Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Textbook Question
Chapter 6, Problem 23QLP
Most household wiring is made of copper wire. By contrast, grounding wire leading to satellite dishes and the like is made of aluminum. Explain the reason.
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Chapter 6 Solutions
Manufacturing Engineering & Technology
Ch. 6 - Given the abundance of aluminum in the Earths...Ch. 6 - Prob. 2RQCh. 6 - What are the major uses of copper? What arc the...Ch. 6 - What are superalloys? Why are they so named?Ch. 6 - What properties of titanium make it attractive for...Ch. 6 - Which properties of each of the major refractory...Ch. 6 - Prob. 7RQCh. 6 - What it the composition of (a) babbitts, (b)...Ch. 6 - Name the materials described in this chapter that...Ch. 6 - What are the major uses of gold and silver, other...
Ch. 6 - Describe the advantages to using zinc as a coating...Ch. 6 - Prob. 12RQCh. 6 - Why are aircraft fuselages made of aluminum...Ch. 6 - How is metal foam produced?Ch. 6 - What metals have the lowest melting points? What...Ch. 6 - Explain why cooking utensils generally are made of...Ch. 6 - Would it be advantageous to plot the data in Table...Ch. 6 - Compare the contents of Table 6.3 with those in...Ch. 6 - What factors other than mechanical strength should...Ch. 6 - Prob. 20QLPCh. 6 - If aircraft, such as a Boeing 757, are made of 79%...Ch. 6 - Prob. 22QLPCh. 6 - Most household wiring is made of copper wire. By...Ch. 6 - The example in this chapter showed the benefits of...Ch. 6 - If tungsten is the highest melting-point metal,...Ch. 6 - A simply supported rectangular beam is 25 mm wide...Ch. 6 - Obtain a few aluminum beverage cans, cut them, and...Ch. 6 - Beverage cans usually are stacked on top of each...Ch. 6 - Using strength and density data, determine the...Ch. 6 - Plot the following for the materials described in...Ch. 6 - Prob. 33SDPCh. 6 - Give some applications for (a) amorphous metals,...Ch. 6 - Describe the advantages of making products with...Ch. 6 - In the text, magnesium was described as the...Ch. 6 - Prob. 38SDPCh. 6 - Review the technical literature, and write a...
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- What is the resistance R of a length of copper wire whose length = 10 m and whose diameter = 0.10 mm?arrow_forwardd. Define the Curie temperature of metal. What is the Curie temperature of steel in °C and °F? f. During Basic Oxygen Process to manufacture low carbon stainless steel, 1000 kg of cast iron (6% of carbon) will be mixed with 20% of combined household scrap of steel (3% of carbon) and automobile scrap (2% carbon) to generate 1184 kg of final product of high quality stainless steel with 0.1% of carbon and 4% Ni. Calculate: i. The amount (kg) of household scrap and automobile scrap to be added ii. Nickel to be added iii. The total carbon removed (kg) with the slag.arrow_forwardQUESTION TWO The test specimen explained in Question 1(c) maintains the same mechanical properties evEn after the rod is broken down from 8 mm to a 2 mm diameter copper cable. Answer the following concerning a 2 mm diameter copper cable with a length of 10 m to be used in domestic wiring under a voltage of 220V: Explain what is meant by the resistivity of the copper cable. What influences this resistivity ? (i) (ii) Determine the resistivity of the 2 mm copper cable mentioned above when a current of 15 amps is used. (ii1) Determine the electrical conductivity of the copper cable. (iv) Using neat sketches where possible, discuss how the p-n junction of a semi-conductor is formed.arrow_forward
- 1. The resistivity of aluminum is 2.8 x 10-8 Nm. How long (in meters) a piece of aluminum wire 1.0 mm diameter is needed to give a resistance of 4.0 0?arrow_forwardibäi Compared to copper the electrical conductivity of * aluminum is Higher O Lower O Equal O Zero Oarrow_forwardAnswer LETTER F only. Other parts are already solved!arrow_forward
- Write down three types of sacrificial anodes that are widely used for ships in the sea. Draw and indicate changes in the corrosion rate of marine structures according to the depth of sea level.arrow_forwardWhat do you understand by charge stratification? Explain the method of achieving the same with Suitable sketches. Discuss the advantages and disadvantages of charge stratificationarrow_forwardFind the resistance at 20°C of an annealed copper bus bar 3 m in length and 0.5 cm by 3 cm in rectangular cross section. (The resistivity of the copper wire is 1.72 x 1042-m). إجابتكarrow_forward
- 3. The temperature dependence of the resistivity of copper and copper - nickel alloys is shown in the figure below. Explain the reason why the resistivity is increased with Ni amount. What is the residual resistivity? Explain it. t Pres C Cu-3 at.% Ni Cu-2 at.% Ni Cu-1 at.% Ni Cuarrow_forwardlons that are electron deficient are referred to as Answers: A. cations B. anionsarrow_forwardAn ideal capacitor with a capacitance of 90.0 nF is charged up to a voltage of 3.00 V. (i) Calculate the magnitude of charge stored in the capacitor. (ii) Determine the potential energy stored in the capacitor. (iii) The capacitor is disconnected from the battery and is then inserted with a piece of mica of which the dielectric constant is 5.00. Compare the final potential energy to the initial potential energy in the capacitor.arrow_forward
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