Textbook Solutions

PART 1 BASIC DRAWING AND DESIGN

Chapter 1. Engineering Graphics as a Language . . . . . . . . . . . . . . . . . . . . . . . . 1
2. Computer-Aided Drafting (CAD) . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3. Drawing Media, Filing, Storage, and Reproduction
(No problems for this chapter)
4. Basic Drafting Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
5. Applied Geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6. Theory of Shape Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
7. Auxiliary Views and Revolutions . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8. Basic Dimensioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
9. Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

PART 2 FASTENERS, MATERIALS, AND FORMING PROCESSES

Chapter 10. Threaded Fasteners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
11. Miscellaneous Types of Fasteners . . . . . . . . . . . . . . . . . . . . . . . . . . 78
12. Manufacturing Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
13. Forming Processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

PART 3 WORKING DRAWINGS AND DESIGN

Chapter 14. Detail and Assembly Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
15. Pictorial Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
16. Geometric Dimensioning and Tolerancing . . . . . . . . . . . . . . . . . . 153
17. Drawings for Numerical Control . . . . . . . . . . . . . . . . . . . . . . . . . 177
18. Welding Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
19. Design Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

PART 4 POWER TRANSMISSIONS

Chapter 20. Belts, Chains, and Gears . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
21. Couplings, Bearings, and Seals . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
22. Cams, Linkages, and Actuators . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

PART 5 SPECIAL FIELDS OF DRAFTING

Chapter 23. Developments and Intersections . . . . . . . . . . . . . . . . . . . . . . . . . . 222
24. Pipe Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
25. Structural Drafting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
26. Jigs and Fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
27. Electrical and Electronics Drawings . . . . . . . . . . . . . . . . . . . . . . . 253

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Chapter 1

7. Automotive, aerospace, engineering, and manufacturing

would be acceptable answers. Students should be able to
discuss and explain their answers.

Unit 2–2
8. A CAD system consists of two major components: hard-
ware and software. Hardware consists of the computer
system, graphics display, input devices, output devices,
and other specialized equipment.
9. Graphics user interface (GUI).
10. CAD workstations are usually either high-end PCs or
ASSIGNMENT UNIX-based graphics systems.
2 3 4 11. The basic input device is the keyboard. Workstations also
A 104 4.10 4′-11⁄2 include a two- (or more) button mouse. Specialized devices
can also be used, including tablets, mouse-type devices,
B 69 2.70 2′-111⁄2
and 3-D scanners.
C 26 1.04 1′-01⁄2 12. Printers and plotters are the two most common output de-
D 28 1.10 1′-1 vices. Other output devices can create photographic im-
E 7 .28 0′-31⁄2 ages, and some can create 3-D objects from CAD data.
F 19.5 .36 0′-41⁄2 13. Operating systems are software that controls the function
G 42 13
⁄16 33⁄4 of the system’s hardware and allocates system resources,
such as memory and disk space.
H 102 2 8
14. CAD applications programs.
J 130 29⁄16 101⁄2 15. Network interface card (NIC).
K 82 15⁄8 7 16. Students should name one of the following: fixed hard
L 155 17⁄32 47⁄8 drives, RAIDs, Zip, Jaz, DLT, CD, or DVD.
M 45 3
⁄8 11⁄2 17. The most common type of utility programs are those that
protect the system from unwanted intrusion or damaging
N 80 1.25 2′-6
viruses.
O 582 9.20 18′-4 18. Backing up files helps to prevent the loss of data and infor-
P 500 7.90 15′-9 mation that would be costly and time-consuming to replace.
Q 370 2.95 5′-10 19. Viruses have the potential to corrupt and destroy all data
R 280 2.20 4′-5 and programs on a workstation.
S 75 .60 1′-3 20. Gigabyte ⫽ 230 (or 1,073,741,824) bytes; megabyte ⫽ 220
(or 1,048,576) bytes, or 1000 kilobytes.
T 30 .24 0′-5
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21. CAD packages provide file manipulation, object and entity
U 650 5 ⁄8 6′-10 creation, entity modification such as scaling, control of dis-
V 1850 27⁄8 3′-101⁄2 play and work environments, analysis of mass properties
W 1250 113⁄16 2′-5 (volume and mass), definition and generation of output,
X 1125 13⁄4 2′-41⁄2 and utilities for file recovery, translation, and verification.
Y 1200 17⁄8 2′-61⁄2 Unit 2–3
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Z 5900 9 ⁄4 12′-41⁄2 22. LAN refers to a local area network, whereas WAN stands
for wide area network, i.e., a widely dispersed geographi-
cal area.
Chapter 2 Computer-Aided Drafting (CAD) 23. Engineers at different locations can view and discuss de-
Unit 2–1 sign problems and solutions.
1. The term CAD (computer-aided drawing)—some engineers
prefer computer-aided design—refers to a family of com- Unit 2–4
puter-based technologies that are used to create, analyze, 24. Manufacture parts in a machine shop.
and optimize engineering design. 25. The ultimate goal of CIM is paperless engineering.
2. The acronym CAD is often paired with CAM, as in Students might say that it will never work because engi-
CAD/CAM, to reflect the close ties between drafting and neering processes are too complex. Students may also
manufacturing. provide case studies where CIM centers are able to reduce
3. Student answers should reflect their roles as members of paper through increased use of electronic communications,
the overall engineer-technical team, the use of computers, e-mails, attachments, and the Internet.
and reaching for success by achieving team goals. 26. Students may answer that there are those who believe au-
4. Students may answer any two of these: input and manipu- tomation reduces employment opportunities. Automation
late 2-D and 3-D geometry, create engineering drawings, do also allows for materials handling of hazardous manufac-
calculations, and provide drawings of parts and assemblies. turing operations, thus reducing the possibility of workers
5. High-speed networking and the Internet. being injured.
6. Students should answer yes and then name a product 27. Students may offer a variety of answers, but the central fo-
made using CIM. cus should be on customer-driven products and services.

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Chapter 4 Basic Drafting Skills 11. 4–1–N

Unit 4–1
10. 4–1–L

12. 4–1–P

10. 4–1–M

4–1–C

Unit 4–1
14. 4–1–R
4–1–B

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Chapter 6

Unit 6–5
18. CONTD 6–5–E

6–5–F

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Chapter 6

Unit 6–7
27. 6–7–A

6–7–B

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