Quiz-Final
Please refer to these Wiki pages: http://caltech-mce-lab.wikidot.com/me13 & http://caltech-mce-lab.wikidot.com/gd-t
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A ±.001" tolerance can be achieved on the ProtoMAX WaterJet when cutting 1/8" thick aluminum sheet. *
10 points
Finish this sentence: When deflection is to be minimized, use no more than ____ of the diameter of the cutter for conventional milling and 5% for climb milling. Refer to the Climb Milling vs Conventional Milling document. *
10 points
According to the "Mechanical Tolerance Standards" chart on the ME13 Wiki page, what position tolerance should be used for a 5/16"-24 UNF threaded hole? *
5 points
Are the areas indicated in this drawing considered a feature of size? *
5 points
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There is a 3/8" thick Acrylic part this is to be cut in the laser. The tolerances for this part are ±.006", can these tolerances be achieved with the laser cutter? *
5 points
A ±.001" tolerance can be achieved on the ProtoMAX WaterJet when cutting 1/8" thick aluminum sheet. *
5 points
Which type of tap requires the highest cutting force? Watch the Tapping Essentials video: http://caltech-mce-lab.wikidot.com/me13#toc13 *
10 points
When tapping brittle metals, it is best to use tapping fluid. *
5 points
There is a need to fit a 70mm I.D. X 125mm O.D. rotating outer ring spherical roller bearing, mounted in a thin walled solid housing that is subjected to a continuous heavy load condition (0.35Cr). It has also been determined that easy axial displacement of the inner ring is NOT required. What are the housing and shaft size ranges? Refer to: http://caltech-mce-lab.wikidot.com/me13#toc8 *
15 points
According to the GD&T Hierarchy, which callout is NOT included in the Second Tier "Orientation" category? *
10 points
Finish this sentence from the sawing section of the Wiki page: Tooth Selection, always make sure that there are at least ______ teeth engaged in the cross-section of the material! *
10 points
Referring to the GD&T Hierarchy, which symbol is NOT part of the third tier? *
10 points
Which of the drawings shown below depicts the proper way to establish a center-plane on the rectangle plate? *
10 points
Given an IT5 tolerance grade for a hole, what machining operation is required to achieve this? *
10 points
There is a 3/8" thick Acrylic part this is to be cut in the laser. The tolerances for this part are ±.006", can these tolerances be achieved with the laser cutter? *
10 points
Is this a correct statement about Taylor's principle? "When a pin is at Maximum Material Condition (MMC), its form must have perfect shape." *
5 points
Concentricity is easier to inspect than Runout. *
5 points
From the 3-2-1 Rule and Points of Contact section of the GD&T datum's beginners guide . How many points does the tertiary datum require to restrain the part? *
5 points
When threading a through hole with a spiral point tap, you should run the tap straight through the part without reversing it in order to break the swarf/chips. *
5 points
Given an IT8 tolerance grade for an 80h8 fit, what is the shaft diameters range? Watch the video just above this refer chart: http://caltech-mce-lab.wikidot.com/me13#toc7. *
10 points
When cutting 90° angle stock in the horizontal band saw, what orientation should the stock be placed in the vice? *
10 points
Name: (Last, First) *
A shaft with a cross-sectional shape of a pentagon is considered a regular feature of size? *
5 points
What type of tolerance zone is this? *
5 points
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Given the information shown in the drawing and that the actual hole size is 6.88 and its measured location is (17.29, 12.16), does this part pass inspection or not? *
10 points
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What is most likely the cause of a large burr forming when milling or drilling? *
10 points
Refer to the Approximate Relative Cost of Progressively Tighter Dimensional Tolerances graph. If you were to change the tolerance of a part from ±.005" which originally cost $250.00, to ±.0005, what would the new cost most likely be? *
10 points
Most manufactures prefer a Position callout over Symmetry. *
5 points
There is a need to determine a hole size for a 3/8"-16 UNC fixed fastener. Referring to the "Tolerancing Fixed & Floating Fasteners" and the "Mechanical Tolerance Standards" chart on the ME13 Wiki page, what hole size should be called out? *
10 points
There is a 56mm diameter hole in a housing where the designer requires a H7/n6 Locational Transition Fit, what are the least material and maximum material conditions? Note: + = clearance & - = interference. *
10 points
There is a need cut a 5/8" radius in a part with the vertical contouring saw, what is the largest saw blade width required for this operation? *
10 points
What are the virtual condition sizes of the shaft and Hole ?  Will the shaft assemble with hole in all possible worst case conditions? *
15 points
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When given the information shown below, what is the maximum positional tolerance when the 2.5" hole is at the machined size of 2.506"? *
10 points
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Referring to the drawing below, change the two diameters and their associated symmetrical tolerances to a geometric tolerance of 0 @ MMC so that the most accurate parts are not rejected. See the Dynamic Tolerance Diagrams section of the Lab Wiki (http://caltech-mce-lab.wikidot.com/gd-t). *
10 points
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Given a shaft basis 85J7h4 fit, what are the upper and lower limits of this fit? Refer to the IT Grades Table Chart and the Bearing to housing and shaft example section of the Wiki page. Note: + = clearance & - = interference. *
15 points
Is this statement true? "Profile of a Surface must be used in conjunction with a Basic Dimension or a set of Basic Dimensions" *
5 points
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