Mechanical Engineering question and answers for July 06, 2023
- Q 2.Phase transformations and microstructural control in Fe-C alloysystem For the Fe-C alloy of eutectoid composition(shown below in the left graph):1100' 800 T TT500I I I I I I I Ia...
- Q A paper on the ‘Hyperloop Alpha’ concept for a high speedtransportation system was published in 2013. Since then, there hasbeen a lot of hype, time, and money directed toward the...
- Q Find a materialsproperty plot of elastic modulus and density.Identify a composite,a polymer, and a metal with densities less than 3000kg/m3 (Mg = 106 g) and the highest possibleelastic modulus. Provide...
- Q A mass of 5kg of saturated water vapor at 150 kpa is heated at aconstant pressure until the temperature reaches 200 C. Calculatethe work done by the steam during this...
- Q 1) In accordance with the first law of thermodynamics, an 1250kWsingle effect absorption chiller with a COP of 0.86 will require aheat source of ______ kW and a heat rejection...
- Q (THERMODYNAMICS) A vertical cylinderfitted with a frictionless piston contains 1.5 kg of H2O initiallyat 100 °C, 400 kPa.  If the volume of the system reaches0.5 m3, the piston hits a set...
- Q Entropy flows out the system in form of a heat in an internallyreversible process. What happened to the entropy of the system?Explain.
- Q What is the difference between invention and innovation?
- Q 1-Which pressure measuring device would you recommend to someonewho needs to measure the pressure in a home gas cylinder beforeusage, and why?2- Which pressure measuring device would you recommend tosomeone...
- Q Thermodynamics: It is not always possible or practical tomeasure a thermodynamic property directly. In the three followingsituations, select the measurements that are necessary to obtainthe desired property. Use as few...
- Q stress= 2659.588351 psi , force = 522.209 psi/in^2 , area=0.1963 in^2 , accuracy of load cell = 0.005 in , accuracy ofcalliper = 0.001 in ,•What is the uncertainty in...
- Q A man sits in a boat, which is floating on the surface of apond. He takes a rock from inside of the boat and throws itoverboard into the pond, determine...
- Q calculate the distance d from the center of the earth at which aparticle experiences equal attractions from the earth and from themoon. The particle is restricted to the line through...
- Q A sensor outputs a voltage in the range of ±3mV. Your A/Dsamples at 1000 Hz, has an input range of ±10V, and has a 12-bitresolution. Design an active filter to...
- Q Two materials, one with ε1 = 0.9 and the other with ε2 = 0.2 areavailable to use as filaments (light sources) for an incandescentlamp. Material 1 can be maintained at...
- Q A 10 L adiabatic container contains 0.1 mol of air, at atemperature of 250 K. It is closed by a stopcock. Ambient air is at300 K at a pressure of...
- Q How to determine gradient load ofGas turbine , HRSG and steam turbine
- Q Falls from Same Level and Falls from Heights300-500 discussion, Please do not Copy write (will get a thumbsdown)!!!!!!!!Employers should be more concerned with falls to the same levelthan falls from...
- Q choose a type of electric motor and search the internet to findthe specs and operational information such as horsepower ratingavailable cost and common application
- Q Consider a career path. Discuss one example of acurrent materials challenge in that field. What solutionsmight exist?
- Q (cantilever beam)In most practical applications the dimensions do not scale downby the same amount. Using the formula’s given in class/lecturesderive the overall scaling factor for the mass and deflection ifthe...
- Q One option for a material product’s end of life is recycling.Why is recycling of metals more successful than that of polymers?What are the additional challenges in recycling polymers comparedto metals?
- Q A centrifugal pump with an impeller diameter of 30cm and speed1800RPM operating at its best effiecieny point develops a head of30m and a flow of 3900L/min. while requiring power of...
- Q Using the Angström–Page method, calculate the average horizontalinsolation in Hamburg in May and in October with PS 40% and 60%,respectively.
- Q A 2024-T3 aluminum bar has rectangular cross section dimensionsof 2\" x 0.5\". The length of the column is 9.0 inches.A) Calculate the transition slenderness ratio (Sr)Dfor this column. [Answer should...
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