Mechanical Engineering question and answers for July 03, 2023
- Q Air enters the compressor of an ideal gas refrigeration cycle at17°C and 35 kPa and the turbine at 47°C and 160 kPa. The mass flowrate of air through the cycle...
- Q 1. Explain the Betz’s theorem and various terms in theequation
- Q 1) You are responsible for selecting automobiles that will beused in your company’s fleet and have been asked to determine theenergy consumption of the described vehicles for each of thedriving...
- Q 5a. What is a worm gear reducer?5b. Why is a worm gear extremely quiet and able to toleratesubstantial loads?
- Q Back injuries are very common in humans and are often caused bylifting objects with the legs straight while leaning over; alsoknown as “lifting with the back.†Use the concepts learned...
- Q 1a. What are the different types of speed reducers?1b. What are the factors considered when selecting thereducer?
- Q DayHigh temperature, CLow temperature, C13025232263342342920531196302172518The high and low temperatures of each day in Wichita KS aregiven in Table. (1 pt) (a) Plot the high temperature for 7 days asa function...
- Q Mr smith plans to deposit money in a bank that pays 10% interestper year, compounded daily. what the effective rate of interestwill he receive (a) yearly, (b) semiannually? Answers (a)...
- Q Differentiate between MasterCam and AutoCad.Explain with example.
- Q Provide five examples of how the Internet ofThings (IoT) will influence your career practicing mechanicalengineeringo Explain (in detail and with examples) how life and societywill benefit from this evolution
- Q Oneend of the tailgate is connected to the truck with hinge, andsupported by two cable when being opened. A stack of wood weighingMw is placed on the edge of tailgate....
- Q What is computer Aided Manufacturing (CAM)? Explain thesignificance of CAM.
- Q Explain the pros and cons of an HCCI engine. Why isn’t it aviable engine technology at the moment?
- Q For the flow field ?⃗ = ? + Ω × ? , where ?⃗ and Ω are constantlinear- and angular velocity vectors, use index notation to findits strain rate tensor...
- Q Write answers on here and NOT on paper.1. Provide information on other emission control.•Thermostat Air cleaner systems•Air injection reaction systems•Fuel evaporation control systems•Spark control systems•Others•How has the Trump administration changed...
- Q Write the answer on here and Not on paper.provide information on diesel emission standards,on the past,present, and future.
- Q The bandwidth of a bang-bang position servo is _____. a. smallb. large
- Q Draft angles, skrinkage allowance, section thickness, and sharpnessof corners are amonh the issues that have to be considered whendesigning a part to be made by casting. Discuss each of theseissues...
- Q Three return steam lines in a chemical processing plant enter acollection tank operating at steady state at 5 bar. Steam entersinlet 1 with flow rate of 2 kg/s and quality...
- Q Annealing is a process by which steel is reheated and thencooled to make it less brittle. Consider the reheat stage for a100-mm-thick steel plate (Ï= 7830 kg/m3, c= 550 J/kg·K,k=...
- Q Whyis the clock spring called a spring?
- Q Search the Internet for pertinent information that supports theintegration of unmanned aerial systems into the National AirspacePlan and the Air Traffic Control system.Summarize, describing how ATC Interoperability can be smoothlyintegrated...
- Q True or False: The maximum magnitude of stress due to bendingσmax occurs at the horizontal (x) position that the magnitude ofbending moment M is a maximum.
- Q A pressurised air tank supplies compressed air to a new hybridair engine. When the hybrid engine is not running the absolutepressure in the tank is 320 bar and the temperature...
- Q Discuss the multiple factors which affect/control the maximumdrawing ratio per pass in drawing processes?
- Q In which cases the extrusion of polymers is preferable andwhy?PLEASE RESPOND TYPING BACAUSE I WANT TO COPY IT.
- Q Discuss multiple effects of die angle in extrusion process onthe overall energy consumption process?
- Q Identify any major external and internal forces that you canexpect to be present on the mechanism inside the jigsaw power tool(gears and scotch yoke component). Does turning the blade ortwisting...
- Q The value of eo >>> ei, due the shifting of the neutralaxis during bending. Explain this phenomenon with a sketch.
- Q Describe the steps involved in carrying out investment casting. Useappropriate illustrations to clarify your answers. Compare andcontrast the capabilities and limitations of the investment castingand die casting processes.
- Q Pretend you are a prospector and a blacksmith who wants to makea belt buckle made of iron. (Your pants keep slipping downward andyou have a leather belt, but no buckle.)...
- Q .Create aword-processed, 2-3-paged single-spaced User Manual OR set ofTechnical Instructions based on an electronic or mechanicaldevice/product of your choice.Youare welcome to select computer software but just focus on oneaspect of...
- Q An air-standard dual cycle has a compression ratio of 9.1 anddisplacement of Vd = 2.2 L. At the beginning of compression, p1 =95 kPa, and T1 = 290 K. The...
- Q An air-standard dual cycle has a compression ratio of 9.1 anddisplacement of Vd = 2.2 L. At the beginning of compression, p1 =95 kPa, and T1 = 290 K. The...
- Q Please explain 3 different types of communications.List what are the positive and negatives about the about eachtype of communication and give an example of each type ofcommunication in aviation maintenance.
- Q 1. Does recrystallization eliminate mechanical fibering in aworkpiece? Explain.2. Explain advantages of the cold, warm and hot working ofmetals, respectively.
- Q what are some examples of everyday objects/things thatuse:gas power cyclevapor power cyclerefrigeration cycle
- Q (a)plane has a wing using a NACA 2410 aerofoil. It is an altitude of8000m and has an angle of attack of 5deg. How far could it glide inkm. (4s.f, tolerance...
- Q Cast-cobalt alloys quite common in manufacturing industry.Describe in details about it.
- Q (A)car has a length of 6m and is travelling at speed of 95km/hr. Whatis its Reynolds number?(5s.f , tolerance +/-500)(B) for Concorde SST plane, how far could it actually glide...
- Q (a)Air, which can be assumed to behave as an ideal gas,undergoes a process from 150kPa and 400K to 600kPa and 500K withina piston cylinder. Can this process occur adiabatically? (Thinkabout...
- Q Cinemática
- Q Hi, please help me with this question.What does flank wear depend on and why did a tool that machinedsteel 1020 suffered a flank wear greater than one of the samematerial...
- Q Can you write essay with 300-450 words related to thesekeywords?1-Lock, 2-Friction force, 3-Friction lining-shoe, 4-Bearingring,5-speed gear wheel, 6-Tangential leaf spring
- Q An old wooden telephone pole with a single cross member wasblown off center during a recent storm. To temporarily stabilizethe telephone pole, a repair crew has attached a cable from...
- Q Refrigerant-134a enters an adiabatic compressor as saturatedvapor at 160 kPa at a rate of 2.8 m3/min and iscompressed to a pressure of 900 kPa. Determine the minimum powerthat must be...
- Q What are the weakneses of the following forces in modeling thepiston:1-Constant force2- linear3-1/2 sin wave
- Q CHOCHITO, S.A homemade sweets factory wants to determine thenormal time and standard time for packaging and packaging of itsvariety of products. The following table contains the data about arecent study,...
- Q How Engineering Economy helps engineers for optimizeddecision?
- Q Can there be multiple optimal solutions to an assignmentproblem? How to identify such situations
- Q What do you understand by break down maintenance? Discuss thevarious features of breakdown maintenance management?
- Q Do maintenance management principles have any relevancein the service industry?
- Q Explain the following briefly :RedundancyAvailabilityMaintainability
- Q 670 meter Cubic Cupper ball at 104°C is thrown into a lakewhich is at 19°C determine the amount of heat loss by the ballafter it reaches a thermal equilibrium with...
- Q Air enters the compressor of a regenerative air-standard Braytoncycle with a volumetric flow rate of 60 m3/s at 0.8 bar,280 K. The compressor pressure ratio is 20, and the maximum...
- Q What are suggestions for someone planning to have a total hipreplacement? Comment on the choice of the implant. Explain the mostimportant facts to be considered by the patient. Explain withexamples...
- Q Problem 8.045 SIConsider a regenerative vapor power cycle with two feedwaterheaters, a closed one and an open one, and reheat. Steam enters thefirst turbine stage at 12 MPa, 560°C, and...
- Q The 4 lb particle is subjected to the action of its weight andforcesF1={2i+6j−2tk}lb,F2={t2i−4tj−1k}lb,and F3={−2ti}lb, wheret is in seconds. Determine the distance the ball is fromthe origin 5 s after being...
- Q A tank contains 21 kg of dry air and 0.3 kg of water vapor at30°C and 100 kPa total pressure. Determine(a) The specific humidity(b) The relative humidity(c) The specific enthalpy...
- Q A circular loop which possesses 55 turns is placed in a uniformmagnetic field. The direction of the magnetic field makes an angleof 70 o with respect to the normal direction...
- Q heat is a big concern when machining metal. Heat build-up candestroy the work material, create dimensional problems, and shortenthe life of the cutting tool, which why machining operationsgenerally use some...
- Q Â What you are to do is select a specific material (although the selection does not have to be approved by the Instructor, it cannot be generic [e.g., metal] but instead...
- Q What is BVIDWhat are ways to improve BVID resistance in compositematerials ??
- Q ~THERMODYNAMICS~Design a way to boil water on the surface of the moon. Justifyyour answer.
- Q What is profitability Index? Given the discount rates and thefuture cash flows of each project, which project should they acceptusing Profitability Index?Cash FlowsProject AProject BProject CProject DYear Zero- $ 1,500,000-...
- Q Manufacturing Technology1. The effects of cutting fluids on biologicalconsiderations and the environment.2. Find out method in face milling and end millingoperation.(i) procedure(ii) application3. Summarize the centerless grinding, cylindralgrinding, surface grinding...
- Q Air enters the compressor of an air-standard Brayton cycle witha volumetric flow rate of 60 m3/s at 0.8 bar, 280 K. Thecompressor pressure ratio is 17.5, and the maximum cycletemperature...
- Q CASE STUDY A pilot was taxiing his air-force jet when theejector seat fired, sending him upwards to then crash down onto theairfield, where he died from the impact injuries. Ejector...
- Q An ideal Otto cycle has a compression ratio of 8. At thebeginning of the compression process, air is at 95 kPa and 27°C,and 900 kJ/kg of heat is transferred to...
- Q 1. How does reliability helps in performance of maintenancefunction?
- Q T OR F? Sgen is greater than zero for reversible processCOP of a refrigerator is higher than COP of a heat pumpoperating between the same two reservoirsThe efficiency an irreversible...
- Q Asa CEO in a newly founded company, what are the benefits ofimplementing Current Engineering (Simultaneous Engineering) in yourcompany?
- Q Explain clearly the differences in stacking arrangements of thethree crystal models constructed. Use the planes of atoms tore-create the FCC and HCP crystal structure.a. How can the face-centered cubic and...
- Q I designed a substrate holder for a thermal evaporator for a labI work in, based on the size of our chamber. It is heightadjustable (rod stopping height from falling) with...
- Q Why do the cast iron, carbon steel, and the tempered steel havedifferent behavious about tensile stress-strain, and how would thatbe different?
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