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Engineering Symbology, Prints and Drawings

A. Bhatia, B.E.

Course Outline

Engineering drawing is a formal and precise way of communicating information about the shape, size, features and precision of physical objects. The drawings of the engineer are an obvious case of making visible the practical expression of the profession, the interpretation of which has a direct impact on the final product.

This 4-hr course provides a thorough explanation of how engineering drawings are structured and the conventions that are used in making them and reading them. The course is designed to demonstrate how to read mechanical and technical drawings of piping and mechanical devices, controllers, and instruments connected to the network of pipes in an industrial plant.

The course material is extract from Department of Energy, handbook (DOE-HDBK-1016/1-93), ENGINEERING SYMBOLOGY, PRINTS and DRAWINGS, Volume 1 of 2 and covers Module 1 and 2.

This course includes a multiple-choice quiz at the end, which is designed to enhance the understanding of the course materials.

Learning Objective

At the conclusion of this course, the reader will learn:

Intended Audience

This course will be useful for anyone who interprets engineering drawings: product manufacturing, and quality engineers; inspectors; machinists; mechanical and process engineers, production personnel; fabrication and construction workers, purchasing agents; etc.

Benefit to Attendees

Attendee of this course will get to learn the basic symbology, common standards and conventions of the engineering drawings. The knowledge gained will be immensely useful in preparation, interpretation and reviewing of P&IDs, logic diagrams, fabrication, construction, architectural and other forms of engineering drawings.

Course Introduction

The ability to read and understand information contained on drawings is essential to perform most engineering-related jobs. Engineering drawings are the industry's means of communicating detailed and accurate information on how to fabricate, assemble, troubleshoot, repair, and operate a piece of equipment or a system. To understand how to "read" a drawing it is necessary to be familiar with the standard conventions, rules, and basic symbols used on the various types of drawings.

This course provides the detailed description of Engineering Symbology, Prints and Drawings.


Course Content

This course is in the following PDF document:

Engineering Symbology, Prints and Drawings

Please click on the above underlined hypertext to view, download or print the document for your study. Because of the large file size, we recommend that you first save the file to your computer by right clicking the mouse and choosing "Save Target As ...", and then open the file in Adobe Acrobat Reader. If you still experience any difficulty in downloading or opening this file, you may need to close some applications or reboot your computer to free up some memory.

Course Summary

Drawing is the universal language of engineering. Drawings from an engineer provide a raw account of the fundamentals that will eventually go into making something useful and necessary, something which may save time, effort, record, or make a thing work. The five common categories of drawings are:

Working with any of these engineering drawings type involves analyzing, making decisions, and processing data. This course provided a good understanding of drawing terminology and knowledge of the view representation, dimensions, tolerances, and other miscellaneous items used on the mechanical devices and piping. Representation of instruments and controllers on P&IDs and piping layout drawings of an industrial plant are also provided.


Once you finish studying the above course content, you need to take a quiz to obtain the PDH credits.

DISCLAIMER: The materials contained in the online course are not intended as a representation or warranty on the part of PDH Center or any other person/organization named herein. The materials are for general information only. They are not a substitute for competent professional advice. Application of this information to a specific project should be reviewed by a registered architect and/or professional engineer/surveyor. Anyone making use of the information set forth herein does so at their own risk and assumes any and all resulting liability arising therefrom.