Activity 7.3 Answer Key _ Introduction to Engineering Design Teacher Tolerance[ANSWER KEY 100% VERIFIED]and a Procedure to follow]

Activity 7.3 Tolerances Answer Key Procedure 1 Study the drawings below to identify specified tolerances. a. Highlight each dimension that has a tolerance associated with it using something like a highlight marker. ...

Activity 7.3 Tolerances Answer Key Procedure 1 Study the drawings below to identify specified tolerances. a. Highlight each dimension that has a tolerance associated with it using something like a highlight marker. b. Identify the type of tolerance in each highlighted example by labeling each tolerance dimension with one of the following: limit dimensions, unilateral tolerance, or bilateral tolerance. c. Label each identified tolerance with a separate letter, A through Z. d. Beginning on a new page in your engineering notebook for each part, record the letter of each tolerance identified on that part drawing, the type of tolerance, a short written phase that describes the dimensional variation allowed for that dimension, the tolerance (a number representing the total allowed dimensional variation), and an explanation as to why that particular dimension requires a tolerance. You may wish to duplicate the following table in your notebook to organize your notes. 5/6/2020 Activity 7.3 Answer Key https://pltw.read.inkling.com/a/b/3d2290f0805a4c7ab66bf54f2b48c87f/p/617b00e998cf41838534ff8404aa5607 2/20 Part Name: ADJUSTABLE ROCKER ARM Letter Tolerance Type Written Explanation Tolerance Why? A LIMIT DIMENSIONS Dimension x is 0.531 in. ≤ x ≤ 0.536 in. 0.005 in. To accommodate dimensional variations and/or fit of shaft that fits in hole B LIMIT DIMENSIONS Dimension x is 0.750 in. ≤ x ≤ 0.755 in. 0.005 in. To accommodate dimensional variations and/or the fit of shaft that fits in hole C LIMIT DIMENSIONS Dimension x is 0.590 in. ≤ x ≤ 0.595 in. 0.005 in. To accommodate dimensional variations and/or fit of shaft that fits in hole 5/6/2020 Activity 7.3 Answer Key https://pltw.read.inkling.com/a/b/3d2290f0805a4c7ab66bf54f2b48c87f/p/617b00e998cf41838534ff8404aa5607 3/20 Part Name: BASE PLATE 5/6/2020 Activity 7.3 Answer Key https://pltw.read.inkling.com/a/b/3d2290f0805a4c7ab66bf54f2b48c87f/p/617b00e998cf41838534ff8404aa5607 4/20 Letter Tolerance Type Written Explanation Tolerance Why? D UNITALERAL TOLERANCE Diameter may be up to 0.003 in. larger than 0.50 in. but not smaller 0.003 in. To accommodate a tighter fit and more precise alignment between the anchor bolts and the base plate than would be provided by the general tolerances. Note that in many cases the tolerances on the size and location of the anchor bolt holes is generous to allow for misalignment of the anchor bolts when placed in concrete. E BILATERAL TOLERANCE Dimension may be as much as 0.002 in. larger or smaller than 0.25 in. diameter 0.004 in. To accommodate a specific fit between the cylindrical object that fits in the hole and the base plate that would not be accommodated with the general tolerances. F LIMIT DIMENSIONS Dimension x is 2.000 in. ≤ x ≤ 2.003 in. 0.003 in. To limit the location of the center hole (and the inserted cylindrical object).