Mechanical Engineering question and answers for August 13, 2023
- Q An object is initially traveling at a velocity of 12 m/s. Itthen begins to change it’s velocity according to the function?=2.5?+3? v = 2 . 5 s + 3 a...
- Q You are operating a fan with the characteristics shown in thefigure below. The 30 kW fan currently operates continuously at fullspeed with the flow reduced to 90% of its rated...
- Q The propane is contained in a piston-cylinder assembly, whichmaintains constant pressure at 0.2 MPa. If a mixture with a qualityof 0.65 and a total volume of 0.07 m3 is slowly...
- Q Please Using Microsoft Word ProgramReport In General About;HydroDynamic Journal BearingReport Contents:1- Abstract 2- Introduction3- Body of Report 4- Conclusions5- References
- Q Water at a temperature of 80 °C and velocity of 1.2 m/s isflowing parallel to one side of a smooth flat plate. The plate ismaintained at a constant temperature of...
- Q my topic is \"mudguard fender of motorbike\"this is the product i seleted.so i want \" Cost estimation \" for mudguard fender of motorbike
- Q An uninsulated steam pipe with a wall temperature of 140 °Cpasses through a room of quiescent air of 14 °C. The pipe ishorizontal and has an outer diameter of 20...
- Q Rank in order of total heat input (Note: don’t confusewith heat input RATE) and overall size of heat affected zone: GTAW,SMAW, Oxyfuel, laser beam weldingWhat are the advantages of reducing...
- Q In a marine gas turbine unit a high-pressure turbine drives thecompressor, and a low-pressure turbine drives the propeller throughsuitable gearing. The overall pressure ratio is 4/1, and themaximum temperature is...
- Q A 750-g collar can slide along the horizontal rod shown. It isattached to an elastic cord with an undeformed length of 300 mm anda spring constant of 250 N/m. Knowing...
- Q LESSON: Heat transferExplain what the characteristic dimension of x,L,D is fordifferent geometries in calculation of dimensionless numbers(Nu,Re,Gr) in forced and natural Transport.
- Q A gas turbine unit has a pressure ratio of 5/1 and a maximumcycle temperature of 550â°C. The turbine drives the compressor andan electric generator., the mechanical efficiency of the drivebeing...
- Q air behaves as anideal gas with R = 0.287 k J k g K.A compressor operates at steady state and takes in air fromambient 0 kPa, gage and 300 K....
- Q whoto design ram air turbine blade by BEM-based approach
- Q Make a search to introduce the design view point forthe subject of brakes and friction clutches.
- Q A Turbojet-engined aircraft flies at 350m/s at an altitude of9000 m. The pressure at this height is 30 kPa and the temperatureis-32â° C. The pressure ratio of the compressor is...
- Q Determine the quality (if saturated) or temperature (ifsuperheated) of the following: (show details of your answer, notjust write the final answer)a) Water at p=50 kPa, v=1 m3/kgb) Water at p=1.6...
- Q In a gas turbine with two-stage compression and expansion, thetotal pressure ratio is 12. Air enters the compressor at atemperature of 320 K and the turbine at a temperature of...
- Q You are using a silver spoon to stir water that just startedboiling so that you can achieve a more even heat distribution inyour water. The spoon is partially immersed in...
- Q Project Communication Management is of utmost importancein the modern age with an array of technology tools available foruse in projects. You may have had several experiences of projectssuffering due to...
- Q In terms of Engineering Ethics, how and when doconflicts of interest arise? Give an example.
- Q Assignment 5 Directions: Read Chapter 8 of the text. Thisassignment will be divided in two parts (Part A and Part B), butwill be submitted as one document - Make sure...
- Q The distance s(in m) above the ground for a projectile firedvertically upward with a velocity of 4(a) m/s as a function of timet(in s) is given by s=4(a)t-4.(b)t2a= 6 b=9Find...
- Q 7.4 A complex Brayton-cycle power plant usingintercooling, reheat, and regeneration is analyzed using the airstandard method. Air is compressed from State 1 to State 2 using acompressor with a pressure...
- Q Prove that the adiabatic process of an ideal gas in asimple compressible closed system is the polytropic process of n=k( where k is the specific heat rate) by using the...
- Q 1040 steel1.What is the composition of the material? (10P)2.What is the typical applications of the material? (10P)3.What is the most common hardness measurement method for thematerial? What is the hardness...
- Q i need full report about ( nickel and nickel alloys ) pleasewrite about 6 pageshould write reference please help me and write in computernot pen
- Q how I can select the type of lubricant and the lubricationmethod for bearing ?answer it all or leave it for another expert , Use table orcatalog not typing a google...
- Q my topic is \"mudguard fender of motorbike\"this is the product i seleted.so i want \" structural Analysis \" for mudguard fender ofmotorbike
- Q my topic is \"mudguard fender of motorbike\"this is the product i seleted.so i want \" Functional specifications/Requirements \" for mudguardfender of motorbike
- Q my topic is \"mudguard fender of motorbike\"this is the product i seleted.so i want \" Need Reognition \" for mudguard fender of motorbike
- Q I need solving question 2 only?Q1.In an Otto cycle air is compressed from an initialpressure 120 kPa and temperature 350 (K). The cycle has compressionratio of 10. In the constant...
- Q Wind power generation system design;a-) Adopt Rayleigh wind regime.b-) Specify the power factor of the wind turbine.c-) Find the start, stop and nominal speed of the wind turbined-) Calculate the...
- Q A regenerative Rankine cycle operates with inlet conditions of800°C and 5MPa and exhausts to a pressure of 10kPa. A singleopen-feedwater heater is used with an extraction pressure of 0.8MPa. Assume...
- Q The propane is contained in a piston-cylinder assembly, whichmaintains constant pressure at 0.2 MPa. If a mixture with a qualityof 0.65 and a total volume of 0.07 m3 is slowly...
- Q Consider an ideal Rankine cycle modified with the addition of asingle reheat stage. The working fluid is H20. The maximum pressurein the cycle is 10MPa, and the temperature of the...
- Q Steam leaves the boiler of a 100 MW Rankine cycle power plant at400°C and 3.5MPa. The Turbine has an isentropic efficiency of 85%and exhausts at 15 kPa. In the condenser,...
- Q Bruce, a research chemist for a major petro-chemical company,wrote a dense report about some new compounds he had synthesized inthe laboratory from oil-refining by-products. The bulk of thereport consisted of...
- Q How does the processing and structure of glasses affectfracture toughness for1. annealed glass2. silica glass3. pyroceram
- Q Describe the purpose and implication of observability andobserver for a dynamical system, respectively, and in particular,what is their relationship? You may use examples to help explainyour points.
- Q What is critical Mach number? An aircraft design exhibits excessivetransonic wave drag and an unacceptably low Mcrit. Brainstorm fiveways to change the design to improve these characteristics.What is aspect ratio?...
- Q 4. A two-stage cascade cooling system operates between thepressure limits of 1 and 0.1 MPa. Each stage operates on the idealvapor compression cooling system and the refrigerant R-134a is usedas...
- Q - Aluminum and Steel SamplesDog-bone shaped samples Thickness = .003 inches; Width = 4 mm;Length = 8 cm- Polycarbonate Plastic SamplesDog-bone shaped samples Thickness = .015 inches; Width = 4...
- Q For the stress data given below with the nearest error of 1:321738824853713193119a) Construct a frequency distribution table.b) Construct the three types of statistical graphs.c) Determine the (1) Mean, (2) Median,...
- Q Using the principles of motion economy and ergonomcs, discusshow a supermarket checkout can be designed to improve theefficiency and the safety of the cashier
- Q Design a geothermal source power generation system;a) Describe the type of geothermal power plant (Total Flow / Flash / Binary) b) Describe the turbine isentropic efficiencyc) Show the entire cycle...
- Q Wind power generation system design;a-) Adopt Rayleigh wind regime.b-) Specify the power factor of the wind turbine.c-) Find the start, stop and nominal speed of the wind turbined-) Calculate the...
- Q Can u write please what are the gear design process , step bystep
- Q Q1 The crank of a slider mechanism rotates clockwise at aconstant speed of 300 rpm. The crank is 15Q mm and the connectingrod is 60P mm long. Determine: a) Linear...
- Q Methane (CH4) enters a compressor operating at steady state witha mass flow rate of 170 lbm/hr. The methane enters the compressorat p1 = 15 lbf/in2 , T1 = 80ï‚°F and...
- Q Question 1Draw the Mohr’s Circle of the stress element. Determine theprinciple stresses and the maximum shear stresses.Write down the stress components with proper notation andsigns.Determine the radius of the Mohr...
- Q electric current flows through an infinitely long hollowcylindrical copper bar having internal and external diameters of 15mm and 25 mm respectively. The temperature on the bar internal andexternal surfaces are...
- Q A fluidic storage tank has a square cross-section (3m x 3m) anda height of 10m. The tank is half-filled with a fluid with thedensity of 200kg/m3. The tank suddenly develops...
- Q You want to design a magnetic device to keepcupboard doors closed. What are the design consideration? Suggestsuitable materials that may be used.
- Q Please solve it quickly as it is urgentAC and Refrigeration Electrical SystemsNote: Think carefully about Compressor motor control circuit andmain circuit and the components. For diagrams, use Microsoft wordtools and...
- Q With a pressure of 0.4MPa, 2kg of water vapor is contained in acylinder of 0.4m3, and the cylinder is connected to the piston.When keeping the pressure constant and raising the...
- Q Please solve it quickly as it is urgentAC and Refrigeration Electrical Systemsï‚· Write minimum four causes and four remedies against eachfault/problem. Draw a table with two columns and five rows...
- Q a. Describe what produces upper and lower yield point behaviorin teel. What problemcan yield point behavior lead to when rolling sheet metal?
- Q Match the words with the correctdefinition.PerpendicularParallelColinearFixHorizontalDefinitionsDefines a location and size for an entity.Aligns two entities.Defines two entities as 90 degree apart.Defines a line in the X direction.Defines an entity equidistant...
- Q A cylindrical pressure vessel is subjected to an internalpressure of 350psi. The initialdimensions of the vessel prior to pressurization are a diameter of12.00 inches, a length of 24.00inches and a...
- Q -what are the methods of evaluating the layouts ?and diffrencebetween them-what is meant by analytical hierarchy process used in systematiclayout planning evaluation ?how and when to use it?-what is numerical...
- Q Q.1(10 pts) Contrast how the increase in standardisation and standingrules increases the overall expenditure and spending on the productin regards to manufacturing companyifso , how then?
- Q 1. List and discuss the basic things you must do to a machine inthe morning when you are   about to start operating the machine and whenyou also close the day’s...
- Q The rectangular hollow section in this welded assembly has aheight of h=73mm, a width of w=48mm and a length L=592mm. For theweld in this assembly, calculate either the Unit second...
- Q What is Hertz's theory of contact about roller bearing?
- Q 1) Determine unmodified fatigue strength (units = MPa) ofhot-rolled 1030 steel shaft in axial loading for a design life of10,000 cycles. Do not apply any fatigue correction factors. SN__________ MPa2)...
- Q Prob.3) A jet-powered aircraft flies at a speed of 320 m / s atan altitude of 9150 m, where the ambient conditions are 32 kPa and–32 ° C. The pressure...
- Q Describe the meaning of availability?
- Q Prob. 2) A jet powered aircraft flies at a speed of 900 ft / sat an altitude of 20,000 ft, where the ambient conditions are 7psia and 10 ° F....
- Q Predicting Trends in Engine Performancea) Write an expression for bmep in terms of the thermalefficiency, mechanical efficiency, volumetric efficiency, andcombustion efficiency, as well as other engine design parameters.Group terms together...
- Q Prob.1) Consider a combined gas and steam power plant that has anet power output of 450 MW. The pressure ratio of the gas turbinecycle is 14. Air enters the compressor...
- Q A cylindrical storage tank contains liquefied propane under apressure of 1.5 MPa (gage pressure P=1.5 MPa) and is subjected to atorque T=5 kN-m. Knowing that the tank has an inner...
- Q To provide a service to a town, water is taken from a dam and raised to a tank from where it is distributed to the neighborhood. The difference in levels...
- Q Time-Based Preventive Maintenance and Condition-Based PreventiveMaintenance are two methods that are used in maintenance. Explainyour understanding of the application of each and provide threeexamples of each method. In addition, discuss...
- Q A mass (10 kg) is sitting on a table. The coefficients of staticfriction (.5) and kinetic friction (.2). A chain is attached to thebox, frictionless, and is attached to a...
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