Mechanical Engineering question and answers for July 29, 2023
- Q Determine the magnitude of the Schmid factor for an FCC singlecrystal oriented with is [100] direction parallel to the loadingaxis
- Q Derive the equation for the shear strain in terms of the mobiledislocation density and velocity
- Q why would one choose a fire tube boiler instead of a water tubeboiler
- Q A Honda Civic 1.2 has a mass of 680 kg moves up on inclinedroad (0 5) with a velocity of 50 km/h (3000 rpm crankshaft speed).a) Compute resistances which prevents...
- Q (30%) Q5. Composition of gas in diesel engine after combustionengine is 5% oxygen, 20% carbon dioxide, 15% water vapor, andremaining is nitrogen gas in volume. Temperature and pressure ofthe gas...
- Q Consider a large plate of thickness 50 mm andthermal conductivity of k= 69 W/m.C inwhich heat is generated uniformly at a constant rate of 600kW/m3. One side of the plate...
- Q information about (shaft's critical speed)..What is it? How it happens? How to avoid it?Draw??
- Q i want for an exercise to find the materials for a supsensioncar system and manufacturing
- Q Air flows down a pipe with a diameter of 0.15 m. At the inlet tothe pipe, the Mach number is 0.1, the pressure is 70 kPa, and thetemperature is 35°C....
- Q Why can't I use the sum of force(about y axis) =0 at point P? Iused this method to get the tension in the cord at first ofsolution, but gotten wrong...
- Q Research and write a recommendation report that compares two or more things. Address a topic or issue of your major field of study.Â
- Q simplify washing machine by removing its design elements/partsone by one. How many parts did you remove until it does not workwell? What are these parts? What can you say about...
- Q What is brake mean effective pressure (bmep)? Is it awork term or is it a pressure term? Write the formula/equation forbmep. Make a table of typical maximum values (range of...
- Q 1.a Which meshing considerations are important to consider whenperforming a modal analysis?1.b sing the Ansys command remote force is sometimeshandy to apply a force to a model. In which case...
- Q 1.a Show that you understand what element distortion is byexplaining the general problem caused by too distorted elements anddrawing ideally and distorted elements of the following types: a)Solid tetrahedron b)...
- Q 1. Use Thwaites' method to find the separation point for flowacross a infinitely long cylinder (BOUNDARY LAYER THEORY IN FLUIDMECHANICS).
- Q Consider a simple ideal Rankine cycle which uses water as theworking fluid. The boiler pressure is 6100 kPa and the condenserpressure is 30 kPa. At the turbine inlet, steam is...
- Q Consider a simple ideal Rankine cycle which uses water as theworking fluid. The net power of power plant is 220-MW. At theturbine inlet, steam is at 9 MPa and 560°C....
- Q 1. Use the approximate integral method to find the pressuregradient at the inlet of a circular pipe (BOUNDARY LAYER THEORY INFLUID MECHANICS);
- Q List 5 generic properties of polymers, and briefly relate theseproperties to the atomic structure of polymers.
- Q Consider the same TTT diagram and phase diagram for a eutectoidsteel. TTT If a specimen of this steel is solutionized (aka,annealed to equilibrium) at 800°C, rapidly cooled to 300°C and...
- Q Consider a two-dimensional triangular lattice described by thetwo primitive vectors (in an orthogonal coordinate system   Find the two primitive lattice vectors describing the reciprocallattice. Find the area of the 1stBrillouin zone...
- Q Consider a plane wall with uniform thermal energy generation perunit volume of qdot. Starting with the steady-state heat equation,obtain a general expression for the temperature distribution (Sinceno boundary conditions are...
- Q How many times longer than the time constant tau is safe toassume dynamics completed?(assuming this is talking about order systems...)
- Q howto draw a function tree for the pressure cooker using FASTmethod
- Q safety rules in operating farm tractor with trailerbefore, during, and after operation
- Q How will you decide a particular CNC machine for a particularoperation ?
- Q A person cuts a piece of Bronze that is 5\" long with a 2.5\"diameter down to 2.100 Dia.It is done in 2 roughing passes and 1 finishing pass.First pass from...
- Q For the harmonic oscillator, briefly describe how theeigenvalues relate to the system being under-, critically-, orover-damped? Draw a sketch that relates the time course ofsolutions to the eigenvalues.
- Q Technician A says that oil pan gaskets are often made of corkdue to its ability to conform to small imperfections in the oilpan. Technician B says oil pan and valve...
- Q Though the electric-gasoline engine allows better miles pergallon relative to a traditional gasoline engine, it is not withouttechnological tradeoffs. Regarding the first electric-gasoline carsto market, much of the mpg achieved...
- Q A closed, rigid tank is filled with water. Initially, the tankholds 0.6 lb of saturated vapor and 6.0 lb of saturated liquid,each at 212°F. The water is heated until the...
- Q can you apply real gas equation to a saturated liquidstate or super heated state??
- Q PLS EXPLAIN IN DETAIL THE WELDING PROCESS USED FORBUTT-JOINTS OF METALS.ALSO ILLUSTRATE THE PROCEDURE TOFOLLOW BEFORE AND DURING WELDING. PLS WRITE IN MORE THAN 100WORDS.
- Q PLS EXPLAIN IN DETAIL THE SAND MOLD CASTINGPROCESS. PLS WRITE IN MORE THAN 250 WORDS ILLUSTRATINGEACH AND EVERY FINE DETAIL.
- Q In a three-point balancing test without phase the values for theoriginal vibrations are V0=10 mm, and the values of the amplitudeof vibration for the three points in the test with...
- Q A heat engine operates by extracting 2,000 KJ of heat from asource at 1500 K, and dumping 800 of waste heat into a sink at 300K. a) Does this engine...
- Q Looking for a detailed work breakdown structure for a footballstadium. Please do not answer it with a definition. The moredetails the better.
- Q Determine the response of a mass-spring system when it issubjected to a half-sine pulse of 250 dyne amplitude and 0.25?seconds duration. The mass is 20gm and the spring stiffness is197.4...
- Q A torsion pendulum with a vanadium wire containing nitrogen,and a period of 2.00 seconds, shows a decrease in thependulum amplitude, A, of 10 percent in 100 cycles of oscillationat 350K....
- Q One kg mole of an ideal gas is compressed isothermally at 127°Cfrom 1 atm to 10 atm in a piston-and-cylinder arrangement.Calculate the entropy change of the gas, the entropy change...
- Q In sand casting, the volumetric size of the pattern is:(A) bigger than, (B) same size as, or (C) smaller than the castpart.
- Q Which of the following are advantages of die casting over sandcasting (four best answers):(A) better surface finish,(B) closer tolerances,(C) higher melting temperature metals,(D) higher production rates,(E) larger parts can be...
- Q An alloy manufacturer is planning to produce 1000 kg of an alloywith 25% of metal A and 75% of metal B by combining five availablealloys. The quantity available and prices...
- Q 1. Oil with a specific gravity of 0.75 is pumped by acentrifugal pump at 375 gpm, 19 hp, and 81% efficiency. Determinethe pressure head in terms of: a) Feet of...
- Q 1. A centrifugal water pump impeller is given an inlet and exitradius of 400 mm and 1200 mm, and an inlet and exit blade thicknessof 120 mm and 80 mm....
- Q 1.a.Explain how differential action could beprevented.b.Explain how to achieve reverse direction inEpicyclic Gears.
- Q Water will be pumped from a reservoir free surface of which isat an elevation of “z1†to reservoir the free water surface ofwhich is at “z2â€. Both of the reservoirs’...
- Q If back rake angle is zero . What will be rake angleWhat is back rake angle
- Q A machine cuts N pieces of a pipe. After each cut, each piece ofthe pipe is weighed and its length is measured. These two valuesare stored in a matrix called...
- Q think of three inventions that could not be patented. One due touselessness, one due to lack of novelity, and one due to being tooobvious
- Q Calculate the pressure losses across the different sections ofdrill pipe and annulus by using the Bingham plastic fluid model(You must draw the wellbore structure chart: without the chart, 50%points will...
- Q Spacecraft Design Dynamics Conceptual Question:If I had an oblate spinning spacecraft (hockey puck shaped)spinning about it's z-axis (the body z-axis being normal to the topsurface).If I were to add an...
- Q In a two-dimensional vortex flow, the fluid flows in circularpaths around the center of the vortex. The magnitude of thevelocity decreases with distance from the center. The streamfunction for a...
- Q Matlab code fr natural frequency of lateral vibration ofbeams...using PDE solver method
- Q 10.8 What happens to an employee who passes through thesocialization process?
- Q 10.7Â Â Â Â What are the goals of agood induction program?
- Q To increase load carrying capacity of a tube (ID: 40mm, OD:45mm) it was determined in the last minute that it should bereinforced by combining it with a larger tube (ID:...
- Q Discuss the effect of (i) grain size and (ii) phases amounts onthe mechanical properties of the steel metal
- Q An aircraft is in level flight at airspeed v(t) m/s with thrustT(t) N at cruising altitude. Suppose that at v0 = 250 m/s, theaerodynamic drag experienced by the aircraft at...
- Q A 6 inch diameter water main in your town has become very roughdue to rust and corrosion. It has been suggested that the flowratethrough this pipe can be increased by...
- Q Air enters a 30-cm-diameter cooling section at 1 atm, 35 C, and60 percent relative humidity at 120 m/min. The air is cooled bypassing it over a cooling coil through which...
- Q air at 110 kpa and 25 degrees C enters a diffuser withdiameter of 10 cm and 25 cm at entrance and exit. if the velocityof air at the entrance is...
- Q Considering only conductive heat losses, calculate the heatingload in BTU/H for a home constructed as follows:walls: 2 inch hardwood planks, plus 1/2 inch lapped wood sidingand 1/2 sheetrock (drywall) inside.roof:...
- Q In a delivery line for carbontetrachloride at the constant flowrate of 4 X 10^(-5) m3/s, the first 1000 mm long section is of 20mm inside diameter smooth pipe followed by...
- Q Air is compressed adiabatically in a piston–cylinder assemblyfrom 1 bar, 300 K to 4 bar, 600 K. The air can be modeled as anideal gas and kinetic and potential energy...
- Q A conduit carrying water vapor has one inlet and two exits. Atthe inlet, the velocity 25 m/s, the pressure is 4 bar and thetemperature is 350 Celsius. The area at...
- Q Three phase voltage is spaced? is it 120 degrees apart?
- Q A three phase 30 hp 460 volt 60 hz, 1770 rpm design B inductionmotor with class F insulation and service factor of 1.0 isoperating at rated shaft load in a...
- Q Energy flows out of the system in form of a heat in aninternally reversible process. What happened to he entropy of thesystem? Explain
- Q Energy flows out of the system in form of a heat in aninternally reversible process. What happened to he entropy of thesystem? Explain
- Q Consider the design of a wastewater treatment plant (WWTP) for acommunity with averagedaily and peak hourly wastewater design flows of 7570 m3/day and18925 m3/day. The rawsewage has an average of...
- Q 1. A plant is located at an altitude where the atmosphericpressure head is 31 ft of water and the vapor pressure is 9.34 psi.The pump is placed 10 ft below...
- Q Sketch constant preassure curve in T-s diagram.
- Q A metal bar, initially at 2000K, is placed in a large tank ofwater at room temperature. Tank is well isolated from theenvironment. Between the moment bar was placed in the...
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