Engineering

A metal is plastically deformed in a tensile test. The starting specimen had a gage length = 2.0 in and an area = 0.50 in^2. At one point during the test, the gage length = 23 in, and the corresponding engineering stress = 25,000 lb/in^2. At another point prior to necking, the gage length 3.0 in, and the corresponding engineering stress = 28,000 lb/in^2. Determine the strength coefficient and the strain-hardening exponent for this metal.

EXPERT ANSWER

In a tensile test on a metal specimen , true strain = 0.08 at a stress = 265 MPa . When true stress = 325 MPa, true strain = 0.27. Determine the strength coefficient and the strain -hardening exponent in the flow curve equation.

In a tensile test on a metal specimen , true strain = 0.08 at a stress = 265 MPa . When true stress = 325 MPa, true strain = 0.27. Determine the strength coefficient and the strain -hardening exponent in the flow curve equation. EXPERT ANSWER

6- Which of following options will you use to install any package in isolated network?

a. rpm -q b. rpm -i c. yum install d. yum -i 7- You are an administrator in AAUP IT_solutions. AAUP has redhat-based network. You want to install an RPM package called “anaconda” on this server. First you want to check if the package is already installed or not. Which of the following commands can …

6- Which of following options will you use to install any package in isolated network? Read More »

2) A program, being executed on a processor, has the following instructions mix: Operation ALU Load Store Branches Frequency 40% 20% 15% 25% Clock cycles per instruction 2 10 4. 3 a) Compute the average clock cycles per instruction b) Compute the percent of execution time spent by each class of instructions c) A designer wants to improve the performance. He designs a new execution unit that makes 80% of ALU operations take only 1 cycle to execute. The other 20% of ALU operations will still take 2 cycles to execute. The designer also wants to improve the execution of the memory access instructions. He does it in a way that 95% of the load instructions take only 2 cycles to execute, while the remaining 5% of the load instructions take 10 cycles to execute per load. He also improves the store instructions in such a way that each store instruction takes 2 cycles to execute. Compute the new average CPI d) What is the speedup factor by which the performance has improved in part c?

EXPERT ANSWER Answer. Let Us First Discuss About Some Theory for this Question. We Know that Performance Equation is given as : CPU Time = Cycle Time * Instruction Count * Average CPI Assuming n different type of Instructions each with count IC and requiring CPI cycles Then, a) Average CPI= sum of (CPI * Frequency) …

2) A program, being executed on a processor, has the following instructions mix: Operation ALU Load Store Branches Frequency 40% 20% 15% 25% Clock cycles per instruction 2 10 4. 3 a) Compute the average clock cycles per instruction b) Compute the percent of execution time spent by each class of instructions c) A designer wants to improve the performance. He designs a new execution unit that makes 80% of ALU operations take only 1 cycle to execute. The other 20% of ALU operations will still take 2 cycles to execute. The designer also wants to improve the execution of the memory access instructions. He does it in a way that 95% of the load instructions take only 2 cycles to execute, while the remaining 5% of the load instructions take 10 cycles to execute per load. He also improves the store instructions in such a way that each store instruction takes 2 cycles to execute. Compute the new average CPI d) What is the speedup factor by which the performance has improved in part c? Read More »

a. Define an array of type unsigned int called values with five elements, and initialize the elements to the even integers from 2 to 10. Assume the symbolic constant SIZE has been defined as 5. b. Define a pointer vPtr that points to an object of type unsigned int C. Print the elements of array values using array index notation. Use a for d. Give two separate statements that assign the starting address of array values e. Print the elements of array values using pointer/offset notation. statement and assume integer control variable i has been defined. to pointer variable vPtr.

EXPERT ANSWER Answer a:int values[5] = {2,4,6,8,10};Explanation:Array values is initialized with 5 even numbers Answer b:int *vPtr;Explanation:vPtr is a pointer to point to an integer object, we must declare it as type int*. The first part int is where we are determining the data type the pointer is pointing to, and the second part * …

a. Define an array of type unsigned int called values with five elements, and initialize the elements to the even integers from 2 to 10. Assume the symbolic constant SIZE has been defined as 5. b. Define a pointer vPtr that points to an object of type unsigned int C. Print the elements of array values using array index notation. Use a for d. Give two separate statements that assign the starting address of array values e. Print the elements of array values using pointer/offset notation. statement and assume integer control variable i has been defined. to pointer variable vPtr. Read More »

Refer to the Iron-Iron Carbide Phase Diagram, T=730C and .5W% C a) What is the relative amount of the alpha(ferrite) phase?b) What is the carbon composition by wt% of the austenite (gamma) phase?c) What are the phases present at this point?

Refer to the Iron-Iron Carbide Phase Diagram, T=730C and .5W% C a) What is the relative amount of the alpha(ferrite) phase? b) What is the carbon composition by wt% of the austenite (gamma) phase? c) What are the phases present at this point? EXPERT ANSWER

Two thermocouples (temperature measurement devices) are tested by inserting their probes in boiling water, recording the readings, removing and drying the probes, and then doing it again. The results of five measurements are as follows:a) For each set of temperature readings, calculate the sample mean, the range, and the sample standard deviation.b) Which thermocouple readings exhibit the higher degree of scatter? Which thermocouple is more accurate?

Two thermocouples (temperature measurement devices) are tested by inserting their probes in boiling water, recording the readings, removing and drying the probes, and then doing it again. The results of five measurements are as follows: Thermocouple A 72.4 73.1 72.6 72.8 73.0 Thermocouple B 97.3 101.4 98.7 103.1 100.4 a) For each set of temperature …

Two thermocouples (temperature measurement devices) are tested by inserting their probes in boiling water, recording the readings, removing and drying the probes, and then doing it again. The results of five measurements are as follows:a) For each set of temperature readings, calculate the sample mean, the range, and the sample standard deviation.b) Which thermocouple readings exhibit the higher degree of scatter? Which thermocouple is more accurate? Read More »

A spherical pressure vessel has an inner diameter of 2 meters and athickness of 10 mm. A strain gauge having a length of 20 mm is attached to it, and it isobserved to increase in length by 0.012mm when the vessel is pressurized.Determine – pressure causing this deformation, max in plane shearstress, and the absolute max shear stress at a point on the outer surface of thevessel.The material is steel, for which Est=200 GPA andvst = 0.3

A spherical pressure vessel has an inner diameter of 2 meters and athickness of 10 mm. Astrain gauge having a length of 20 mm is attached to it, and it isobserved to increase in lengthby 0.012mm when the vessel is pressurized. Determine – pressure causing this deformation, max in plane shearstress, and theabsolute max shear …

A spherical pressure vessel has an inner diameter of 2 meters and athickness of 10 mm. A strain gauge having a length of 20 mm is attached to it, and it isobserved to increase in length by 0.012mm when the vessel is pressurized.Determine – pressure causing this deformation, max in plane shearstress, and the absolute max shear stress at a point on the outer surface of thevessel.The material is steel, for which Est=200 GPA andvst = 0.3 Read More »