Drawing symbols

Austin, D. G. (1979) Chemical Engineering Drawing Symbols (George Godwin). 

Austin, D.G., Chemical Engineering Drawing Symbols, John Wiley Sons, New York, NY, 1979. 

Problem 3. In this task, students have to show their mental model of well-known copper sulfate compounds by drawing symbols of the involved particles in given models of beakers. The diagram of Problem 3 represents one possible correct answer [9]. Only a few students could provide acceptable mental models for all three items, and more than two-third of the participants made severe mistakes they exhibited many misconceptions (see Fig. 9.6). 

Problem 3 Solid water free copper sulfate ( CuS04) has a white color. If you add some water, dry blue copper sulfate pentahydrate (CuS04 5 H20) is formed. If you dissolve it in water a blue solution appears. Draw symbols of existing particles in these beakers. 

In Chapter 1, we looked at some of the laws and regulations that affect our working environment. We looked at Safety Signs and PPE and how to recognize and use different types of fire extinguishers. The structure of companies within the electrotechnical industry and the ways in which they commimicate information by drawings, symbols and standard forms was also discussed in Chapter 9. 

ANSI/USAS Y32.10-1967 drawing symbols should be used. The electrical designation and descriptions on related pneumatic/hydraulic piping diagrams shall match those on the electrical diagrams. 

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