Fundamentals of Engineering Thermodynamics
8th Edition
ISBN: 9781118412930
Author: Michael J. Moran, Howard N. Shapiro, Daisie D. Boettner, Margaret B. Bailey
Publisher: WILEY
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Chapter 1.9, Problem 55CU
To determine
Whether the statement is true or false “The composition of a closed system cannot change”.
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PROBLEM 10: A sleeve in the form of a circular tube of length L is Nut
placed around a bolt and fitted between washers at each end.
The nut is then turned until it is just snug.
Use material properties as follows:
For the sleeve, as = 21 x 106/°C and Es = 100 GPa
Washer
Bolt
·L·
Sleeve
Bolt head
For the bolt, αB = 10 × 10-6/°C and EB = 200 GPa.
1. Calculate the temperature rise that is required to produce a compressive stress of 25 MPa in the sleeve.
This problem illustrates that the factor of safety for a machine element depends on the particular point selected for
analysis. Here you are to compute factors of safety, based upon the distortion-energy theory, for stress elements at A and
B of the member shown in the figure. This bar is made of AISI 1006 cold-drawn steel and is loaded by the forces
F = 1.100 kN, P = 8.00 kN, and T = 50.00 N·m. Given: Sy = 280 MPa.
B
-100 mm-
15-mm D.
a) What is the value of the axial stress at point A?
b)What is the value of the shear stress at point A?
c)Determine the value of the Von Mises stress at
point A.
P
F
The three steel wires, each of cross-sectional area 0.05 in2, support the weight W. Theirunstressed lengths are 74.98 ft, 74.99 ft, and 75.00 ft. Use E = 29 x 106 psi.1. Find the stress (psi) in the longest wire if W = 1500 lb.2. Determine the stress in the shortest wire if W = 500 lb
ANSWERS: 6130 psi; 6930 psi
Chapter 1 Solutions
Fundamentals of Engineering Thermodynamics
Ch. 1.9 - Prob. 1ECh. 1.9 - Prob. 2ECh. 1.9 - 3. The driver’s compartment of race cars can reach...Ch. 1.9 - 4. What causes changes in atmospheric pressure?
Ch. 1.9 - 5. Why are passenger airplane cabins normally...Ch. 1.9 - 6. Laura takes an elevator from the tenth floor of...Ch. 1.9 - 7. How do dermatologists remove precancerous skin...Ch. 1.9 - 8. When one walks barefoot from a carpet onto a...Ch. 1.9 - 9. Why does ocean water temperature vary with...Ch. 1.9 - 10. Are the systolic and diastolic pressures...
Ch. 1.9 - 11. How do forehead temperature strips work?
Ch. 1.9 - 12. How does a pressure measurement of 14.7 psig...Ch. 1.9 - 13. What is a nanotubel
Ch. 1.9 - 14. If a system is at steady state, does this mean...Ch. 1.9 - For problems 1-10, match the appropriate...Ch. 1.9 - Prob. 11CUCh. 1.9 - 12. Describe the difference between specific...Ch. 1.9 - 13. A system is said to be at ___________ if none...Ch. 1.9 - 14. A control volume is a system that
(a) always...Ch. 1.9 - 15. What is the objective of an engineering model...Ch. 1.9 - 16. _______________ is pressure with respect to...Ch. 1.9 - 17. A gas contained within a piston–cylinder...Ch. 1.9 - 18. The statement, “When two objects are in...Ch. 1.9 - 19. SI base units include
(a) kilogram (kg), meter...Ch. 1.9 - 20. Explain why the value for gage pressure is...Ch. 1.9 - 21. A system is at steady state if
(a) none of its...Ch. 1.9 - Prob. 22CUCh. 1.9 - 23. Classify items a through g shown on the...Ch. 1.9 - 24. When a system is isolated,
(a) its mass...Ch. 1.9 - 25. The resultant pressure force acting on a body...Ch. 1.9 - 26. The list consisting only of intensive...Ch. 1.9 - 27. Gage pressure indicates the difference between...Ch. 1.9 - 28. Systems can be studied only from a macroscopic...Ch. 1.9 - 29. Kilogram, second, foot, and newton are all...Ch. 1.9 - Prob. 30CUCh. 1.9 - 31. Mass is an intensive property.
Ch. 1.9 - Prob. 32CUCh. 1.9 - 33. Intensive properties may be functions of both...Ch. 1.9 - 34. Devices that measure pressure include...Ch. 1.9 - Prob. 35CUCh. 1.9 - 36. If a system is isolated from its surroundings...Ch. 1.9 - 37. The specific volume is the reciprocal of the...Ch. 1.9 -
Indicate whether the following statements are...Ch. 1.9 - 39. The pound force, lbf, is equal to the pound...Ch. 1.9 - 40. The value of a temperature expressed using the...Ch. 1.9 - Prob. 41CUCh. 1.9 - 42. A closed system always contains the same...Ch. 1.9 - Prob. 43CUCh. 1.9 - 44. A control volume is a special type of closed...Ch. 1.9 - 45. When a closed system undergoes a process...Ch. 1.9 - Prob. 46CUCh. 1.9 - Prob. 47CUCh. 1.9 - 48. A vessel holding 0.5 kg of oxygen (O2)...Ch. 1.9 - Prob. 49CUCh. 1.9 - 50. In local surroundings at standard atmospheric...Ch. 1.9 - Prob. 51CUCh. 1.9 - 52. The Rankine degree is a smaller temperature...Ch. 1.9 - 53. If the value of any property of a system...Ch. 1.9 - Prob. 54CUCh. 1.9 - 55. The composition of a closed system cannot...Ch. 1.9 - 56. Temperature is the property that is the same...Ch. 1.9 - Prob. 57CUCh. 1.9 - 58. The pressure unit psia indicates an absolute...Ch. 1.9 - 1.4 Perform the following unit conversions:
(a) 1...Ch. 1.9 - 1.5 Perform the following unit conversions:
(a)...Ch. 1.9 - 1.6 Which of the following food items weighs...Ch. 1.9 - 1.7 A person whose mass is 150 lb weighs 144.4...Ch. 1.9 - 1.8 The Phoenix with a mass of 350 kg was a...Ch. 1.9 - Prob. 9PCh. 1.9 - 1.10 In severe head-on automobile accidents, a...Ch. 1.9 - Prob. 11PCh. 1.9 - 1.12 A spring compresses in length by 0.14 in, for...Ch. 1.9 - 1.13 At a certain elevation, the pilot of a...Ch. 1.9 - 1.14 Estimate the magnitude of the force, in Ibf,...Ch. 1.9 - 1.15 Determine the upward applied force, in Ibf,...Ch. 1.9 -
1.16 An object is subjected to an applied upward...Ch. 1.9 - 1.17 A communications satellite weighs 4400 N on...Ch. 1.9 - 1.18 Using local acceleration of gravity data from...Ch. 1.9 - 1.19 A town has a 1-million-gallon storage...Ch. 1.9 - 1.20 A closed system consists of 0.5 kmol of...Ch. 1.9 - 1.21 A 2-lb sample of an unknown liquid occupies a...Ch. 1.9 - Prob. 22PCh. 1.9 - 1.23 The specific volume of 5 kg of water vapor at...Ch. 1.9 - Prob. 24PCh. 1.9 - 1.25 As shown in Figure P1.25, a gas is contained...Ch. 1.9 - 1.26 As shown in Fig. P1.26, a vertical...Ch. 1.9 - 1.27 Three kg of gas in a piston-cylinder assembly...Ch. 1.9 - 1.28 A closed system consisting of 4 lb of a gas...Ch. 1.9 - 1.29 A system consists of carbon monoxide (CO) in...Ch. 1.9 - 1.30 Figure P1.30 shows a gas contained in a...Ch. 1.9 - 1.31 A gas contained within a piston-cylinder...Ch. 1.9 - Prob. 32PCh. 1.9 - 1.33 Figure P 1.33 shows a storage tank holding...Ch. 1.9 - 1.34 As shown in Figure PI.34, the exit of a gas...Ch. 1.9 - 1.35 The barometer shown in Fig. P1.35 contains...Ch. 1.9 - Prob. 36PCh. 1.9 - Figure P1.37 shows a tank within a tank, each...Ch. 1.9 - 1.38 As shown in Fig. PI.38, an underwater...Ch. 1.9 - 1.39 Show that a standard atmospheric pressure of...Ch. 1.9 - 1.40 A gas enters a compressor that provides a...Ch. 1.9 - 1.41 As shown in Figure P1.41. air is contained in...Ch. 1.9 - Prob. 42PCh. 1.9 - 1.43 The pressure from water mains located at...Ch. 1.9 - 1.44 Figure P1.44 shows a tank used to collect...Ch. 1.9 - 1.45 If the water pressure at the base of the...Ch. 1.9 - 1.46 As shown in Figure P1.46. an inclined...Ch. 1.9 - 1.47 Figure P1.47 shows a spherical buoy, having a...Ch. 1.9 - 1.48 Because of a break in a buried oil storage...Ch. 1.9 - 1.49 Figure P1.49 shows a closed tank holding air...Ch. 1.9 - 1.50 The 30-year average temperature in Toronto,...Ch. 1.9 - 1.51 Convert the following temperatures from °F to...Ch. 1.9 - Prob. 52PCh. 1.9 - 1.53 A cake recipe specifies an oven temperature...Ch. 1.9 - 1.54 Does the Rankine degree represent a larger or...Ch. 1.9 - 1.55 Figure P1.55 shows a system consisting of a...Ch. 1.9 - What is (a) the lowest naturally occurring...Ch. 1.9 - 1.57 Air temperature rises from a morning low of...Ch. 1.9 - 1.58 For liquid-in-glass thermometers, the...
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