Machinist (MAC)

Third Period Package (25 Modules) Comments

Date: 1/22/2020 9:08:58 AM
Module: 150302c
Version: 21
Page: 11
Comment: The formulas on this page are not readable
Status: Approved for Review

Date: 11/16/2020 7:56:24 AM
Module: 150302f
Version: 21
Page: 26
Comment: Module 150302f Version 21 Question 13(p.26) asks; "What is the approximate lead angle of an 8 DP worm with a pitch diameter (PD) of 1.75 inches? Unless I'm missing something this should be a simple Tan function. (pi / DP (8) ) / (pi x 1.75) = 2nd fc tan = lead (linear pitch) p.11 / circumference = 2nd function tan = I get 4.085 degrees. The answer p. 29 is 13)B 3.5 degs. I think 13)C is closer, 4 degrees.
Status: Approved for Review

Date: 11/6/2020 3:35:39 PM
Module: 150302h
Version: 21
Page: 43
Comment: self test question 1 The answer “C” your answer is “B” page 46. The correct information is found on page 2.
Status: Approved for Review


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