The document discusses different aspects of engineering drawings including: 1. Common sizes for drawing paper include 8.5" x 11", 11" x 17", and 17" x 22". 2. Title blocks contain information about the drawing. 3. Scales are used to shrink or enlarge objects to fit on the drawing paper according to British standards. 4. There are vertical and sloping methods for drawing letters and numbers.

1. DJJ1012
ENGINEERING DRAWING
Class 02

2. DRAWING PAPER Size..

3. Drawing Paper
• ANSI standard measure for
drawing paper was as
follows:
• A. 8.5” x 11”
• B. 11” x 17”
• C. 17” x 22”
• D. 22” x 34”
• E. 34” x 44”

4. TITLE BLOCKSpecial columns that prepared at every drawing
paper to give explaination on about drawing that
drawn in the drawing paper.

5. Title Block

6. SCALEScale help us belittle something large objects or
enlarge something small object fit with drawing
paper when draw.

7. Scale
• Following is scale rate according to BS
standard ( British Standard):
Full Size (1:1)
Size Reduce
1 : 2 1 : 20 1 : 200
1 : 5 1 : 50 1 : 500
1 : 10 1 : 100 1 : 1000
Size Enlarge
2 : 1 20 : 1 200 : 1
5 : 1 50 : 1 500 : 1
10 : 1 100 : 1 1000 : 1

8. Scale
1:2Refer to
Drawing Size
Refer to
Actual Size

9. Scale

10. ALPHABET & NUMBER
There is two methodologies that used in
making letter and number.
• vertical method
• sloping method

11. Vertical Method

12. STEP
Draw horizontal construction line using pencil (H)

13. STEP
Draw second horizontal line with distance 30mm with first line.
30mm

14. STEP
Draw vertical construction line.

15. STEP
Draw second vertical construction line with distance 20mm from first line.
20mm

16. STEP
Start draw your first line Alphabet HB

17. STEP

18. STEP

19. STEP
Draw vertical construction line with distance 5mm using Pencil (H)
5mm

20. STEP
Draw vertical construction line with distance 20mm using Pencil (H)
20mm

21. PRACTICAL TASK 1
Draw Alphabet from A-Z and Number 0-9 vertical method

22. Sloping Method

23. STEP
Draw horizontal construction line using pencil (H)

24. STEP
Draw second horizontal line with distance 30mm with first line.
30mm

25. STEP
Draw an angle construction line using set square 60°.
60°

26. STEP
Draw second angle construction line with distance 20mm from first line.
20mm

27. STEP
Start draw your first line Alphabet HB

28. STEP

29. STEP

30. STEP
5mm
Draw vertical construction line with distance 5mm using Pencil (H)

31. STEP
Draw vertical construction line with distance 20mm using Pencil (H)
20mm

32. PRACTICAL TASK 1
Draw Alphabet from A-Z and Number 0-9 vertical method

33. DISTANCETo avoid occurrence of word mixture that
complicate reader to read.

34. Distance

35. Types Of Lines
http://www.wisc-online.com/Objects/ViewObject.aspx?ID=eng16004

36. Types of Lines
• OBJECT LINE
• CENTER LINE
• CENTER MARK
• HIDDEN LINE
• PHANTOM LINE
• BREAK LINE
• CUTTING PLANE LINE
• VIEWING PLANE LINE
• SECTION LINE

37. OBJECT LINE
• Object or visible lines are used to represent
the outline contour of the object being drawn.
• These line appear as thick, continues line.

38. OBJECT LINE

39. CENTER LINE
• Center lines are use to represent the center of
round cylindrical features, or symmetry of a
feature.
• These lines appear as thin width lines with
alternating long and short dashes.

40. CENTER LINE

41. CENTER MARK
• Center mark are use to represent the center
points of a radius (arc) or circle.
• These marks appear as small crosses at the
center point of a radius or circle.

42. CENTER MARK

43. HIDDEN LINE
• Hidden lines represent edges and outlines that
are invisible features of an object in a
particular view .
• These lines appear as thin-width lines with
short dashes.

44. HIDDEN LINE

45. PHANTOM LINE
• Phantom lines represent the outline of an
adjacent part, show alternate positions of a
moving part, or replace repetitive details such
as gear teeth and threads.
• These lines appear as thin-width lines with
two short dashes between single long dashes.

46. PHANTOM LINE

47. BREAK LINE
• Break lines represent an area of an object that
has been removed for clarity or convenience
• Short break lines appear as short lines within
the object, and long break lines appear as
longer lines that represent a larger portion of
an object that was removed to shorten the
view.

48. BREAK LINE

49. CUTTING PLANE LINE
• Cutting Plane Line represent an imaginary cut
through a part to show a cross section.
• These lines may be a series of long dashes or
two short dashes between a pair of long
dashes.

50. CUTTING PLANE LINE

51. VIEWING PLANE LINE
• Viewing Plane Line represent the direction of
sight used to view a particular feature.
• These lines may be a series of long dashes or
two short dashes between a pair of long
dashes.

52. VIEWING PLANE LINE

53. SECTION LINE
• Viewing Plane Line are used to show where
material has been cut away in a section view.
A cutting plane line or break lines may be use
to exposed the material.
• These lines are drawn using different patterns
to designate various type of materials.

54. SECTION LINE