ET 122

COURSE DESCRIPTION: (for catalog)

This is an introductory course in engineering graphics. Subject material includes: use of drafting machine, scales, pencils, and angles, orthographic projection, isometrics, obloquies, sectioning, auxiliary views and dimensioning.

PREREQUISITE:

Introduction to AutoCAD Computer Aided Drawing

INSTRUCTIONAL MATERIALS REQUIRED OF STUDENT: (text, supplies, etc.)

Technical Drawing by Giesecke, Mitchell; MacMillan Publishing Co.

LIST THE PERFORMANCE OBJECTIVES OR STUDENT LEARNING COMPETENCIES AS DESCRIBED IN THE INSTRUCTIONAL LEARNING SYSTEM FOR THIS COURSE: 

1. Drafting machine
   1. Students will demonstrate their ability to square scales to the table
   2. Students will demonstrate proper care and maintenance of drafting table
   3. Students will demonstrate proper use of controls and adjustment of controls

    

2. Drafting scales and tools
   1. Students will show ability to read both metric and English scales
   2. Students will demonstrate their ability to operate a bow compass, triangles, mechanical pencils, and templates

    

3. Lettering
   1. Students will demonstrate proper lettering according to ANSI standards
   2. Students will show their ability to choose sizes and place text on a drawing where necessary

    

4. Drawing Line Weight
   1. Students will be able to identify ANSI standard line types such as Hidden, Center, Phantom, etc.
   2. Students will be able to identify ANSI standard line weights
   3. Students will demonstrate their ability to draw thick and thin dark lines with a drafting pencil
   4. Students will demonstrate their ability to place line types correctly on a mechanical drawing

    

5. Dimensioning
   1. Students will demonstrate ability to convert fractional to decimal
   2. Students will be able to identify the difference between Architects scale and Engineering scale
   3. Students will be able to identify the different parts of a dimension and the proper size of each part, i.e. extension lines, dimension line, etc.
   4. Students will show ability to place basic dimensions according to ANSI standards on a mechanical engineering drawing

    

6. Symbols
   1. Students will demonstrate the proper use of symbols such as balloons, title block symbols, counter bore, depth, etc.

GENERAL INSTRUCTIONAL METHODS:

Lecture, discussion, demonstration

EVALUATION PROCESS:

The students will be evaluated on their ability to meet the following expectations of performance with course material demonstrated through weekly drawing projects, minimum of two quizzes, midterm, and final exam.

1. Demonstrate and/or explain usage of a standard drafting machine

    

2. Demonstrate ability to read and use scales and other measuring tools used in drafting practices

    

3. Show ability to identify and produce a drawing using correct ANSI standards in line weight and other drawing practices

    

4. Demonstrate ability to dimension a drawing according to ANSI standards

    

5. Explain symbols on a drawing and recognize when symbols should be applied in a drawing