INTRODUCTION OF ENGINEERING DRAWING

Simply you can say, it is a special type of language globally used for engineers or technical persons to communicate between them for fulfillment of target or making any geometrical shaped object or rather say any project.

Suppose, there is a building or bridge construction or maybe the construction of an electric or power substation, or maybe in a mechanical workshop, we need various types of technical persons or specialists for construction or production.

As an example, some engineers ensure the stability of load capacity of the ground and how much load can bear that ground by doing the field survey, some technical persons or engineers develop the structure or construction, and some technical person completes the fabrication ( i.e. riveting or welding ) portions, some technical persons or engineers develop the electrical supply connections and so on.

All technical persons and engineers come together to complete a project or projects but they all never come from the same place & their mother tongue also differs. But with the help of engineering drawing, they all can communicate and understand each other to complete the project properly.

That's why, it is being used globally and engineering drawing has become a Universal language in the field of engineering.

What is ENGINEERING DRAWING?

An engineering drawing is a type of technical drawing also a Universal language that is used to convey information about an object to specify clearly the necessary geometry for the construction of that object and usually several drawings are necessarily used to completely specify even a simple component.

IMPORTANCE OF ENGINEERING DRAWING FOR OUR IMPROVEMENTS :

The cost-efficient or economic fulfillment of any country specifically depends on its business improvements. Due to the globalization made of any industry of our country predicted to be of global market general.

Due to the above said reason our products required to be of very excessive pleasant with recognize to size measurement, fit, finish and so forth.

To produce the best standard product, all the technical personnel in an enterprise must
have a valid expertise in engineering drawing, because engineering drawing is the language of engineers.

Engineering drawing is a normal language with exceptional styles of strains. Technical employees in any industry including craftsmen are expected to communicate something concerning an element or a factor through drawings related to lines, symbols, abbreviations, and so on.

With our spoken languages, it's miles not possible to explicit the all information of a product. Whereas Engineering drawing can!

But, specific knowledge and practice are ought to for designing an element. Because even a small mistake in the drawing may also reflect very badly on the product.

Therefore reading and doing engineering drawings are very plenty important for craftsmen, draftsmen, and engineers too.

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IMPORTANT SHORT QUESTIONS AND ITS ANSWERS FROM ENGINEERING DRAWING INSTRUMENTS

● Fill in the blanks type Questions : 1. The full form of BIS is ……………………… Ans: Bureau of Indian Standard. 2. The inclination of inclined lettering as per BIS is ……………………. Ans: 75° 3. Set squares are used for drawing ……………………. lines. Ans: Parallel [ Vertical, Horizontal, Inclined ]. 4. Angle of multiple of as constructed by the combined use of …………… & ………….. Ans: T-SQUARE & SETS SQUARE. 5. In the absence of protractor, ………………………. Is used to measure angles. Ans: Angle of Chords. 6. The scale of chords is used to measure ……………………….. Ans: Angles. 7. Two methods/systems to represent the dimensions are …………………. and …………….. system. Ans: Aligned and Unidirectional. 8. Lettering is usually done in ……………….. letters. Ans: Capital. 9. The size of the letter is described by its …………………………. Ans: Height. 10. Single stroke letters may be either …………………… or ………………………… Ans: Vertical or Inclined. 11. The dimension line should not ………………………. each other. Ans: Cross / I

LAYOUT OF BORDERS AND TITLE BLOCK ON DRAWING SHEET

Post Summarization: ● Introduction. ● Size of drawing sheets. ● Margin. ● Borderlines. ● Title block. ● Rules for selecting Titles. ● Revision Table. ● Notes. ● Tutorial Videos (Coming Soon!) INTRODUCTION: A drawing sheet consists of an engineering drawing and must have some other aspects too i.e. Border lines, Title block, Notes, etc for better demonstration of the drawing. The layout of border lines and title blocks should always be done in some specific manner on the drawing sheet as it's not only a necessity for increasing the visual orientation of the drawing sheets, moreover, these help to read the drawing sheet more speedily in a systematic way. SIZE OF THE DRAWING SHEET: The size of the drawing sheet in detail can be found in the TECHNICAL DRAWING AND INSTRUMENTS of this blog. MARGIN: Margin or Marginal lines are drawn on the drawing sheet only where the untrimmed size of the drawing sheet is provided. Generally, in the paper industry, trimmers are used to trim drawing sh

IMPORTANT SHORT QUESTIONS & ITS ANSWERS ON CURVE & LOCI

IMPORTANT SHORT QUESTIONS : 1. A locus is the path of a point which moves in ……………………… Ans: Same plane. 2. When the section plane is inclined to the axis and is parallel to one of the generators, the section is a ………………… Ans: Parabola. 3. When the section plane is inclined to the axis and cuts all the generators, on one side of the apex, the section is an ……………….. Ans: Ellipse. 4. When the section plane cuts both the parts of the double cone on one side of the axis, the section is ……………. Ans: Hyperbola. 5. If eccentricity (e) of a curve is equal to 1, the curve is said to be ………………. Ans: Parabola. 6. If eccentricity (e) of a curve is less than 1, the curve is said to be ………………. Ans: Ellipse. 7. If eccentricity (e) of a curve is greater than 1, the curve is said to be …………. Ans: Hyperbola. 8. The ………… is the point at which the conic cuts the axis. Ans: Apex / Vertex. 9. The ………….. is the point at which the generator cuts the axis. Ans: Apex / Vertex. 10. The point at

LETTERING

LETTERING: INTRODUCTION Writing titles on drawing sheets, dimensions on drawing objects, special notes, and other important particulars on a drawing is called Lettering. It is a very important step in an engineering drawing. Lettering should, therefore, be done properly in a clear, legible, and uniform style. It should be in plain and simple style so that it could be done freehand and speedily. Any ornamental style must be avoided lettering in engineering drawings. Though accurate and neat drawings may be drawn yet sometimes, their appearance is spoiled by ornamental lettering or sometimes, their usefulness is decreased by poor lettering. Note: The use of drawing instruments in lettering takes considerable time and hence, it should be avoided to save time, especially in the examination hall. Efficiency in the art of lettering can be achieved by careful and continuous practices. **Actually, a free hand drawing means, "keeping almost the same visual shape, you can draw any comp

IMPORTANT! Short Questions and Answers from SCALE

IMPORTANT SHORT QUESTIONS AND ANSWERS FROM SCALE 1. An instrument used to measure the length or distance between two objects or points, termed as.................. Ans: Scale. 2. The scale of chords is used to measure ……………………….. Ans: Angles. 3. The ratio of drawing length to the actual length of an object is called ………………………. Ans: Representative Fraction. 4. When measurements are required in two units or a unit and its subdivision, the ………………… is used. Ans: Plain scale. 5. When measurements are required in three units, the …………………. Scale is used. Ans: Diagonal. 6. When a drawing is drawn of the same size as that of the object, the scale used is …………………. Ans: Full-size scale 7. When drawings are drawn smaller than the actual size of the object, the scale is said to be ………….. Ans: Reducing scale 8. R.F. is the ratio of .................................. to the .................................. Ans: Drawing Length of an object, Actual Length of that object. 9.

TECHNICAL DRAWING AND INSTRUMENTS

What is Technical Drawing? What is the necessity of Technical Drawing? Technical drawing or drafting, is the demonstration and discipline of composing drawings that visually communicate how something capacities or is developed. Technical drawing is basic for imparting thoughts in industry and engineering. To make the drawings more clear, individuals use familiar symbols, perspectives, units of measurement, notation systems, visual styles, and page design. Together, such conventions constitute a visual language and help to guarantee that the attraction is unambiguous and moderately straightforward. A large number of the images and standards of Technical drawing are systematized in an international standard called ISO 128. The requirement for exact correspondence in the arrangement of a practical record recognizes specialized drawing from the expressive drawing of the visual expressions. Creative drawings are emotionally deciphered; their implications are duplicated and decided. Specia

SCALE

INTRODUCTION TO SCALE : Scales are made of wood, steel, celluloid plastic, or cardboard. 15 cm long and 2 cm wide or 30 cm long and 3 cm wide level scales are in Common use. They are ordinarily around 1 mm thick. However, a 15 c.m. long and 2 c.m. wide scale is considered a Standard length of scale. By using scale, small components can be drawn with the same size as the components are actually. A 150 mm long pen or 175 mm long pencil may be shown by a drawing of 150 mm length or 175 mm length respectively. Drawings of the same size as the objects are called full-size drawings and ordinary full-size scales are generally used to draw such drawings. A scale is determined by the ratio of the dimensions of an element as represented in a drawing to the actual dimensions of the same element. This is called R.F. or Representative Fraction of Scale. The scales are generally classified as : (1) Plain scales (2) Diagonal scales (3) Vernier scales (4) Comparative scales (5) Scale of chor

MECH ENGINEERING DRAWING

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