Degarmo's Materials And Processes In Manufacturing
13th Edition
ISBN: 9781119492962
Author: J. T. Black
Publisher: WILEY
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Textbook Question
Chapter 14, Problem 17RQ
What is a muller, and what function does it perform?
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Experiment Data
Take the following data for the syringe injection pump
2/
Inner diameter of syringe barrel: D = 1.5 cm
Inner diameter of the needle shaft of the syringe: d = 0.5 mm
The thread pitch of lead screw: pt = 0.75 mm
Lead screw rotation velocity (rpm): n
Calculations
Liquid injection rate (cm³/hr) Q = pt*n* 60 * * D²/4
Velocity of liquid in syringe barrel (cm/min) v = 4Q/ (60** D²)
Velocity of liquid in syringe needle (cm/min) v₁ = 40/ (60* *d²)
K
Find the rotation velocity of lead screw n and the velocity of liquid in syringe needle if the
required injection dose is
1. 10 cm³ in 3 hours
(continuous injection)
2. 20 cm³ in 12 hours
(discontinuous injection, 5 cm³ each 3 hour, injection time = 1
min).
Discus the rece
Solution
Calculate the liquid injection rate
Q = P₁ xnx60x²
= 0.075xnx60xx1.5
= 7.94n-
cm³
hr
Calculate the velocity of liquid in barrel
V₁ ==
40
60xπx D²
4x7.94n
60xx1.5²
= 0.07ncm
hr
Calculate the velocity of liquid in needle
40
60xπxd²
4x7.94n
60xπx 0.05²
hr…
ducts are made in circular, rectangular or square shapes. From
[air movement, economical, low pressure duct, high velocity,
2. In HVAC-direct expansion system, the central package is divided to
[floor and ceiling.
floor and roof standing,
roof top and vertical,
3. -------
fair vapor pressure,
is load from outdoor surrounding.
appliances, miscellaneous sources, metabolism,
-
none of any one]
4. The magnitude of time lag depends on the materials used to construct the particular wall or
roof, and on their capacity to
[space load, condition space,
ambient conditions, store heat,
none of any one]
5. If the cooling load 5 Ton, outdoor temperature in the catalogue
temperature = 48 °C, the actual cooling load equal -
[50000 BTU/hr, 55000 BTU/hr, 72000 BTU/hr,
27000 BTU/hr,
………….
-point of view.
none of any one]
-
VRF and CCD]
40 °C, actual outdoor
none of any one]
Thermodynamicss
Chapter 14 Solutions
Degarmo's Materials And Processes In Manufacturing
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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 - Cast iron cookware can offer a number of...Ch. 14 - Figure CS-14 shows the hitch ball component of a...Ch. 14 - Prob. 2.1CSCh. 14 - Prob. 2.2CSCh. 14 - Prob. 2.3CS
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