Automotive Service Technician (AST)

Second Period Package (36 Modules) Comments

Date: 10/18/2020 10:16:41 AM
Module: 090201d
Version: 21
Page: 23
Comment: Answer to question #5 is incorrect. It states that bearings matched to the crankshaft should be oversized. This is incorrect. The bearings needed are undersized due to the inside diameter. The bearings now form a smaller diameter which makes them undersized. The bearing manufactures will identify this on the back of the bearing with a mark like this - 0.010us. The correct answer should be A
Status: Update in Progress

Date: 12/5/2019 3:34:07 PM
Module: 090201e
Version: 21
Page: 38
Comment: Answers for question #3 are incorrect. The picture was changed in the last revision, but the answers were not changed to match the new picture.
Status: Approved for Review

Date: 12/5/2019 3:39:37 PM
Module: 090201i
Version: 21
Page: 17
Comment: Figure 17 is incorrect. The picture is NOT an impeller wheel. (It is a differential drive pinion)
Status: Approved for Review

Date: 4/20/2020 2:45:20 PM
Module: 090205c
Comment: I have had student come out of the AIT exam totally confused asking me "what is multiplexing?" as there is a question on the exam about multiplexing. There is currently no mention of multiplexing in the 1st or 2nd period modules. It was in the older 2nd period material. I believe that we need to add a paragraph or two as an overview of multiplexing to this module.
Status: Approved for Review

Archived Comments

Year: 2020

1/6/2020 9:35:05 AM
Module: 090202a
Version: 21
Page: 31
Comment: Figure 34 is missing
Status: Implemented