DeGarmo's Materials and Processes in Manufacturing
12th Edition
ISBN: 9781118987674
Author: J. T. Black, Ronald A. Kohser
Publisher: WILEY
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Chapter 14, Problem 65RQ
To determine
The steps involved in plaster molding.
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Multiple Choice
Circle the best answer to each statement.
1. Which geometry attribute deviation(s) can be limited
with a profile of a surface tolerance?
A. Location
B. Orientation
C.
Form
D.
All of the above
2. A true profile may be defined with:
A.
Basic radii
B. Basic angles
C. Formulas
D. All of the above
3. Which modifier may be applied to the profile tolerance
value?
A
B
C.
D. All of the above
4. The default tolerance zone for a profile tolerance is:
A. Non-uniform
B. Unilateral
C. Bilateral equal distribution
D. Bilateral-unequal distribution
5. An advantage of using a profile tolerance in place of a
coordinate tolerance is:
A. A bonus tolerance is permitted.
B. A datum feature sequence may be specified
C. A profile tolerance always controls size
D. All of the above
6. The shape of the tolerance zone for a profile tolerance is:
A. Two parallel planes
B. The same as the true profile of the toleranced
surface
C. Equal bilateral
D. Cylindrical when the diameter symbol is speci-
fied…
One thousand kg/h of a (50-50 wt%) acetone-in-water solution is to be extracted at 25C in a continuous,
countercurrent system with pure 1,1,2-trichloroethane to obtain a raffinate containing 10 wt% acetone. Using the
following equilibrium data, determine with an equilateral-triangle diagram:
a- the minimum flow rate of solvent;
b- the number of stages required for a solvent rate equal to 1.5 times minimum, and composition of each
streamleaving each stage.
c- Repeat the calculation of (a) and (b) if the solvent used has purity 93wt% (4wr% acetone, 3wt% water
impurities)
acetone water
1,1,2-trichloroethane
Raffinate. Weight
Extract. Weight
0.6
0.13
0.27
Fraction Acetone
Fraction Acetone
0.5
0.04
0.46
0.44
0.56
0.4
0.03
0.57
0.29
0.40
0.3
0.02
0.68
0.12
0.18
0.2
0.015
0.785
0.0
0.0
0.1
0.01
0.89
0.55
0.35
0.1
0.5
0.43
0.07
0.4
0.57
0.03
0.3
0.68
0.02
0.2
0.79
0.01
0.1
0.895
0.005
Chapter 14 Solutions
DeGarmo's Materials and Processes in Manufacturing
Ch. 14 - What are some of the factors that influence the...Ch. 14 - What are the three basic categories of casting...Ch. 14 - What metals are frequently cast into products?Ch. 14 - What features combine to make cast iron and...Ch. 14 - Which type of casting is the most common and most...Ch. 14 - Prob. 6RQCh. 14 - Prob. 7RQCh. 14 - What is the simplest and least expensive type of...Ch. 14 - What is a match plate, and how does it aid...Ch. 14 - How is a cope-and-drag pattern different from a...
Ch. 14 - Prob. 11RQCh. 14 - Prob. 12RQCh. 14 - For what types of products might a loose-piece...Ch. 14 - What are the four primary requirements of molding...Ch. 14 - Prob. 15RQCh. 14 - Prob. 16RQCh. 14 - What is a muller, and what function does it...Ch. 14 - Prob. 18RQCh. 14 - What is a standard rammed specimen for evaluating...Ch. 14 - What is permeability, and why is it important in...Ch. 14 - How does the ratio of water to clay affect the...Ch. 14 - How is the hardness of molding sand determined?Ch. 14 - Prob. 23RQCh. 14 - How does the size and shape of the sand grains...Ch. 14 - Prob. 25RQCh. 14 - Prob. 26RQCh. 14 - Prob. 27RQCh. 14 - Prob. 28RQCh. 14 - Prob. 29RQCh. 14 - Prob. 30RQCh. 14 - What are hot tears, and what can cause them to...Ch. 14 - When might hand ramming be the preferred method of...Ch. 14 - Prob. 33RQCh. 14 - Prob. 34RQCh. 14 - Prob. 35RQCh. 14 - Prob. 36RQCh. 14 - What is stack molding?Ch. 14 - Prob. 38RQCh. 14 - What are the components of green sand?Ch. 14 - Prob. 40RQCh. 14 - Prob. 41RQCh. 14 - Prob. 42RQCh. 14 - What are some of the advantages and limitations of...Ch. 14 - Prob. 44RQCh. 14 - Prob. 45RQCh. 14 - Prob. 46RQCh. 14 - Prob. 47RQCh. 14 - Prob. 48RQCh. 14 - Prob. 49RQCh. 14 - Why do shell molds have excellent permeability and...Ch. 14 - Prob. 51RQCh. 14 - Prob. 52RQCh. 14 - Prob. 53RQCh. 14 - Prob. 54RQCh. 14 - Prob. 55RQCh. 14 - What is the sand binder in the core-oil process,...Ch. 14 - What is the binder in the hot-box core-making...Ch. 14 - What is the primary attraction of the cold-box...Ch. 14 - What is shelf life? How is it different from bench...Ch. 14 - Prob. 60RQCh. 14 - Prob. 61RQCh. 14 - Prob. 62RQCh. 14 - Prob. 63RQCh. 14 - Prob. 64RQCh. 14 - Prob. 65RQCh. 14 - Why are plaster molds only suitable for the...Ch. 14 - How does the Antioch process provide permeability...Ch. 14 - What is the primary performance difference between...Ch. 14 - Prob. 69RQCh. 14 - Prob. 70RQCh. 14 - Prob. 71RQCh. 14 - Describe the progressive construction of an...Ch. 14 - Why are investment casting molds generally...Ch. 14 - Prob. 74RQCh. 14 - What are some of the attractive features of...Ch. 14 - What recent development has made one-of-a-kind or...Ch. 14 - Prob. 77RQCh. 14 - Prob. 78RQCh. 14 - What are some of the benefits of not having to...Ch. 14 - What are some of the ways by which expanded...Ch. 14 - Prob. 81RQCh. 14 - Prob. 82RQCh. 14 - Prob. 83RQCh. 14 - Prob. 84RQCh. 14 - Prob. 85RQCh. 14 - Prob. 86RQCh. 14 - What are the most common single-use mold...Ch. 14 - What are the most common methods of core...Ch. 14 - Although cores increase the cost of castings, they...Ch. 14 - Several of the additive manufacturing processes...Ch. 14 - Additive manufacturing processes can also build...Ch. 14 - Figure CS-14 shows the hitch ball component of a...
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