DeGarmo's Materials and Processes in Manufacturing
12th Edition
ISBN: 9781118987674
Author: J. T. Black, Ronald A. Kohser
Publisher: WILEY
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Textbook Question
Chapter 43, Problem 7RQ
Why is it difficult for most automotive manufacturers to capture precedence relationships among assembly tasks?
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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 43 Solutions
DeGarmo's Materials and Processes in Manufacturing
Ch. 43 - How is conventional automotive assembly different...Ch. 43 - Explain the differences between push vs. pull in a...Ch. 43 - If the available assembly time remains the same,...Ch. 43 - Prob. 4RQCh. 43 - Prob. 5RQCh. 43 - Depending on market demand, assembly lines have to...Ch. 43 - Why is it difficult for most automotive...Ch. 43 - What is the impact of not capturing precedence...Ch. 43 - Explain ergonomic constraints in the context of...Ch. 43 - Prob. 10RQ
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- The 150-lb skater passes point A with a speed of 6 ft/s. (Figure 1) Determine his speed when he reaches point B. Neglect friction. Determine the normal force exerted on him by the track at this point. 25 ft B = 4x A 20 ft xarrow_forwardA virtual experiment is designed to determine the effect of friction on the timing and speed of packages being delivered to a conveyor belt and the normal force applied to the tube. A package is held and then let go at the edge of a circular shaped tube of radius R = 5m. The particle at the bottom will transfer to the conveyor belt, as shown below. Run the simulations for μ = 0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 and determine the time and speed at which the package is delivered to the conveyor belt. In addition, determine the maximum normal force and its location along the path as measured by angle 0. Submit in hardcopy form: (0) Free Body Diagram, equations underneath, derivations (a) Your MATLAB mfile (b) A table listing the values in 5 columns: μ, T (time of transfer), V (speed of transfer), 0 (angle of max N), Nmax (max N) (c) Based on your results, explain in one sentence what you think will happen to the package if the friction is increased even further, e.g. μ = 0.8. NOTE: The ODE is…arrow_forwardPatm = 1 bar Piston m = 50 kg 5 g of Air T₁ = 600 K P₁ = 3 bar Stops A 9.75 x 10-3 m² FIGURE P3.88arrow_forward
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