Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN: 9781337399128
Author: Russell E. Smith
Publisher: Cengage Learning
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Chapter 2, Problem 6RQ
What part do protons and electrons play in the production of electricity?
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What is the difference between true stress/strain and engineering stess/strain? And how do I calculate them?
A rotating shaft of 20 mm diameter is simply supported.
The shaft is loaded with a transverse load of 10 kN as shown in
the figure. The shaft is made from AISI 1095 hot-rolled steel. The
surface has been machined. The shaft operate at
temperature T = 450 °C. Consider a reliability factor of 95%.
Determine
(a) Calculate the reaction forces R, and R₂ (2 points)
(b) Draw the shear force and bending moment diagrams
and determine the maximum bending moment and
shear force. (6 points)
200 mm
20 mm
10,000 N
-50 mm-
A
Not to scale.
(c) Determine the critical location of the shaft and the maximum effective stresses. (3 points)
(d) Calculate the safety factor against yielding. Does the shaft undergo local yielding? (2 points)
(e) Determined the endurance limit, adjusted as necessary with Marin factors. (12 points)
(f) Calculate the fatigue factor of safety based on achieving infinite life. (2 points)
(g) If the fatigue factor of safety is less than 1 (hint: it should be for this problem), then…
(read image)
Chapter 2 Solutions
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
Ch. 2 - All physical objects are composed of __________....Ch. 2 - What is an atom?Ch. 2 - Which of the following is a part of the atom? a....Ch. 2 - What is static electricity?Ch. 2 - Name three ways electricity can be produced.Ch. 2 - What part do protons and electrons play in the...Ch. 2 - Which of the following is the simplest atom that...Ch. 2 - What are the four most important characteristics...Ch. 2 - What is electromotive force?Ch. 2 - Electromotive force is commonly measured in _____....
Ch. 2 - What is current?Ch. 2 - How is current measured? a. amperes b. ohms c....Ch. 2 - What is resistance?Ch. 2 - How is resistance commonly measured? a. amperes b....Ch. 2 - What is electrical power?Ch. 2 - How is electrical power commonly measured? a....Ch. 2 - Where do electrons exist in an atom, and what is...Ch. 2 - True or False: All atoms tend to lose electrons.Ch. 2 - State the law of electric charges.Ch. 2 - What is a proton? Where does it normally exist in...Ch. 2 - Describe briefly the method a dry cell battery...Ch. 2 - What is a conductor?Ch. 2 - Which of the following is the best conductor? a....Ch. 2 - What is an insulator?Ch. 2 - Which of the following is the best insulator? a....Ch. 2 - Why do metals make the best conductors?Ch. 2 - How do electric utility companies charge customers...Ch. 2 - What is the meaning of SEER when used in...Ch. 2 - State Ohms law.Ch. 2 - True or False: Ohms law applies to all types of...Ch. 2 - What is the ampere draw of a 5000-watt electric...Ch. 2 - What is the resistance of the heating element of...Ch. 2 - What is the voltage of a small electric heater if...Ch. 2 - What is the Btu/hour output of an electric heater...Ch. 2 - What is the kilowatt output of an electric heater...
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- (read image)arrow_forward(read image)arrow_forward6: Refer to the figure.Given: W1 = 200 kN/m; W2 = 300 kN/m; L1 = 2 m; L2 = 3 m; L3 = 2 m(a) Calculate the total length L so that the resulting upward pressureq is uniform. (b) draw the shear and moment diagram and determinethe maximum shear, maximum positive and negative bendingmoments.arrow_forward
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