THINKING LIKE AN ENGINEER W/ACCESS
17th Edition
ISBN: 9781323522127
Author: STEPHAN
Publisher: PEARSON C
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Textbook Question
Chapter 18, Problem 14RQ
For the protection of both the operator of a zero-turn radius mower and the mower itself, several safety interlocks must be implemented. These interlocks and the variables that will represent them are listed shown here:
Interlock Description | Variable Used | State |
Brake switch | Brake | True if brake on |
Operator seat switch | Seat | True if operator seated |
Blade power switch | Bladco | True if blades turning |
Left guide bar neutral switch | LeftNeutral | True if in neutral |
Right guide bar neutral switch | RightNeutral | True if in neutral |
lanolin switch | Ignition | True if in run position |
Motor power interlock | Mot or | True if motor enabled |
For the motor to be enabled (thus capable of running), all the following conditions must be true.
- The ignition switch must be set to Run.
- If the operator is not properly seated, both guide levers must be in the neutral position.
- If either guide lever is not in the neutral position, the brake must be off.
- If the blades are powered, the operator must be properly seated.
Write a function that will accept all of the preceding variables except Mot or, decide whether the motor should be enabled or not, and place true or false in Motor as the returned variable.
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Given:
Pi constant to be used: 3.14159
Capillary tube: radius = 0.02 cm; length = 9 cm; pressure = 0.7 mmHg
Liquid sample: density = 4 ml; time of flow = 4.5 seconds
Ans. the ff questions.
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Case 1: Material system without density and viscosity differences
Though unlikely in real life, in this case, we assume that all of the material in the homogenizer is of the same density and viscosity. Thus, only one set of material parameters are mentioned (density, ρ; dynamic viscosity, μ). The important parameters are listed as follows:
Target quantity : Mixing time, θ
Geometric parameters : Stirrer diameter, d
Material parameters : Density, ρ
Dynamic viscosity, μ
Process-related parameters : Stirrer speed, n
1.1) Write out the relevance list for Case 1.
1.2) Generate the pi-set for this case.
1.3) Write out the appropriate pi (π) numbers from the generated pi-set.
1.4) Identify the established dimensionless numbers from the derived pi (π) numbers.
1.5) Write the possible relationship of the dimensionless numbers for Case 1.
Chapter 18 Solutions
THINKING LIKE AN ENGINEER W/ACCESS
Ch. 18.1 - Create a written algorithm that determines the...Ch. 18.1 - Prob. 2CCCh. 18.1 - Create a flowchart that determines the dose of a...Ch. 18.1 - Create a flowchart that determines the state of...Ch. 18.2 - Prob. 5CCCh. 18.2 - Prob. 6CCCh. 18.3 - Assume the following variables have been defined:...Ch. 18.3 - Prob. 8CCCh. 18.3 - Write a short section of MATLAB code that will...Ch. 18.3 - Prob. 10CC
Ch. 18.3 - Prob. 11CCCh. 18.3 - Assume a user has responded to the question "Do...Ch. 18.3 - Assume a user has responded to the question "Do...Ch. 18.4 - Write MATLAB code to represent the following...Ch. 18.4 - Write MATLAB code to represent the following...Ch. 18.4 - Write a MATLAB function named sumTtUp that will...Ch. 18.4 - Prob. 17CCCh. 18.5 - A device constructed to throw various objects can...Ch. 18.6 - Prob. 19CCCh. 18.6 - Prob. 20CCCh. 18.7 - Write MATLAB code to modify the previous gravity...Ch. 18.7 - Write MAT LAB code using try-catch to ask the user...Ch. 18 - Create a written algorithm and flowchart to...Ch. 18 - The Occupational Safety Health Administration...Ch. 18 - Prob. 3ICACh. 18 - Create a flowchart that represents the following...Ch. 18 - Create an algorithm to classify a given altitude...Ch. 18 - Answer the following questions. a. For what...Ch. 18 - Answer the following questions. a. For what...Ch. 18 - For each task listed, write a single MAT LAB...Ch. 18 - Prob. 9ICACh. 18 - What is stored in variable A after each of the...Ch. 18 - What will be displayed by the following code in...Ch. 18 - Ask users to enter a matrix that could be any size...Ch. 18 - A menu is generated using the following code:...Ch. 18 - A menu is generated using the following code:...Ch. 18 - Write a program using if-elseif-else statements...Ch. 18 - Write a program using switch-case statements that...Ch. 18 - Prob. 17ICACh. 18 - Write a program that asks the user to enter the...Ch. 18 - Prob. 19ICACh. 18 - Assume you are required to generate the menus...Ch. 18 - Assume you are required to generate the menus...Ch. 18 - Prob. 22ICACh. 18 - Assume you are required to generate the menus...Ch. 18 - We go to a state-of-the-art amusement park. All...Ch. 18 - A phase diagram for carbon and platinum is shown....Ch. 18 - Prob. 27ICACh. 18 - Prob. 28ICACh. 18 - Prob. 29ICACh. 18 - The Apple TV is a personal video device created by...Ch. 18 - Prob. 2RQCh. 18 - Prob. 3RQCh. 18 - Create an algorithm to determine whether a given...Ch. 18 - The specific gravity of gold is 19.3. Write a...Ch. 18 - An unmanned X-43A scramjet test vehicle has...Ch. 18 - A rod on the surface of Jupiter's moon Callisto...Ch. 18 - The Eco-Marathon is an annual competition...Ch. 18 - Assume a variable R contains a single number....Ch. 18 - Prob. 10RQCh. 18 - Create a program to determine whether a...Ch. 18 - Create a program to determine whether a given Mach...Ch. 18 - Humans can see electromagnetic radiation when the...Ch. 18 - For the protection of both the operator of a...Ch. 18 - Prob. 15RQCh. 18 - Prob. 17RQCh. 18 - Your function should use polyfit to determine the...Ch. 18 - Prob. 19RQCh. 18 - Prob. 20RQCh. 18 - The variable grade can have any real number value...Ch. 18 - Write a MATLAB program that will allow the student...Ch. 18 - One of the 14 NAE Grand Challenges is Engineering...Ch. 18 - Prob. 25RQ
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