Mechanical Engineering question and answers for July 17, 2023
- Q Use Matlab and write entier scriptProblem 1.Using the information above, find y(n) for all n between1:N.y(tn)=mx(tn)+b+r(tn)y=mx+bPlot the points on a graph, without connecting them with aline.  Use a command like:plot(...
- Q use newton raphson method to solve the following system ofnonlinear equationsx1^2+x2^2=50 ; x1*x2=25stop after three iterations. initial guess : (x1,x2) = (2,1)
- Q How does Pearlite form (start from the Austenite phase) and whydo the layers within an etched Pearlitic microstructure oftenappear to be of variable separation?
- Q A Projectile is shot at a moving target with initial velocityVo=2000ft/s. The target is moving at 500ft/s and its initial startwas (Xo, Yo)= 200',300' at angle phi=15. the weight of...
- Q Water vapor at 5 bar, 320°C enters a turbine operating at steadystate with a volumetric flow rate of 3 m3/s and expandsadiabatically to an exit state of 1 bar, 200°C....
- Q Why does a eutectic or eutectoid microstructure take the formthat it does?
- Q name four types of material for making cable insulation andtheir typical applications in electrical services.which cableinsulation given has the highest permissible operatingtemperature
- Q How does shot peening introduce residual stresses over amaterial surface?Explain its mechanism by drawing the material surfaceplastically deformed as a result of the impact of theshot.    Â
- Q To become familiar with the general equations of plane strainused for determining in-plane principal strain, maximum in-planeshear strain, and average normal strain.The state of strain at a point has components...
- Q 1. One example of the Limits of the material beingprocessed in fused deposition modeling is that thematerial has to be a Thermoplastics. Provide some other examples ofthe limits of material...
- Q Describe the basic features of layout and structure of the wingand tail for Boeing 747-400, including arrangements of variouscomponents and elements.
- Q 6) A tapered surface is to be turned on an automatic lathe. Thework piece is 900 mm long with minimum and maximum diameters of 150mm and 300 mm at opposite...
- Q how does hot and cold working affect work hardening?
- Q Provide a sketch of how the tensile strength and the hardness ofa simple Fe-C alloy changes as the carbon content is varied.Details the reasons behind the responses that you have...
- Q 1. A practical method of doing the scale-up of cylindricalmixing tanks and agitator blades is to keep constant the power perunit volume of tank. It is desired to increase by...
- Q At the beginning of the compression process of an air-standardOtto cycle, p1 = 1 bar, T1 = 290 K, V1 = 400 cm3. The maximumtemperature in the cycle is 2200...
- Q Draw & Label the typical fuel system for an engine that onyburns distillate fuel.
- Q Below are the control strategy of hydraulic hybrid vehicle. Howcan I modify code below to include the torque of motor of hydraulichybrid vehicle? and How can I improve thisfunction [SOC,k,T_engine,S_engine,T_brake,T_pump]...
- Q A two stage, single-acting compressor has a free air delivery of4.2 m3/min when the ambient condition is 1.013 bar, 15oC.• The suction pressure and temperature are 0.98 bar and 32oCrespectively....
- Q Your boss ask you to size a fun to transfer 50000 SCFM of air toventilate a building 500 ft from the intended location of the fun.However, your boss has found...
- Q A 4 mm-diameter spherical raindrop falls freely in standardatmosphere. (a) Sketch a FBD and derive an equation for determiningthe terminal velocity. (b) Determine the terminal velocity. (c)Repeat (a) if the...
- Q Fluid Mechanics Friction Problem: Write one MATLAB m-file thatsolves the Type I and II problems presented in class based on thefile posted for the Type III problem (use Colebrook to...
- Q If the time to failure distribution (PDF) is given by f(t) =gt-4 (t > 2) and f(t) = 0 for t ? 2:a) What is the value of g?b) What...
- Q What is a solid solution and what are the common typesencountered in metals? Provide examples of common engineeringalloys for each type (e.g. steel). Explain how a solid solution canhelp raise...
- Q 5) i) A two axes of an x-y positioning table are each driven bya stepping motor connected to a lead screw with a 10:1 gearreduction. The number of step angles...
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