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2552 : 26/2556 : Engineering Drawings : : 1 1 2 3 4 2. 3. 2 1 60
2 45 3 90 4 3
1 Isometric Projection 2 Perspective Projection 3 Oblique
Projection 4 Multiview Projection 4
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1 Isometric 2 Perspective 3 Oblique 4 Multiview 5 0.5, 0.35,
0.25 ()
1 0.5 2 0.35 3 0.25 4 6 50 .. 1 : 5 1 250 .. 2 25 .. 3 10 .. 4 5
.. 7 1 2 3 4 8
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1 2B 2 HB 3 4H 4 F 9 B
1 5 2 10 3 15 4 25 10 D
1 45 2 75 3 135 4 11 A3 1 297 210 2 420 279 3 297 240 4 420 297
12
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4
13 1 2:1 2 1:2.5 3 1:5 4 1:1
14
1 2 3 2 4 15 5:1 1 2 3 4 16
1 150 2 (across corners) 3
4 (across
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corners) 17 ISO (International Standards Organization)
1 (English units) 2 (Western units) 3 (Metric units) 4 (Degrees
and radians) 18 (Drawings) 1 (Edge View) 2 (Intersection) 3
(Surface Limit) 4 19 Third Angle Projection P Top Views
Front View
1 a 2 (Edge View) b
3 (Edge View) c 4 d 20 (Projection)
1 (Orthographic Projection) (Isometric Projection) 2 (Isometric
Projection) 3 (Orthographic Projection) 4 (Oblique Projection) 21
Orthographic Drawing
1
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2
3
4 22 1 (First Angle Projection) 1 2 3 4 23 (
)
1
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3
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4
24
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1 2 3 4 27
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28
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29
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1 F 2 B 3 A 4 A B 30 3
1 1
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2 2 3 3 4 5 31
3
1 25 2 23 3 12 4 13 32
1 2 3 4 33
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1
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34 3
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35 3
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36 3
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37
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38 3
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39 3
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40 3
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41 3
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42 3
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43 3
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44 3
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45 3
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46 3
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47 3
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48 3
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49 3
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50 3
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51 3
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52
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53
1 2 3 4 54 front view top view
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1
2
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4 55 orthographic 1 2 3
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4 56 Orthographic Isometr ic 1 2 3 4 57 1 2 3 4 58 Drawing 3
View? 1 Front View 2 Right Side View 3 Top View 4 Contruction View
59 (Side View) (Front View) ? 1 2 3 4 60 Pictor ial Drawing
Orthographic Drawing 1 2 3 4 61 Orthographic Drawing Pictor ial
Drawing ? 1 2 3 4 62 Orthographic Drawing Pictor ial Drawing ? 1
2
3 4 63 (Auxiliary view) 1 2 3 4
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64 Isometr ic Projection 1 a b, c, d 2 a 3 a b, c, d 4 a b, c, d
65 Isometr ic Drawings 1 a b, c, d 2 a b, c, d 3 a b, c, d 4 a 66 1
75 2 60 3 45 4 30 67 (Oblique) ? 1 5 2 2 3 3 4 4 68 1 Perspective 2
Oblique 3 Trimetric 4 69 Isometr ic 1 2 3 4 70 Pictor ial 1
2 3 3 4 71 1 2 3 4
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72 1 2 3 4 73 1 2 3 4 74 1 2 3 4 75 1 2 3 4 76 ( Isometr ic
drawings) 1 (Oblique drawings) 2 (Pictorial drawings) 3 (Dimetric
drawings) 4 (Perspective drawings) 77 1 8 2 9 3 10 4 12 78 1 2
3
4 79 1 2 3 4 80 A 1.25 E
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1 0.25 2 0.38 3 0.50 4 0.62 81 1 2 3 4 82 1 2 3 4 83 1 20 x 40
Tr 2 S 12 x 2 3 10 M 4 18 M x 1.5 84 1 2 R 30 3 R=30 4 30 R 85 1 2
3 4 86 1 2 3 4
87 1 5 2 16 3 5 16 4 5 16 88 (Section) 1 Full Section
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2 Half Section 3 Broken-out Section 4 Rotated Section 89 1 2 3 4
90 1 2 3 4 91 1 2 3 4 92 1 Broken-Out Section 2 Half Section 3
Offset Section 4 Revolved Section 93 1 2 3 4 94 (views) 1 (Regular
views) 2 (Section views) 3 (Oblique views) 4 (Auxiliary views)
95
1 (Hatch line) 2 (Phantom line) 3 (Cutting plane line) 4 (Free
hand Break line) 96 1 2
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3 4 97 1 2 3 4 98 1 2 3 4 99 1 2 3 4 100 1 2 3 4
