Questions on engineering

question
engineering, 22.01.2021 15:20
Review the it diffusion models, select two models, then compare and contrast how these models would facilitate a company in the country and business sector of your choice. be sure to state your business sector. then, explain how the it diffusion models may affect it. describe the process of how a non-it senior manager would arrive at the decision to support one it diffusion model over another. list the factors that would have to be considered. determine which model you would choose and explain why.
Answers: 3
question
engineering, 22.01.2021 15:20
A car engine with a thermal efficiency of 33% drives the air-conditioner unit (a refrigerator) besides powering the car and other auxiliary equipment. On a hot (35oC) summer day the A/C takes outside air in and cools it to 5oC sending it into a duct using 2 kW of power input and it is assumed to be half as good as a Carnot refrigeration unit. Find the rate of fuel (kW) being burned extra just to drive the A/C unit and its COP. Find the flow rate of cold air the A/C unit can provide.
Answers: 3
question
engineering, 22.01.2021 15:20
Describe the methods that would allow the use of reinforced polymers to be used in rapid prototyping.
Answers: 3
question
engineering, 22.01.2021 15:20
Two pipes with length, thickness and outer diameter of 4-m, 0.4-cm and 10 cm, respectively, are used for transporting superheated vapor in a manufacturing plant. the pipes with thermal conductivity of 55 w/m. k are connected to each other through two 1- cm-thick flanges of outer diameter 19 cm. the superheated vapor flows inside the pipe at an average temperature of 483 k with a heat transfer coefficient of 180 w/m2 .k. air condition surrounding the pipes has a temperature of 283 k and a convection heat transfer coefficient of 25 w/m2 .k. (a) determine the average outer surface temperature of the pipe, disregarding the flanges. (b) considering the flanges as the fins and using this temperature for the base of the flange, determine the fin efficiency and the rate of heat transfer from the flanges. (40 points)
Answers: 3
question
engineering, 22.01.2021 15:20
For high temperature deformation, the bigger the gran sine, the higher the creep rate. a)-true b)- false
Answers: 3
question
engineering, 22.01.2021 15:20
Consider a 7-truss structure. The cross-section area of all horizontal and vertical trusses is 3 inch^2, while the diagonal trusses have a cross sectional area of 1 inch^2. The truss structure is steel (modulus is 30 Msi). All horizontal and vertical truss members are 5 ft in length. Determine the maximum load P such that the highest stressed bar does not exceed t
Answers: 3
question
engineering, 22.01.2021 15:20
What kind of analysis would be conducted to identify project costs? A. competitive analysis B. customer needs analysis C. financial analysis D. concept analysis
Answers: 3
question
engineering, 22.01.2021 15:20
Thi 1 point Which birds have two toes pointing upwards and two downwards, are known as- Climbing birds a
Answers: 3
question
engineering, 22.01.2021 15:20
The purification of hydrogen gas by diffusion through a palladium sheet was discussed in section 5.3. compute the number of kilo- grams of hydrogen that pass per hour through a 6-mm-thick sheet of palladium having an area of 0.25 m2 at 600oc. assume a diffusion coefficient of 1.7x10^-8 m2/s, that the con- centrations at the high- and low-pressure sides of the plate are 2.0 and 0.4 kg of hy- drogen per cubic meter of palladium, and that steady-state conditions have been attained
Answers: 3
Total questions: 14546050