Technological advancement and the need for humanity to obtain faster and more efficient processes in all social sectors has caused a strong automation of several jobs that were previously done manually, by workers. The automation of these services, allows a faster, but efficient, more standardized and more economical production. This has hindered the entry of workers into the productive sector, causing major layoffs, competitions and wage cuts. Agricultural countries, such as Brazil, for example, even replace about 300 workers, with only one harvester machine, controlled by software and only one driver. This scenario is worrying for workers, but this only tends to grow and become more and more common in our society.
However, this substitution of human labor for automation is a reality for manual and manual labor, which is not the case for software engineering. Software engineering works with the creation, monitoring, specification and development of software (which are used in automation, including). These processes need to be carried out by human hands, which shows that automation will not negatively affect software engineers, at least at the moment we live in today.
Identify the true statements about checking resistors with an ohmmeter. (Check all that apply.) Multiple select question. When checking resistance in a circuit, there should not be any parallel resistance paths. When checking resistance in a circuit, there should be parallel resistance paths present. The ohmmeter leads are connected across the resistance to be measured. An ohmmeter has its own voltage source.
Answer:
Please find the answer in the explanation.
Explanation: To Identify the true statements about checking resistors with an ohmmeter,
When checking resistance in a circuit, there should be parallel resistance paths present. Because any circuit or resistors to be measured has to be shunted. That is connecting it in parallel so that small amounts of current can pass through the circuit.
The ohmmeter leads are connected across the resistance to be measured. An ohmmeter has its own voltage source.
The ohmmeter makes use of batteries as power source.
Water at 1MPa and 383 K enters a vertical pipe that is 10 m in length. The pipe has a diameter 0.1 m. The mass flow rate of the pressurized water is 1.5 kg/s. The pipe passes through a furnace and heat is transferred from the furnace to the water flowing through the pipe such that at steady state steam at 700 kPa and 873 K exits the pipe. Determine:
a. the rate of enthalpy change between inlet and outlet of the pipe.
b. the rate of change in mechanical energy (kinetic and potential together) between inlet and outlet.
c. the rate of change in total energy between inlet and outlet.
d. the net transfer rate at which heat is transferred to water from the hot furnace.
Answer:
A) 4857 kw
b) 9.1605 Kj/s
c) 4866.161 kw
d) 4866.16 kw
Explanation:
water pressure = 1 MPa
temperature = 383 k
vertical pipe height = 10 m
pipe diameter = 0.1 m
mass flow rate of pressurized water (m) = 1.5 kg/s
A) determine rate of enthalpy change
Δh = h2 - h1
= 3700 - 462 = 3238 kj/kg
enthalpy change = m( Δh ) = 1.5 * 3238 = 4857 kw
attached below is the remaining parts of the solution
From steam table
at inlet : 1 Mpa , 383 k
h1 = 462 kj/kg
Q1 = 0.0015 m^3/kg
z1 = 0 m
at outlet : 700 kPa, 873 k
h2 = 3700 kj/kg
Q2 = 0.574 m^3/kg
z2 = 10 m
When your workplace obtains new materials, you should add them to the chemical list
A 24.3-foot long pipe use to carry solvent through a chemical plant is made of two layers. The inner layer is a one-inch schedule 30 stainless steel (AISI 304) pipe. An outer coating is made of plain carbon steel and is 0.075 inches thick. The hot solvent stream can be assumed to have a constant temperature of 180.0oF as it passes through the pipe. On the outside of the pipe is air at 85.0oF. Given the solvent has a convective heat transfer coefficient of 275 Btu/h-ft^2-oF, while the air has a convective heat transfer coefficient of 140 Btu/h-ft^2-oF.
A. Determine UA and q for heat transfer in this system. (Since the problem is given in English units, your answer should also be in English units)
B. Determine the overall heat transfer coefficients, U; and U., for the pipe.
C. Would your answer change if the two materials were swapped so that the inside material were carbon steel and the outside material of the pipe were made of AISI 304 stainless steel? If so, calculate new values for UA and q. If not, explain why your answer would not change. (Here, assume the dimensions of the inner material (now plain carbon steel) match those of the AISI 304 schedule 30 stainless steel from part A, and the stainless steel is 0.075 inches thick on the outside.)
Sorry man i dont know the answer to this one
Please help me in this assignment.
Why should a firm such as Dell take into account total supply chain profitability when making decisions?
what is a computer device
How many loads can be connected in series per line in a control circuit in which a switch is use as to control the loads?
Answer:45
Explanation:
because i am gay
Select four types of engineers who might be involved in the development of a product such as an iPhone.
computer engineers
hydraulic engineers
geodetic engineers
electrical engineers
chemical engineers
mechanical engineers
civil engineers
manufacturing engineers
computer engineers
electrical engineers
mechanical engineers
manufacturing engineers
Answer:
manufacturing engineer
computer engineer
mechanical engineer
eletrical engineer
A technician has been dispatched to assist a sales person who cannot get his laptop to display through a projector. The technician verified the video is displaying properly on the laptop's built-in screen. Which of the following is the next step the technician should take?
Answer:verify proper cable is hooked between laptop and projector. HDMI ports or 15 pin video output to input.
And laptop is selected to output to respective video output.
Explanation:
Jasmine is a mechanical engineer at ACME Engineering. ACME currently buys most of their industrial parts from Old Guard Industrial, but Jasmine has been unhappy about the quality and price of the parts from Old Guard. Shaun is a sales representative for an up-and-coming parts supplier called Paradigm Parts. Shaun and Jasmine, who had worked together previously, go to the same church, and after the Sunday service, Shaun offers to buy Jasmine lunch to discuss the ways they can work together.
If Jasmine were to claim that she should refuse to have lunch with Shaun because it violates ACME’s code of ethics, this claim would be a(n):_________.
(A) application claim
(B) conceptual claim
(C) factual claim
(D) moral claim
Answer:
(D) moral claim
Explanation:
Ethics is an aspect of philosophy that dwells on the study of morality. Morality on the other hand refers to how right or wrong a given situation or thing is.
When Jasmine who is a Mechanical Engineer in ACME Engineering refuses to have lunch with Shaun, a Sales Representative in another company that her company does not do business with, she has made a moral claim because this claim or decision is based on the rightfulness or wrongness of her actions on the basis of her organizations' principles. This is an ethical consideration and therefore a moral claim.