PRINT READING for DRAFTING & ENGINEERING DRAWING PAUL ROSS WALLACH 82071
Print reading for
drafting & engineering drawing
Paul Ross Wallach82071
PRINT READING FOR DRAFTING & ENGINEERING DRAWING
Table of Contents
INTRODUCTION 1
BASIC DRAFTING CONCEPTSExercise 1: Identify the drawing type 3Exercise 2: Identify the drawing type 4Exercise 3: Identify the drawing type 5Exercise 4: Identify the drawing type 6Exercise 5: Identify the drawing type 7Exercise 6: Identify the drawing type 8Exercise 7: Identify the drawing type 9Exercise 8: Identify the drawing type 9Exercise 9: Identify the drawing type 11Exercise 10: Identify the drawing type 11Exercise 11: Sectional drawings 12Exercise 12: Geometric terms 14Exercise 13: Two-dimensional geometric
forms 16
Exercise 14: Solid geometric forms 18
DRAFTING CONTROL SYSTEMSExercise 15: Line conventions 20Exercise 16: Line conventions 21Exercise 17: Line convenions 22Exercise 18: Line convenions 23Exercise 19: Dimensioning conventions 24Exercise 20: Dimensioning conventions 25Exercise 21: Dimensioning conventions 25Exercise 22: Dimensioning conventions 26Exercise 23: Dimensioning conventions 26Exercise 24: Dimensioning conventions 27Exercise 25: Dimensioning symbols 28Exercise 26: Dimensioning symbols 29Exercise 27: Tolerances 30Exercise 28. Tolerances 32Exercise 29: Tolerance symbols 34Exercise 30: Geometric tolerancing and
dimensioning symbols – 135
Exercise 31: Geometric tolerancing and dimensioning symbols – 2
37
Exercise 32: Positional tolerancing 38Exercise 33: Surface finishes 40
Exercise 34: Surface control finish symbol 41Exercise 35: Surface control 42
ENGINEERING DRAWING CONCEPTSExercise 36: Planes of projection 44Exercise 37: Descriptive geometry 45Exercise 38: Cartesian coordinate system 46Exercise 39: Thread notes 48Exercise 40: Welding symbols 49Exercise 41: Welding symbols 50Exercise 42: Welding symbols 51Exercise 43: Welding notation 52Exercise 44: Welding notation 53Exercise 45: Gears 54Exercise 46: Gear terminology 55Exercise 47: Plumbing fittings 56
WORKING DRAWINGSExercise 48: Threaded fasteners 57Exercise 49: Cover plate 58Exercise 50: Sealed tubing 60Exercise 51: Sealed cylinder 62Exercise 52: Wheel arbor 64Exercise 53: Arbor spindle 66Exercise 54: Ballpeen hammer 68Exercise 55: Scribe handle 69Exercise 56: Depth gauge 70Exercise 57: Tool vise 72Exercise 58: Hand tap vise 74Exercise 59: Colleted scribe holder 76Exercise 60: C-clamp 78Exercise 61: Gear puller 80Exercise 62: Socket drive handle 82
Select the correct technical term for this drawing.1. auxiliarydrawing2.cabinetdrawing3. cavalierdrawing4.development(pattern)drawing5.diametricdrawing6. isometricdrawing7. isometricsectionaldrawing8.multiview(orthographic)drawing9.perspectivedrawing
10.sectionalcallout
ANSWER:
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Exercise
1IdentIfy the dRaWIng tyPe
Exercise
12 geometRIc teRms
14
15
Exercise
12geometRIc teRms
1. acuteangle
2. angleangle
3. arc
4. center
5. chord
6. circumscribedcircle
7. complementaryangles
8. concentriccircles
9. diameter
10.eccentriccircles
11. equilateraltriangle
12. freecurve
13. inscribedcircle
14. intersectinglines
15. isoscelestriangle
16. obtuseangle
17. parallellines
18. quadrant
19. radius
20. rightangle
21. righttriangle
22. scalenetriangle
23. secant
24. sector
25. segment
26. supplementaryangles
27. tangentline
Identify the geometric terms shown on page 14.
24
Exercise
19 dImensIonIng conventIons
1. architecturaldimension
2. arrowhead
3. dimensionline
4. dualdimensionmm/in.
5. decimaldimension
6. extensionline
7. inch/fractiondimension
8. limitdimension
9. metricdimension
10. numericaldimension
Identify the parts of the dimensions.
8'- 6"
�7
Exercise
31
1. all-aroundprofile
2. angularity
3. atleastmaterialcondition
4. atmaximummaterialcondition
5. circularity
6. circularrunout
7. concentricityorcoaxiality
8. cylindricity
9. diameter
10. flatness
11. parallelism
12. perpendicularity
13. position
14. profileofaline
15. profileofasurface
16. projectedtolerancezone
17. regardlessoffeaturesize
18. straightness
19. totalrunout
Match the symbol to its name.
geometRIc toleRancIng and dImensIonIng symbols – Part 2 (ASME Y14.5)
42
Exercise
35 suRface contRol
1. What is the lay’s directional surface pattern on the angular surface?A. parallelB. straightC. angularD. perpendicular
ANSWER:
2. What is the height of the surface roughness width on the angular surface?A. .05micrometersB. .08micrometersC. 1.6micrometersD. .80micrometersE. 3.2micrometers
ANSWER:
3. What is the waviness height of the angular surface?A. .05micrometersB. .08micrometersC. 1.6micrometersD. .80micrometersE. 3.2micrometers
ANSWER:
4. What is the height of the surface roughness for the inside of the hole’s surface?A. .05micrometersB. .08micrometersC. 1.6micrometersD. .80micrometersE. 3.2micrometers
ANSWER:
5. What is the height of the surface roughness for the top surface of the wedge block?A. .05micrometersB. .08micrometersC. 1.6micrometersD. .80micrometersE. 3.2micrometers
ANSWER:
Answer these questions about the drawing on page 42.
Exercise
35suRface contRol
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Exercise
39 thRead notes
1. What is the “2A” in the bolt’s thread note? A. AmericanStandardExternalThreads B. ASMEstandardthreads C. class2fit,externalthread D. twothreadsperinch
ANSWER:
2. What is the “2B” in the nut’s thread note? A. class2fit,internalthread B. AmericanStandardInternalThreads C. ASMEstandardthreads D. twothreadsperinch
ANSWER:
3. What does the “13” in the thread note represent? A. typeofthreads B. threadsperinch C. lengthofbolt D. lengthofnut E. threadspermillimeter
ANSWER:
4. What does the “1/2” in the thread note represent? A. crestofthreadsininches B. lengthofthreadsininches C. depthofthreadsininches D. majordiameterofthreads E. depthofthreadsinmillimeters
ANSWER:
5. What is the bolt type? A. squarebolt B. hexbolt C. ASMEbolt D. metricbolt
ANSWER:
6. What is the nut type? A. squarenut B. hexnut C. ASMEnut D. metricnut
ANSWER:
Select the correct answers from the standard nut and bolt thread notes.
48
Exercise
40WeldIng symbols
1. back(orbacking)weld
2. bevelgrooveweld
3. filletweld
4. J-grooveweld
5. plugweld
6. squaregrooveweld
7. U-grooveweld
8. V-grooveweld
Identify the welding symbols.
49
1. What is the concave radius in the swivel top (2)?
1/8" 1/4" 11/16" 3/4"
ANSWER:
2. What is the length of the knurling on the handle (1)?
5/16" 21/2" 21/8" 13/8"
ANSWER:
A.B.C.D.
A.B.C.D.
3. How is the swivel top (2) attached to the handle (1)?
threadedpeenedsolderedwelded
ANSWER:
4. What do the letters F. A. O. mean?
FinishedAllOverFaceAllowanceOffsetFilletAssembledand
OiledFlangeAlloyOriented
ANSWER:
A.B.C.D.
A.B.C.
D.
5. What is the diameter of the hole through the swivel top (2)?
.09"1/8"3/16"5/8"
ANSWER:
6. What is the spherical radius of the clamping head (3)?
16"1/4"3/16"1/2"
ANSWER:
A.B.C.D.
A.B.C.D.
Answer these questions about the drawing above.
Exercise
55scRIbe handle
69