Engineering Graphics and Design Quiz

Questions and Answers

Explain the purpose of engineering drawing and its significance in the field of engineering design and manufacturing.

Engineering drawing is a two-dimensional representation of three-dimensional objects, providing necessary information about the shape, size, surface quality, material, manufacturing process, etc. It is the graphic language from which a trained person can visualize objects, and it serves as a means of communication in the field of engineering design and manufacturing.

What are the international standards for engineering drawing and their significance?

The international standards for engineering drawing include Bureau of Indian Standards (BIS), DIN of Germany, BS of Britain, and ANSI of America. These standards ensure that drawings prepared in one country can be utilized in any other country, making engineering drawing the universal language of engineers.

List 5 drawing instruments used in drafting work.

The drawing instruments used in drafting work include drawing board, set squares, French curves, templates, mini drafter.

Describe the traditional material used for drawing boards and its specifications.

<p>Until recently, drawing boards used are made of well-seasoned softwood of about 25 mm thick with a working edge for T-square.</p> Signup and view all the answers

What are the key elements that drawing practice must follow to serve as a means of communication?

<p>Drawing practice must follow certain rules to convey the same meaning to everyone, and for this purpose, Bureau of Indian Standards (BIS) adapted the International Standards on code of practice for drawing. The key elements include shape, size, surface quality, material, and manufacturing process of the object.</p> Signup and view all the answers

Study Notes

Engineering Drawing and its Significance

Engineering drawing serves as a means of communication between designers, manufacturers, and construction teams to convey design intent and specifications.
It enables the creation of precise and accurate designs, facilitating the production of complex systems and components.
Engineering drawing is essential in the field of engineering design and manufacturing, as it ensures that designs are translated into reality with precision and accuracy.

International Standards for Engineering Drawing

International standards for engineering drawing, such as ISO 128 and ASME Y14.5, provide a common language and framework for creating and interpreting drawings.
These standards ensure consistency, clarity, and accuracy in drawings, facilitating collaboration and communication across different regions and industries.

Drawing Instruments Used in Drafting Work

T-square: Used for creating straight lines and precise angles.
Set squares: Used for creating precise angles and checking the accuracy of drawings.
Pencils: Used for creating freehand sketches and preliminary drawings.
Erasers: Used for removing errors and correcting drawings.
Compass: Used for creating circular arcs and curves.

Traditional Material Used for Drawing Boards

Wooden drawing boards: Made from hardwoods like birch or beech, these boards provide a smooth and durable surface for drawing.
Specifications: Drawing boards typically measure 24" x 36" (61 cm x 91 cm) and have a smooth, scratch-resistant surface.

Key Elements of Drawing Practice

Clarity: Drawings must be clear and legible, with minimal ambiguity or confusion.
Accuracy: Drawings must accurately represent the design intent and specifications.
Consistency: Drawings must follow a consistent style and notation, ensuring that information is conveyed effectively.
Completeness: Drawings must provide all necessary information, including dimensions, materials, and tolerances.
Uniqueness: Drawings must be unique and distinct, avoiding duplication or confusion.