Mechanical Engineering question and answers for July 09, 2023
- Q 14) Generate a Tool design checklist for designing an injectionmold.
- Q A mass of m = 1 Kg of an ideal gas (gas constant R= 278 J/KgK)undergoes two polytropic processes. During the first processtemperature increases from 27 0C to 237 0Cand...
- Q How is sprue bushing design related to cycle time?
- Q 2) What does cooling mold temperatures accomplish?
- Q What are the issues involved in design for serviceability?Obtain an automatic pencil sharpener. Disassemble it. Evaluate itsdesign from serviceability aspect.
- Q Autonomous driving technology is going on a test run on actualroads in order to become commercialization. As self-drivingtechnology, which has been conducted under controlled experimentalconditions, is going to drive on...
- Q Consider an adiabatic, piston cylinder assembly containing 1kmol of propane (C3H8) and 7 kmol of oxygen(O2). The piston is initially pinned, and the pressureis P1=1000 kPa with temperature T=1000 K....
- Q A flexible machine part was observed to vibrate excessively at20 Hz due to a harmonic force of unknown amplitude. It wasconcluded that vibration was large because the harmonic forcecoincided with...
- Q a high pass rc filter can be changed to a low passfilter by
- Q Why airplanes in War World I was important to society and theproblem it solves?
- Q On the surface of a certain component made of aluminium with amodulus of elasticity of 75 GPa and a Poisson’s ratio of 0.35, astrain gauge rosette measures the following strains...
- Q Bill, a process engineer, learns from a former classmate who isnow a regional compliance officer with the Occupational Safety andHealth Administration (OSHA) that there will be an unannouncedinspection of Bill’s...
- Q An F/A-18F Super Hornet weighing 22,000 kg is flying at Mach 0.7at an altitude of 3.5 km. The plane has a length of 18.3 m, awingspan of 13.6 m and...
- Q Materials are subject to changes from temperature. We know thereare several states of matter; solid, liquid, gas, and plasma.However, within a solid-state, materials have their propertiesaffected, in particular, brittleness. The...
- Q A SCADA system monitors an application through an RTU out in the field. Please list typical RTU hardware that may be encountered.
- Q 6.Demonstrate the effect of cold work on the yield strength,tensile strength, percent elongation, Rockwell B hardness, andmodulus of elasticity of Red Brass for flat products by plottingthese quantities as functions...
- Q What were the pros and cons of forming another strategicalliance (i.e., the Mazda-Toyota partnership) to compete in theautomotive industry?
- Q You are to manufacture a smart phone case, material selectionquestion below:Speicfy the details of the EXACT material gradeselected for each of the three materialvariations of the smart phone case; one...
- Q Draw a sectional diagram of an aircraft wing, showing thestructure of the wing and the control surfaces. Then detail themost appropriate materials used for each of the main parts,mentioning at...
- Q 1. Select 3 materials that you think are best for the design ofa smart phone back plate cover (not protection case) : OneMetal, One Polymer and One Carbon Fibre composite.2....
- Q Explain the nature of defect in casting process and identify thedefects through various NDT techniques.
- Q 1. Provide at least three advantages and disadvantages ofmask-based process compared to the stereolithography process.2.Name three solid-based RP processes. Briefly explainfundamentally how each process transforms from a solid to form...
- Q Wind Tunnel Experiment:1. Using the manometer measurements, determine the two speedswith which the wind tunnel was operated. (1 mark)2. Discuss how changes in Reynolds Number affect the flowseparation and provide...
- Q 3. Design and draw a circuit using the cascade system to operatetwo cylinders (A and B) which, on the operation of a start valve,produces the sequence A – B +...
- Q Design a four-link mechanism when the motions of the input andthe output links are governed by a function y = x2 andx varies from 0 to 2 with an interval...
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