be pragmatic while studying and writing in the examination. Let’s us take the example of subject X having 5 chapter 20 marks for each. You prepared only 3 chapters. So you prepared for 60 Marks out of 100 marks. The ratio of you preparation is (60/100= 0.6). If your preparation consists of 4 chapters then the ratio of preparation is (80/100=0.8).

These are some imperative tricks to crack Mechanics and Engineering Drawing. you can also practice engineering drawings with softwares of CAD