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B) Explain the designation of British Standards for the given steel materials: 525H11 and 222522. (2)
Written clear and understandable , Because English is not my language 3. A) A copper wire...
Written clear and understandable , Because English is not my
language
3. A) A copper wire 20 mm? in cross section and steel wire 30 mm? in cross section both 1 m long are rigidly connected to plates on either side as shown in figure. They jointly shared a load of 8 kN. Young's modulus of steel and copper are 20x10ⓇMPa and 1x10ⓇMPa respectively. Find the forces produced in each rod. P=8kN 1 m Copper wire Steel wire P=8 KN...
Since 2005, the main influence on Australian accounting standards is: a. U.S. accounting standards. b. British...
Since 2005, the main influence on Australian accounting standards is: a. U.S. accounting standards. b. British accounting standards. c. International accounting standards. d. All of the above
2 a) It is given that a carburizing heat treatment of 10-hour duration of a steel...
2 a) It is given that a carburizing heat treatment of 10-hour duration of a steel alloy will raise the carbon content to 0.45 wt% at a point 2.5 mm away from the surface. Compute the time required to get the same concentration at a 5.0-mm position from the surface at the same carburizing temperature for an identical steel alloy (Hint: The diffusion coefficient will be a constant for two identical materials at a given temperature). b) What is the...
DQ4: Setting materials, labor, and overhead standards is challenging. If standards are set to0 low, companies...
DQ4: Setting materials, labor, and overhead standards is challenging. If standards are set to0 low, companies might purchase inferior products and employees might not work to their full potential. If standards are set too high, companies could be unable to offer a quality product at a profitable price and employees could be overworked. The ethical challenge is to set a high but reasonable standard. Assume that as a manager you are asked to set the standard materials price and quantity...
SECTION A Q1. (a) The standards for testing the fracture toughness of materials define the shape...
SECTION A Q1. (a) The standards for testing the fracture toughness of materials define the shape and proportion of the specimens but not their size. Explain why this is and why it is necessary to use specimens of different sizes for these tests. [5 marks] (b) You are testing samples of steel with a yield stress of 1200 MPa. Initial results show that the fracture toughness is 120 MPavm. The specimens are 10 mm thick. Determine whether the specimens are...
Identify each substance as an acid or a base and explain your designation. 1 HNO) а....
Identify each substance as an acid or a base and explain your designation. 1 HNO) а. b. NH) Ga(OH)a) с. d. HC HOan)
1. Consider two materials-Aluminum and Steel. For each of these two materials, consider the surface energy...
1. Consider two materials-Aluminum and Steel. For each of these two materials, consider the surface energy term as follows: Ys 1 J/m2 and ys 2 J/m2. (a) If Aluminum and Steel have no defects of any kind, calculate their fracture strengths. (b) If each of the two materials, contain circular defects of widths 1um and 1mm, calculate their fracture strengths. Discuss the trends that you observe in the calculations for the fracture strengths.
1. Consider two materials-Aluminum and Steel. For...
2 Points Question 7 Cultural relativism is A Judging a culture by its own standards (B...
2 Points Question 7 Cultural relativism is A Judging a culture by its own standards (B judging cultures by the standards of your own culture C having relatives in a culture D similar to the theory of relativity Question 8 ( 2 Points When I visited England for the first time, I went shopping in a grocery store called Sainsbury's with some of the natives. My British friends asked me to get a trolley and to be sure to pick...
Suppose US demand for steel is given by P = 200 – Q; US supply for steel is given by P = 50 + Q/2; International firms c...
Suppose US demand for steel is given by P = 200 – Q; US supply for steel is given by P = 50 + Q/2; International firms can supply as much or as little steel as they want at a price of P = 80. (a) Draw the supply and demand diagrams with and without international trade? (b) What is the market clearing price and quantity if international firms can sell in the U.S.? What about if international firms are...
5. a) Explain the differences in the tensile behaviour of steel, aluminium and mild steel. b) Dra...
5. a) Explain the differences in the tensile behaviour of steel, aluminium and mild steel. b) Draw a stress strain curve for a ductile material on your answer book and mark on the curve Elastic region . Plastic region 0.1% proof strength . Tensile strength .Plastic strain to fracture Elastic energy and plastic energy Young's Modulus
5. a) Explain the differences in the tensile behaviour of steel, aluminium and mild steel. b) Draw a stress strain curve for a ductile...
Written clear and understandable , Because English is not my
language
3. A) A copper wire 20 mm? in cross section and steel wire 30 mm? in cross section both 1 m long are rigidly connected to plates on either side as shown in figure. They jointly shared a load of 8 kN. Young's modulus of steel and copper are 20x10ⓇMPa and 1x10ⓇMPa respectively. Find the forces produced in each rod. P=8kN 1 m Copper wire Steel wire P=8 KN...
2 a) It is given that a carburizing heat treatment of 10-hour duration of a steel alloy will raise the carbon content to 0.45 wt% at a point 2.5 mm away from the surface. Compute the time required to get the same concentration at a 5.0-mm position from the surface at the same carburizing temperature for an identical steel alloy (Hint: The diffusion coefficient will be a constant for two identical materials at a given temperature). b) What is the...
DQ4: Setting materials, labor, and overhead standards is challenging. If standards are set to0 low, companies might purchase inferior products and employees might not work to their full potential. If standards are set too high, companies could be unable to offer a quality product at a profitable price and employees could be overworked. The ethical challenge is to set a high but reasonable standard. Assume that as a manager you are asked to set the standard materials price and quantity...
SECTION A Q1. (a) The standards for testing the fracture toughness of materials define the shape and proportion of the specimens but not their size. Explain why this is and why it is necessary to use specimens of different sizes for these tests. [5 marks] (b) You are testing samples of steel with a yield stress of 1200 MPa. Initial results show that the fracture toughness is 120 MPavm. The specimens are 10 mm thick. Determine whether the specimens are...
Identify each substance as an acid or a base and explain your designation. 1 HNO) а. b. NH) Ga(OH)a) с. d. HC HOan)
1. Consider two materials-Aluminum and Steel. For each of these two materials, consider the surface energy term as follows: Ys 1 J/m2 and ys 2 J/m2. (a) If Aluminum and Steel have no defects of any kind, calculate their fracture strengths. (b) If each of the two materials, contain circular defects of widths 1um and 1mm, calculate their fracture strengths. Discuss the trends that you observe in the calculations for the fracture strengths.
1. Consider two materials-Aluminum and Steel. For...
2 Points Question 7 Cultural relativism is A Judging a culture by its own standards (B judging cultures by the standards of your own culture C having relatives in a culture D similar to the theory of relativity Question 8 ( 2 Points When I visited England for the first time, I went shopping in a grocery store called Sainsbury's with some of the natives. My British friends asked me to get a trolley and to be sure to pick...
5. a) Explain the differences in the tensile behaviour of steel, aluminium and mild steel. b) Draw a stress strain curve for a ductile material on your answer book and mark on the curve Elastic region . Plastic region 0.1% proof strength . Tensile strength .Plastic strain to fracture Elastic energy and plastic energy Young's Modulus
5. a) Explain the differences in the tensile behaviour of steel, aluminium and mild steel. b) Draw a stress strain curve for a ductile...
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