11/26/2021 10:25:52 AM Module: 160102bA Version: Page: Comment: Figure 57. This picture shows two micrometers, one without a vernier scale and one with. In the second half of the pic on the vernier micrometer the thimble is not showing the same measurement. Notice the index line. That second half of that pic or vernier micrometer needs to show the proper measurement in addition to the Vernier lines lining up. Status: Implemented
11/26/2021 10:19:59 AM Module: 160102bA Version: Page: Comment: Figure 65 doesn't match the text before it. The material before this picture refers to the picture and explains how to read a depth micrometer and gives a specific measurement of .850. The picture does not show the .850 of an inch as described above. The original drawing that was replaced did. This new pic needs updating. Status: Implemented
11/26/2021 10:14:41 AM Module: 160102bA Version: Page: Comment: In 102bA ,Figure 33, this picture only shows the 50 division vernier on the Metric side while there is a 25 division vernier on the Imperial side. The Material is clearly talking about Imperial 50 division verniers. This pic is a replacement of a drawing that was better suited Status: Implemented
11/2/2021 9:24:09 AM Module: 160106gB Version: 21 Page: Comment: Objective 5 exercise 3 answer key has conflicting information. The answer on page 39 for #3 o) mentions 10 threads, but could be interpreted as 8 threads if using a key that is 3/8" from the note on the drawing. Please remove the note in the question stating the key is 1/4 the size of the shaft, which is 1 inch as it creates confusion. The answer should be 8 threads not 10. For 8 threads: The depth of the threaded hole is 0.55". The note at the bottom of fig 35 mentions the keyway is 3/8". Assuming half the key sits in the shaft and the other half sits in the keyway, we can say the depth of the keyway is half of 3/8" which is 0.1875". The question says there is a 2 thou clearance. The thread has a pitch of 0.0416". Solution 0.55 - 0.1875 - 0.002= 0.3605 ÷ 0.0416 = 8.67 threads. Status: Implemented
10/26/2021 11:40:41 AM Module: 160106gA Version: 21 Page: 37 Comment: The second bullet point is describing the width dimension of a woodruff key. It mentions it is given in 30-seconds of an inch. It should be changed to 32nds of an inch. Using the number 30 creates the idea that the measurement fraction has a denominator of 30 not 32. Status: Implemented
2/22/2021 12:41:36 PM Module: 160103g Version: 21 Page: 23 Comment: The middle paragraph describing the preload washer should have a heading before the paragraph as it is not part of the bevel washer information. Status: Implemented
2/3/2021 10:20:00 AM Module: 160105b Version: 21 Page: Comment: Self test question 14. The correct answer is not available as an option. The correct answer is move 12 toward the datum. If the face reads zero at 3:00 and 9:00 positions, it would make the first part of the formula become zero. S1=L1 / D × tirF - tirR/2 becomes S1= 0- tirR/2 which means the answer for S1 or S2 is +12 mil. According to page 23 - we move positive answers toward the datum (Zero) which means the answer is 12 mil to 3:00. A possible solution or fix could be to change option c) to read: move 12 mils toward the datum line. Status: Implemented
2/3/2021 9:58:00 AM Module: 160105a Version: 21 Page: 12 Comment: The top paragraph on page 12 is still talking about the information from the previous page. The heading for Vibration isolators should be above the next paragraph where it begins to talk about the isolators. Status: Implemented
10/1/2020 10:42:40 AM Module: 160103aB Version: 21 Page: 21 Comment: figure 20 does not show serial taps. these are standard taps with lines drawn on them. The picture should show that the pitch diameter is different between the 3 taps. https://commons.wikimedia.org/wiki/File:Gewindeschneider_01_KMJ.jpg Status: Implemented
9/21/2020 9:56:25 AM Module: 160101a Version: 22 Page: 15 Comment: Figure 5 Binder name should be updated to SDS Status: Declined
8/27/2020 10:26:39 AM Module: 160101dA Version: 22 Page: 23 Comment: Figure 20 shows a pipe hanger but not a lift ring. See this website for reference. https://www.mazzellacompanies.com/Resources/Blog/what-is-a-hoist-ring-different-types-installation-parts Status: Implemented
8/27/2020 10:13:19 AM Module: 160101b Version: 21 Page: Comment: Figures 48, 49, and 50 do not show what the description is saying. Here is a link to some examples of pictures that match the descriptions. http://unirope.com/products/slings/wire-rope-slings/rigging-guidelines/use-of-choker-and-basket-hitches/ Status: Implemented
8/21/2020 1:16:51 PM Module: 160106b Version: 21 Page: 2 Comment: There is no definition of the term fraction in the chart. It shows a good example but needs a definition. A fraction represents a part of a whole or, more generally, any number of equal parts. https://en.wikipedia.org/wiki/Fraction Status: Declined
8/21/2020 12:52:14 PM Module: 160106b Version: 21 Page: 2 Comment: In the definition of the term Equivalent Fractions there is a note "Error! Reference source not found." It should read "Figure 1 illustrates..." Status: Implemented