Microsoft Word - lecnote_fm_engineering drawing

8.3. Steps in Dimensioning There are two basic steps in dimensioning objects, regardless of the type of object. STEP 1: Apply th ...

8.4. Where to Put Dimensions The dimensions should be placed on the face that describes the feature most clearly. Examples of ap ...

Figure 8.5 Simple object We have to make some choices when we dimension a block with a notch or cutout (figure 9.6). It is usual ...

Figure 8.7 Surface datum examples In figure 9.8 we have shown a hole that we have chosen to dimension on the left side of the ob ...

When the left side of the block is "radiuses" as in figure 9.9, we break our rule that we should not duplicate dimensions. The t ...

Figure 8.10 Example of a directly dimensioned hole This drawing is symmetric about the horizontal centerline. Centerlines (chain ...

Review questions Explain the difference among dimension line, extension line and leaders Discuss the purpose of dimensioning ...

CHAPTER NINE MAPPING Objectives: At the end of this chapter, the students should be able to: ♦ Elaborate the differentiate betwe ...

The greatest achievement of this age was the triangulation and topographic mapping of France, directed by the members of the cos ...

9.3. Purpose Map shows information of the locality that is quantifiable; for example: ♦ Used to show or indicate the exact size ...

9.4. Classification of Maps The types of map depend on the size of the map and the purpose of the map. The size of the amp on th ...

is highly summarized. Therefore, they are suitable for drawing the map of a country, continent, world, etc. On The Basis Of The ...

♦ Topical maps:- are maps that are used to show one particular feature of a given place. Eg. Climate map, population density map ...

Figure 9.2 Topical Maps One The Bases Of How The Maps Are Drawn: ♦ Scaled maps ♦ Air photographed maps ♦ Sketch maps ♦ Block ma ...

Sketch map is one that may be utilized in small public health projects and would serve its purpose. It is a map which can be per ...

♦ The North line (direction): It should be drawn close to and parallel with the upper right hand edge of the map sheet. ♦ Symbol ...

♦ Details: such as the total population, number of houses, highest and lowest elevation are also shown if any. This appears on t ...

hand side bottom corner. The remaining space is utilized for making drawings. N.B: Some of the most common conventional symbols ...

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Figure 9.4 Conventional Symbols ...