Mechanical Engineering question and answers for July 05, 2023
- Q 1--Defects of various castings and suggest suitableremedies??2-- Comparisons of quality aspects of metal castingprocesses ??
- Q What is CFD and how can it be used in the study of thermal comfort?â€Not very long answers, and don’t write for handPlzâ€
- Q Discuss the two main types of VAV systems ?â€Not very long answers, and don’t write for handPlzâ€
- Q Â The College of Business and Public Administration at Benton University has a copy machine on each floor for faculty use. Heavy use of the five copy machines causes frequent failures....
- Q Visit a local auto repair operation like walmart or peboys andobserve battery replacement, oil change, jack operation, andgeneral safety on site.Develop a inspection form to assess a work facility.Develop a...
- Q Discuss the topic of exergy what doesit reprsent ? what does theexergy balance tell us ? how can we use exergy analysis ?please type the answer NO HAND WRITING
- Q Artificial Intelligence and CognitivePsychologyHow can you engineer human emotion in artificial intelligence?Do not copy and paste from other websites without giving credit orputting things in quotes. For example, don't say...
- Q For internal combustion engines found that the cycle thermalcffciency would increase with an increase in compression ratio ofthe cycle. Discuss the factors that limit us in taking advantage ofthis fact...
- Q Explain the process of multi-stage compression withinter-eco-ling. is advantage gained by incorporating this processinto a gas cycle? How does adding an inter-cooler thisplese type the answer no hand writing
- Q The efficiency of the Brayton cycle increases with an increasein the pressure ratio across the compressor. What limits our use ofthis tactic to increase cycle efficiency? What trade-offs have tobe...
- Q Construct a sketch to show the working of an airhandler of the blow-through type with cooling andheating coils in series? Clearly label all parts and components andbriefly explain its working?
- Q Air enters the compressor of a regenerative air-standard Braytoncycle with a volumetric flow rate of 100 m3/s at 0.8 bar, 280 K.The compressor pressure ratio is 20, and the maximum...
- Q A mud logger places a sample of calcium carbide in thedrillstring when a connection is made. The calcium carbide reactswith the mud to form acetylene gas. The acetylene gas is...
- Q Draw block diagram of a sun tracking system for a solar powersystem. Also mention the component clearly.Note: give a small description of itsworking.
- Q Stainless Steel spoons are tested after manufacture with eachtest taking 10 minutes. If the plant makes 200,000 units a day andthe quality Page 117-Sep-2018 assurance technologist recommendstesting 1% of them...
- Q The displacement volume of an internal combustion engine is 2.19liters. The processes within each cylinder of the engine aremodeled as an air-standard Diesel cycle with a cutoff ratio of 2.5.The...
- Q What factors, not including thermal mismatch to the substrate,contribute to a change in gauge response as the temperature of thegauge changes?
- Q Pressurized water (pin= 10 bar, Tin= 110°C) enters the bottom ofan L= 10-m-long vertical tube of diameter D= 88 mm at a mass flowrate of mË™â¢= 1 kg/s. The tube...
- Q How do the required CL and AOA for a Piper M350 at 4,000 lbschange with changes in airspeed? (Provide specific examples)What happens if the required CL is larger than CLmaxof...
- Q The spring-loaded piston–cylinder device shown in the figure isfilled with 0.55 kg of water vapor that is initially at 4 MPa and400°C. Initially, the spring exerts no force against the...
- Q A local firm manufactures children's toys. The project demandover the next four months for one particular model of toy robotisMonthWorkdaysForecasted DemandJuly233825August167245September202770October224440Assume that a normal workday is 8 hours. Hiring cost...
- Q If the cells operate with 18% efficiency, and there is nomismatch loss among the cells, calculate the overall moduleefficiency if the round cells are used. Assume a PV Module is...
- Q For liquids, the viscosity decreases as the temperatureincreases. For gases, the viscosity increases as the temperatureincreases. Your objective is to provide an explanation for thesetrends. You may do internet research,...
- Q Wehave a project where we need to incorporate smart technology in aproduct made by a certain brand that we were assigned. We wereassigned Stihl, here is a link to their...
- Q A stainless-steel rod (AISI 304) of length ? = 100[??] andtriangular cross-section is attached between two isothermal heatsinks at ?0 = 50℃. The rod perimeter is ? = 5[??]. When...
- Q 1.       What problems areassociated with oxygen or other gases that are dissolved in moltensteel?2.       What is considered alow-carbon steel? Medium-carbon? High-carbon?can you please type the answer. thanks
- Q What caused the Open Paradigm? Give examples
- Q Examine the following abstract:“In this study, we investigate the behavior of new nano ZrO2 andAl2O3-13 wt.% TiO2 thermal sprayed coatings on commercially pure(cp)-Ti (grade 4) and titanium alloy substrates. Friction...
- Q List the 6 different steps in systematic design process andexplain each step.
- Q just need to find out how to find the new yield point of a metalafter it has been stretched ?give the formula and explain it please
- Q A smooth rectangular duct 300 mm by 400 mm carries air at a rateof 1 m3/s.Take the density of air to be 1.204 kg/m3 and the dynamicviscosity of air to...
- Q Nitrogen can be liquefied using a Joule-Thomson expansioniprocess. This is done by rapidlyl and adiabatically expandign coldnitrogen gas from high pressure to a low pressure. If nitrogen at135 K and...
- Q To obtain monochromatic x-rays from copper one must avoid oreliminate the Kβ to obtain only Kα. One possible method is to usean electron energy above the Kα critical value of...
- Q Design a Matlab program for the Brayton Cycle. The program wouldbe for a standard air cycle. The program should show specific workand thermodynamic efficiency from r=1 to 50, t=1 to...
- Q Uniform internal heat generation at  qË™â¢â€‰= 2.00 × 107W/m3 is occurring in a cylindrical nuclear reactor fuelrod of 50-mm diameter, and under steady-state conditions thetemperature distribution is of the form...
- Q Which of the following is NOT one of the four criteria by whichthe size of a hydraulic reservoir is determined?It must make allowance for dirt and chips to settle and...
- Q Please describe the value associated with momentum and heattransfer analogies and the role of the Prandtl number
- Q Why it is important to study the cost implications of any energysaving measures in industry? What are the ways and means by whichit is carried out?
- Q After full analysis of a solid steel shaft consideringdeflection, strength and vibrations, we come to know that the shaftdesign is limited by deflection, which option as a designer wouldyou pursue,...
- Q Please show steps2.54 Using the ASHRAE Psychrometric Chartcomplete thefollowing table:Dry Bulb, °FWet Bulb, °FDew Point, °FHumidity Ratio,lbv/lbaRelative Humidity, %Enthalpy, Btu/lbairSpecific Volume,ft3/lbair8013.870551007040400.0113.8604040206030850.0128080
- Q Â This TED talk was not only interesting and eye-opening but also scary and thought-provoking. I believe that Sam Haris is doing a great job at introducing these kind of talks...
- Q Do some internet or library research on the water towersin Bryan/College Station area to estimate: a) maximummunicipal water supply pressure (based on water tower dimensions,not water pressure), b) average number...
- Q Â As technology rapidly progresses, the issue with artificial intelligence overwhelms us with many questions. Proponents believe it is the solution to society's most complex challenges but critics argue that it...
- Q Superheated steam at 20 MPa, 640°C enters the turbine of a vaporpower plant. The pressure at the exit of the turbine is 0.5 bar,and liquid leaves the condenser at 0.4...
- Q A ball rolls down from the top of an incline with a height of 5m high without slipping. The ball has a diameter of 0.2m. What arethe ball’s translational speeds...
- Q A nuclear power plant based on the Rankine cycle operates with aboiling-water reactor to develop net cycle power of 3 MW. Steamexits the reactor core at 100 bar, 620°C and...
- Q 2.21 Use IHT to perform the following tasks.(a) Graph the thermal conductivity of pure copper,2024 aluminum, and AISI 302 stainless steel overthe temperature range 300 T 600 K. Includeall data...
- Q In matlab.write a program that converts a numerical date givenby the user into a month, day, and year. Specifically, the usershould input a sequence of eight numbers 05141956.the program should...
- Q If you were given the choice to make the laptop cover of steelorpolymers. Which do you prefer and why?
- Q Review the two videos (1) “Steam Power Plant†and (2) GasTurbine. For each one, identify at least three examples of thedesign for each of the following criteria:1. Energy performance (e.g....
- Q You are designing an aircraft to fly slowly at high altitude, soyou want to minimize induced drag. Which of the followingstatements best describes the likely shape of the wing you...
- Q 1. A flywheel is the shape of a sphere of radius R. Calculatethe stored energy again for rotation time T and total mass M. Donot attempt to use moment of...
- Q In one or two sentences describe the corrosion failure mode.What is one visual cue to indicate corrosion? Does corrosion alwaysnecessitate part replacement?
- Q Uniform internal heat generation at  qË™â¢â€‰= 2.00 × 107W/m3 is occurring in a cylindrical nuclear reactor fuelrod of 50-mm diameter, and under steady-state conditions thetemperature distribution is of the form...
- Q Ifthere are two identical pots of water next to one another and youbring both of them to boiling but remove one from the heatingdevice but keep one of them on...
- Q Say that you are looking to buy a small call and want to get avery efficient car. You are trying to decide between a hybrids carand an electric car. Hyundai...
- Q 1. A 150-kg sewing machine operates at 1200 RPM and hasa rotating unbalance of 0.45 kg-m. What is the max stiffness of anundamped isolator such that the force transmitted to...
- Q use matlab:A cable of length Lc supports a beam of length Lb so that it ishorizontal when the weight W is attached to the beam end. Thetension force T in...
- Q What is the density of ice at 32°F and 1 atm?What is the density of liquid water at 32°F and 1 atm?As pressure increases the boiling temperature of water increasesor...
- Q Find the value of the thermal conductiviity of the followingsubstance at the given conditions:AISI 316 Stainless Steel at 300K
- Q Work is aa) point functionb) path functionc) depends on the stated) none of the mentioned
- Q 1A. Which equilibrium phase on the Fe-Fephase diagram changes to Martensite when cooled quicklyenough?A. Austenite B. Ferrite C. Bainite D. Cementite1B. For a tapered cross section metal bar that contracts...
- Q Inventory and supply chain management
- Q For the following, explain what each of them will do in MatLabby saying what the command does and what the result is. Forexample, if the command is >>x(2:end, 1:3) then...
- Q Please provide the answers inclear wayA company is planning to install a new automated plastic-moldingpress. Four different presses are available. The initial capitalinvestments and annual expenses for these four differentalternatives...
- Q Â Technology that performs at the level of superhuman intelligence and beyond already exists. As Harris explained, even with a machine that performs at the level of humans or a group...
- Q Fourier Series Approximation Matlab HW1:   You are given a finite step function  x(t)=-1, 0<t<4        1, 4<t<8.         Hand calculate the FS coefficients of x(t) by assuminghalf- range expansion,  for each case below and...
- Q Hi, I'm currently writing a Matlab program to simulate theApollo 11 trajectory. Now I want to plot a 3D animated orbit whichis a 60 by 58 nautical miles orbit. Can...
- Q A single thread power screw is 36 mm in diameter with a pitch of6 mm. A vertical load on the screw imposes a force of 9 kN. Thecoefficients of friction...
- Q Provide two good reasons machine age thinking doesn’t work wellfor systems of any appreciable complexity
- Q Why are good systems operational requirements and a maintenance& support concept important?
- Q the sources of energy loss contained in fluid power system canincludeA)fluid viscosityB)the configuration of valves and fittingsC)piping materialsD)all of the above
- Q Determine the phase description of each the following substances.You may choose 1) \"Subcooled or compressed liquid\", 2) \"Saturatedfluid or saturated mixture\", 3) Superheated vapor or superheatedgas. a) Water 101kPa &...
- Q Use Laplace transformations to solve the following differentialequations:dy(t)/dt + a y(t) = b; I.C.s y(0) = cd2y(t)/dt2 + 6 dy(t)/dt + 9 y(t) = 0; I.C.s y(0) = 2, dy(0)/dt...
- Q Calculate the heat of combustion and the stoichiometric fuel toair ratio (mass and molar) for 1) Methane and 2) Octane. Comment onwhether the assumption of f<<1 is valid for theseconditions.
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