last-MAE-EXAM

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1351

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Aerospace Engineering

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Dec 6, 2023

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MAE 1351:FINAL EXAM 1) Mario Luigi Bernanio de Carpio, my Italian suppliers machinist says his lathe holds half a millimeter this is closest to:  20 microns 2) Consider the following the fit situation shaft 1.000/1.005, hole .995/1.000. The allowance in thousandths would be:  0 3) Consider the following fit situation shaft .995/.999, hole .991/1.000. The shaft and hole tolerances respectively in thousandths are:  ?? 4) In the ANSI/English tables of fits, the term LC refers to:  None of the above 5) ASME Y14 is the only standard worldwide that defines proper dimensioning and tolerancing techniques. True?  No, other ISO standards 6) The concept of an unnatural, rectangular tolerance zone for a shaft-hole interface can arise when using:  Both (GD&T and limit (plus-minus)tolerancing ) 7) The flatness geometric tolerance defines:  A 3D zone in between two parallel planes 8) A profile geometric tolerance must reference a datum. True?  optional 9) The profile of a surface specifies a 3D tolerance zone defined by two contoured surfaces. True?  yes 10) A dial indicator is used to check for GD&T features such as flatness and parallelism. True?  Yes 11) I am designing a steel bracket to hold an inspection camera system. I am concerned about how much the bracket might deflect under load. A logical choice to answer this question in SW is…  FEA 12) To find out the center-to-center distance between two fastener clearance holes in a part that are located very close to each other, we would this in SW:  Measure tool 13) Among these choices, the most lifelike (as seen by the human eye) pictorial is:  2 point perpective 14) According to ASME Y14.5, for simple geometries such as a plate, a properly dimensioned pictorial (E.G. axonometric) may be used as a working drawing.  No; working drawings must always use orthogonal projections 15) My pictorial has its axes set up such that the angles between them are 120, 140, and 100. My pictorial is:  Axonometric 16) The marking for the projection standard (3 rd angle) commonly used in the United States is:  Concentric circles to the left of a trapezoid 17) An engineering drawing shown a circle on top of a square. The title block states that 3 rd angle projection is being used. The object being represented is a:

 Semi-cylinder 18) ANSI drawing standards specifically mention that all dimensions and tolerances apply at room temperature and in a free state condition, unless otherwise specified. True?  Yes the standard actually specifies this 19) In an engineering drawing, the primary title block generally does not include this information:  Revolution history 20) When features are dimensioned relative …  Chain dimensioning 21) My assembly has a fixed cylinder. I add a second identical cylinder with a single concentric constraint between their curved surfaces. The… cylinder has these many degrees of freedom  two 22) Non-metallic materials commonly used to engineering designs include  Neither of the above 23) A material you would look for if you design needed good heat transfer characteristics would be  Copper 24) A drawing shows a thread specification as 0.33 UNC this means  It has a pitch of 32 threads per inch 25) The difference between a bolt and a screw is that:  Bolts generally operate with a nut where as a screw generally plunges into the threaded component 26) A Philips/pozldrlv screw head has this shape:  stress 27) Short run manufacturing refers to this phase of product development:  “manufactured like “ prototyping 28) Casting best fits under this general manufacturing category:  Bulk formation 29) This acronyms FDM and SL5 are associated with..  3D printing 30) I am designing a set of compound pillars- this is a device that would be used to cut through the hardened steel of a lock, or heavy metal wire. I am trying to find out how much force it will apply at the cutting edge depending on how much force I apply at the handle with my hands. The most likely choice to find this out in SW would entail the use of..  Motion analysis 31) IN 3D modelers such a as SolidWorks, a simple model is created by means of a:  Extruded profile 32) In SW the front plane is defined by these axes  xy 33) Examples of sketch constraints include the following  All of the above (horizontal, parallel, vertical, coincident, tangent, coincident) 34) My SW sketch consists of a line roughly horizontal and two circles side-by-side above it. Neither of the three items is drawn or located precisely, but they don’t touch. A revolved boss around the line would create:  2 parallels toroids 35) My SW sketch consists of a 3-4-5 right angle. A revolved boss around the short leg creates:

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