Plumber (PLU)

Second Period Package (29 Modules) Comments

Date: 11/27/2020 2:45:11 PM
Module: 060201a
Version: 21.0
Page: 16
Comment: First sentence under the heading "Soldering Copper Tube" should be fixed to read better. "..., must be soldered with solder materials that do not have a lead content in excess of 0.2%. See Article 2.2.9.2 (2)" or "..., must be soldered with soldering materials that do not contain an excess of 0.2% lead content." (I like the first better.)
Status: Approved for Review

Date: 11/27/2020 2:45:22 PM
Module: 060201a
Version: 21.0
Page: 15
Comment: Last sentence on page 15 states that minimum pressure is 50 kPag to ensure minimal operation of fixtures. I am not sure why this number is in there or where it came from. The code (NPC) clearly states in 2.6.3.4 (5)b that minimum water pressure is 200 kPa which is roughly 30 psi (29 actually).
Status: Approved for Review

Date: 11/5/2020 11:29:47 AM
Module: 060201b
Version: 21.0
Page: 29
Comment: last sentence in paragraph 3 states that rainfall data can be obtained from NPC, which is a typo. It should say NBC. The code reference to this can be found in NPC15 at 2.4.10.4(1) -- "...maximum 15 min rainfall determined in conformance with Subsection 1.1.3 of Division B of the NBC,..."
Status: Approved for Review

Date: 11/10/2020 7:04:35 AM
Module: 060201c
Version: 21.0
Page: 21
Comment: In the first sentence in point #8, the third instance of "storey" needs to be corrected from "stores" to "storey".
Status: Approved for Review

Date: 11/10/2020 2:29:08 PM
Module: 060201c
Version: 21.0
Page: 46
Comment: Objective Six Exercise does not meet the definition of an exercise. Although it could be the answer to an exercise, if the exercise was to use the NPC to look up and define the various articles and tables as listed there; such as: 1) Article 2.5.2.1 describes what? 2) Article 2.5.7.1 describes what? 3) Table 2.5.7.1 lists what? ... and so on.
Status: Approved for Review

Date: 11/10/2020 2:29:19 PM
Module: 060201c
Version: 21.0
Page: 43
Comment: Figure 44 shows roof vent with 1-1/2" x 2" increaser penetrating through roof. NPC Article 2.5.6.5 (3) states that a vent through roof must not be less than 3" where risk of frost closure exists. Seeing that we are in Alberta, I don't agree that fig 44 shows a 2" termination.
Status: Approved for Review

Date: 11/10/2020 2:29:32 PM
Module: 060201d
Version: 21.0
Page: 29
Comment: Figure 19 does not appear in my copy of the ILM, although there is a reference to the TIF file that would be there.
Status: Approved for Review

Date: 11/13/2020 9:57:19 AM
Module: 060201d
Version: 21.0
Page: 30
Comment: bottom of page #13 incorrectly states that the floor drain has no vent and so must be 3". The floor drain is wet vented through the laundry tray and upstairs sink (I don't really think that it is a "kitchen sink", but inconsequential as far as exercise is concerned) as stated in #8 and as evidenced in Figure 18.
Status: Approved for Review

Date: 11/13/2020 9:57:34 AM
Module: 060201d
Version: 21.0
Page: 18
Comment: Number 13 at bottom of page, referring to Figure 15, states that the floor drain is vented through the building drain and so must be 3". In fact, the floor drain is wet vented through pipe #8, as stated in #8 and as is evident in Figure 15, so could be reduced to 2" in size.
Status: Approved for Review

Date: 10/7/2020 8:30:11 AM
Module: 060202d
Version: 21.0
Page: 24
Comment: We need to remove the percent (%) from the TEL equation, or change the factor from 1.5 to 150, however 1.5 is the common method, (multiply by one and a half...is what has been commonly taught for 30+ years) 130 x 1.5% is not equal to 195 so then it should read at the bottom of the page: Total length of pipe x fitting allowance factor (1.5) = TEL (total equivalent length)
Status: Approved for Review

Date: 5/31/2019 11:16:51 PM
Module: 060203d
Version: 5.4
Page: 28
Comment: A FFRT for appliances up to 400 MBH is stated in the ILM as 180 seconds; in the B149.3 it clearly states that the FFRT should be 90 seconds. To compound this it has been several code renditions that this was changed. As this would likely be a really good exam question - it poses a dilemma for the students: answer it according to code or the mis-statement in the ILM.
Status: Approved for Review

Date: 10/22/2020 2:06:28 PM
Module: 060205eB
Version: 21.0
Page: 37
Comment: Figure 38, Answers for Exercise 3, Question 11 North Arrow is pointing in the wrong direction. In order to be correct, the drawing has to spin to the correct orientation (stack to the North), or an easier fix is to switch the North Arrow to point Down and to the Right.
Status: Approved for Review

Date: 11/10/2020 2:29:48 PM
Module: 060205g
Version: 21.0
Page: 24
Comment: Question 9 in the self test, I think, should use 305 mm for the rough-in measurement for the water closet. It appears by the answer on pg 26, that 300 is being used as a approximation (or 'soft conversion') of 12 in. to mm. The rough-in measurement as per Crane would be 305mm. If 300mm is what we want to use, then it should be given in the question as the rough-in measurement to use. This would save frustration. My math for the question is : 5285 + 2130 + 1645 = 9060 – (70 + 305 + 12.7) = 8672.3 Using 300 for the rough-in would make my answer agree with the book (8677.3 mm).
Status: Approved for Review


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