Millwright (MIL)

Supplementary Math Package Comments

Date: 6/16/2021 8:41:54 AM
Module: 160101a
Version: 22
Page: 15
Comment: Figure 5 Binder name should be updated to SDS
Status: Declined

Date: 6/16/2021 8:42:14 AM
Module: 160101b
Version: 21
Page: 50, 51
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: Update in Progress

Date: 6/16/2021 8:42:55 AM
Module: 160101c
Version: 22
Page: 3
Comment: Figure 1 should be updated to read SDS instead of MSDS.
Status: Update in Progress

Date: 6/16/2021 8:44:32 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: Update in Progress

Date: 11/26/2021 12:22:14 PM
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: Approved for Review

Date: 11/26/2021 12:22:33 PM
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: Approved for Review

Date: 11/26/2021 12:22:51 PM
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: Approved for Review

Date: 6/16/2021 8:45:02 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: Update in Progress

Date: 2/23/2021 3:06:38 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: Approved for Review

Date: 2/4/2021 7:39:29 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: Approved for Review

Date: 2/4/2021 7:39:19 AM
Module: 160105b
Version: 21
Page: 27/29
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: Approved for Review

Date: 6/16/2021 8:48:17 AM
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

Date: 6/28/2021 7:10:22 AM
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

Date: 10/26/2021 11:47:37 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: Approved for Review

Date: 11/2/2021 9:25:27 AM
Module: 160106gB
Version: 21
Page: 29 and 39
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: Approved for Review

Date: 11/9/2021 9:38:18 AM
Module: 160205d
Version: 21
Page: 16, 17
Comment: Figures 13 and 14 are missing surface identification that is described in the paragraphs above them. There are circles for the identifiers to be located, but they are missing. Figure 13 also has distortion in the front view. The Tee slot is misshapen. It should look like the front view in figure 14.
Status: Approved for Review

Date: 11/9/2021 9:44:32 AM
Module: 160205e
Version: 21
Page: 5
Comment: Figure 3 shows the dimension convention for piping. Page 4 describes flanges being dimensioned to their face, however figure 3 does not show the flange dimensioned. Please add an extension line and dimension line to the flange on all 3 of the drawings in figure 3.
Status: Approved for Review


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