Thinking Like an Engineer: An Active Learning Approach (4th Edition)
4th Edition
ISBN: 9780134639673
Author: Elizabeth A. Stephan, David R. Bowman, William J. Park, Benjamin L. Sill, Matthew W. Ohland
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 4, Problem 4RQ
- 4. Which of the following sentences is the best example of good technical writing?
- A. A water hammer happens when a surge in pressure reaches the end of a pipe; since water is incompressible below the saturated liquid/vapor line, the momentum is stopped over a short distance and the resulting forces are large.
- B. A surge in water pressure can cause a large force. This force, called a water hammer, will cause the pipes to fail, if left unchecked.
- C. A water hammer can easily break steel pipes.
- D. A surge in water pressure can cause a large force. This force, called a water hammer, can result in amazing failures. It is one of my favorite modes of failure.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Are you as strong as a horse?
Purpose: To understand the concept of work and power and to calculate the power
generated by yourself or a friend.
Materials: A tape measure, stairs, and a stopwatch, cell phone, or wristwatch.
Key Physics Concept: Power is the rate of doing work. Power can be calculated by
dividing the work done by the time it takes to do the work; in this case we will do work
against gravity on a stair case (you may add your power in doing pushups to test your
arm power). Can you guess what your peak horsepower is?
You may do the stairs one at
at time or multiple stairs at a
a time; whatever is most safe
and efficient for you.
Procedure:
Observations:
Analysis:
Conclusions:
Application:
1. Will your hp change if you performed the activity for a longer duration (for example,
climbed the CN tower staircase)? In what way? Explain.
2. Research the horsepower generated by a car. How does the average person's peak
power rating compare to it? How many average people would it…
5) In class, we showed that the temperature increases when gas is used to fill a tank. In
words a non-scientist and non-engineer family member or friend would understand, explain why
this happens. I encourage you to actually explain this to someone you know!
help! please write the correct answer. no long explanation needed! upvote will be given!
Mechanics of Deformable Bodies
A closed cylindrical vessel contains a fluid pressure of P (Mpa). The cylinder has an inside diameter, d (m) and a wall thickness, t (mm) made of steel alloy with yield strength of 340 Mpa. What is the maximum allowable pressure (MPa) if d = 2.50 m and t = 31.8 mm using a factor of safety of 2.5? (2 decimal places)
Chapter 4 Solutions
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
Ch. 4 - 1. When thinking about how you will phrase things...Ch. 4 - 2. Which statement is NOT good advice for...Ch. 4 - Prob. 3RQCh. 4 - 4. Which of the following sentences is the best...Ch. 4 - In researching a topic, which method is NOT a good...Ch. 4 - 6. When writing a memo or short report, where...Ch. 4 - 7. When writing a memo or short report, where...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- 2) Which of the following statement is true pertaining to fluid mechanics? a. Fluid is a substance which do not deforms continuously or it flows continuously when it is subjected to a tangential shear stress b. Aerodynamics deals with the flow of burned gases over bodies such as aircraft, rockets, and automobiles at high or low speeds c. Gas dynamics deals with the flow of fluids that undergo significant density changes, such as the flow of gases through nozzles at high speeds. It deals with the flow of fluids that undergo significant density changes, such as the flow of gases through nozzles at high speeds. It deals with the flow of fluids that undergo significant density changes, such as the flow of gases through nozzles at high speeds. d. Hydrodynamics is the study of the motion of fluids that can be approximated as compressible.arrow_forwardScenario 1:You work as a design engineer in SpaceX which is a space exploration company that produces re-usablespace rockets. Space rockets in the past used to be disposable, the fact that they only serve for one timethen get lost in the space. SpaceX proposed a re-usable rocket, that can go to outer space, deliver someequipment, satellites, or even people to the outer space, and get back to earth to land again in a specifiedparking point. Where it can be re-fuelled, go through careful maintenance, and go through anotherjourney again. You are regularly requested by your manager to provide technical reports andtheoretical explanations about the main components and operational concepts related to these spaceshuttles. [https://www.spacex.com/]Task 1:Concerned with the number of maintenance visits the rocket can undergo before being out of service, you havebeen informed that the recent statics show a that after the first journey to the outer space, the rocket was sentto service once, and…arrow_forward5. A human being has an average venous blood pressure of 12 mm Hg (Hg = mercury). The density of Hg (mercury) is 13,530 kg/m3. How high does a saline bag have to be raised to just barely equal to that of the blood in the vein) of saline through a line and needle inserted into a person's vein? The density of saline is 1020 enable the flow (that is, the pressure of the saline at the needle kg/m3.arrow_forward
- Indicate whether the statement is true or false. a. Air is compressible b. Oil is compressible c. The term kPa is used for standard calculations. An object weighs 8000N. What is its mass? A cylinder with a diameter of 100mm is loaded with a force of 35kN. What is the pressure (in kPa) inside the cylinder? A cylinder with a diameter of 200mm is loaded with a force of 40kN. What is the pressure (in kPa) inside the cylinder? An oil has a specific gravity of 0.87. What is its specific weight? (Water has a specific weight of 62.4 lb / ft3 ) Oil flows at a velocity of 5 m/s through a conduit with an ID of 25mm. Determine the flow rate. A cylinder with a bore diameter of 150mm and a rod diameter of 45mm is to be used in a system with a maximum pressure of 17,000kPa. What are the maximum extension and retraction forces? For the following system: Input diameter = 1 in, output diameter = 2.5 in, input force = 250 lb. Calculate the output force and calculate how far we need to move the input…arrow_forward1. A leaky 8 lb bucket is lifted from the ground into the air by pulling in 20 ft of rope at a constant speed. The rope weighs 0.09 lb/ft. The bucket starts with 3 gal of water (24 lb) and leaks at a constant rate. It finishes draining just as it reaches the top. How much work is spent raising the bucket, water and rope?arrow_forwardTask 1: Consider a simplified shape of a blood vein branching- similar to the Brachial vein. You like to determine whether this person is having a hypertension (high blood pressure) or a hypotension by determining the pressure in the main vein. Note that a nominal value for the normal pressure for that specific vein is 140 mmHg. If the found value is higher, we can consider the person to be hypertensive. Assume a blood density of 1050 [kg/m³] and a viscosity of 3.5 [Pa.s] Is this a hypertension case? (i.e., is the pressure in the main vein P1 > 140 mmHg? What is the classification of the flow in the main vein, rı = 7.5 mm? (laminar or turbulent)? Show your work. P3 =l.5KPA G=4 mm そ:004 % ri=7.5 mm 2= 3 mm *= 0.02arrow_forward
- 2a. Define pressure in a gas (words and equation) and show that 1 pascal = 1 kg/m∙s2.b. The pascal (Pa) is often an inconvenient measure of the pressure, so we often use kilopascals (kPa), atmospheres (atm), or pounds per square inch (psi). What is 1 atmosphere (1 atm) in kPa and in psi?arrow_forwardQ4. (Punctuation) Add commas where necessary. 1. a. We enjoyed the city where we spent our honeymoon. b. We enjoyed Mexico City where we spent our vacation. a. One of the most useful materials in the world is glass which is made mainly 2. from sand, soda, and lime. b. The glass which is used in windows is different from the glass which is used in eyeglasses. 3. a. You don't need to take heavy clothes when you go to Bangkok which has one of the highest average temperatures of any city in the world. b. Bangkok where my father was born is known as the Venice of the East. 4. a. Mr. Trang whose son won the spelling contest is very proud of his son's achievement. b. The man whose daughter won the science contest is also very pleased and proud. 5. a. I watched some beekeepers collect honey. They told me that beekeepers who wear protective clothing can avoid most bee stings. b. A person who doesn't wear protective clothing can get hundreds of bee stings within a minute.arrow_forwardGood day. I am trying to review for examinations and require assistance for these questions... Horse Power: An amount of work performed is 11,500ft-lb per seconds. How much hp is expended in this case? Piston Displacement: A four-cylinder aircraft engine has a total displacement of 275 cu. in. What is its cylinder bore or diameter if each of the four cylinders has a stroke of six inches? Compression Ratio: If there are 243 cubic inches of space in the cylinder when the piston is at the bottom and there are 27 cubic inches of space when the piston is at the top of the stroke. Find CR and V1 (Litre). **Would appreciate a detailed explanation. Thank you so much.arrow_forward
- A lead block is suspended from your hand by a string. The reaction to the force of gravity on the block is the force exerted by: O the block on the string. the string on the hand. O the block on Earth. O the string on the block. none of the given choicesarrow_forward3. A stone is dropped from the top of a building and hits the ground 7seconds later. How tall is the building?arrow_forward1- deforms the shape of fluid. 2- The physical variable is expressed quantitatively and can be measured by 3- The type of flow in which the fluid properties like velocity, density, pressure, ... etc, at a point do not change with time is called 4- When the fluid particles move in a zig-zag way and the eddies formation takes place this type of flow is called 5- In an through the rotor of the turbine and the pressure change occurs only in the nozzles.If the diameter of a circle is 10 cm, the area of the circle is m2. turbine, the pressure of liquid does not change while flowing 6- In an process, the temperature remains constant. 7- When the heat transfer into the system, it take the, sign. 8- The energy equation is for closed system state that Energy Supplied = 9- A 1kg/s of water inters a tube of 5 cm diameter. If the outlet radius is 10 cm, the mass flow rate at the outlet is 10- - transfer heat from low to high temperature stages by using mechanical work.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University Press
Mechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSON
Thermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEY
Mechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage Learning
Engineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
Work, Energy, and Power: Crash Course Physics #9; Author: CrashCourse;https://www.youtube.com/watch?v=w4QFJb9a8vo;License: Standard YouTube License, CC-BY
Different Forms Of Energy | Physics; Author: Manocha Academy;https://www.youtube.com/watch?v=XiNx7YBnM-s;License: Standard Youtube License