440 Machine Drawing
dharm
d:\N-Design\Des22-1.pm5
Answers
CHAPTER 1
1. (b) 2. (b) 3. (b) 4. (a) 5. (a)
CHAPTER 2
1. (a) 2. (a) 3. (a) 4. (b) 5. (b) 6. (a) 7. (a) 8. (b) 9. (b) 10. F 11. F 12. F 13. F 14. T 15. F 16. F 17. T
18. F 19. T 20. F 21. T 22. F 23. T 24. F 25. A4 26. First angle 27. 170 × 65 28. once 29. mm 30.
visible 31. Crossing 32. dotes 33. thin 34. Thin lines 35. Thick lines 36. 75° 37. dotted 38. hatching
39. 3:1 40.30 41. above 42. Uni-directional 43. along 44. dash 45. Staggered 46. Capital, standard
47. Spot facing 48. undercut 49. cast steel 50. Chromium steel 51. (a) Across corners (b) cylinder
(c) Diameter (d) Equi-space (e) Hexagonal (f) Material (g) Pitch circle diameter (h) Radius (i)
Tolerance 52. (a) CSK (b) DP (c) GND (d) NOM (e) NO (f) SF (g) SQ (h) SCR 53. (a) CS (b) FS (c)
Grey I (d) HCS (e) ST (f) BRASS 54. (a) cast iron (b) High speed steel (c) spring steel (d) Gun metal
(e) Wrought iron (f) Galvanised iron (g) Mild steel 55. (a) Diameter of 30 mm with 25 mm depth (b)
key way of 8 mm width and 6 mm depth (c) Under cut of width 10 mm and depth 5 mm (d) Neck
of width 4 mm and depth 2 mm (e) Morse taper 2 (f) ACME thread of 10mm nominal diameter 56.
(a) DRILL DIA 15 CSK 20 (b) 6 HOLES, DIA 15 C' BORE DIA 20 DEEP 6 (c) 8 HOLES, DIA 13
EQUIP-SP C'BORE FOR M12 SOCKET HD CAP SCR (d) KEYSEAT WIDE 8, DEEP 6 (e)
DIAMOND KNURL 1 RAISED 45° (f) CARB, HDN AND GND
CHAPTER 3
1. (b) 2. (a) 3. (c) 4. (a) 5. (a) 6. (b) 7. First angle 8. Third angle 9. Parallel 10. Horizontal, top
11. Vertical, normal 12. (a) below (b) left side` 13. (a) below (b) left, front 14. Profile, Normal, side
15. Complexity 16. True 17. False 18. True 19. True 20. False
CHAPTER 4
1. (a) 2. (c) 3. (b) 4. (a, c) 5. True 6. False 7. False 8. True 9. True
CHAPTER 5
1. Nominal diameter, pitch 2. Pitch 3. Lead 4. Single start, multi-start 5.Sharp V 6. BSW 7.
Buttress 8. Square 9. ACME 10. Square 11. ACME 12. Worm 13. 60° 14. Minor, major 15. Half
16. Pitch 17. Thin, incomplete 18. Coupler nut 19. True 20. (c) 21. (d) 22. (c) 23. (a) 24. (b) 25. (a)
26. True 27. True 28. (a) 29. True 30. False 31. Square 32. Eye 33. False 34. False 35. Cap or
dome 36. True 37. False 38. False 39. Allen key 40. Ture 41. False 42. Castle 43. False 44. eye 45.
Key 46. Cotter
CHAPTER 6
1. True 2. False 3. False 4. 1:100 5. False 6. True 7. False 8. True 9. True 10. (a) 11. Clearance 12.
Pin 13. Suspension 14. Thickness, width 15. False 16. False 17. False
