Just want to say thank you for these review videos. I just passed my FE exam on the first try because of these videos and PrepFE practice problems after being two years out of college. Thanks so much for taking the time and effort to make these review videos!!
Thanks! Question 16 helped me understand how to identify a square vs. a continuous footing. I am starting to see this during my PE review! Much appreaciated!
For question 13, the problem states that the time to load the truck is included in the 14 minutes, meaning that (14min-6min)=8min to dump only. So the excavator will not be idle for 2 minutes since truck A will be back within 8 minutes. Therefore, the ideal time for 1 cycle will be 18 minutes instead of 20 minutes. 36 CY / (18 minutes * 1hr/60 min) = 120 CY/hr which is an answer choice. Correct me if am wrong. Thanks!
It specifies that it takes 14 minutes to dump the material (plus the time to load the truck) which I think means that dumping the truck takes 14 minutes.
Hey, Mark really appreciate your amazing review series. One problem I have with number 3 is that I am in the inspection side and reviewed our contracts. So I guess if its an engineer design contract its only based on the design. The indemnification clause reads: "Subconsultant shall defend, indemnify, and hold harmless CONSULTANT, Client and their respective officers, directors, employees and agents from all claims, costs, damages, liabilities, losses, expenses, and reasonable attorneys’ fees, including, without limitation, those losses attributable to bodily injury, sickness, disease or death, or to injury to or destruction of tangible property, arising from or incurred in connection with Subconsultant’s performance hereunder, to the extent caused or contributed to by (1) any negligent act, error, omission, (2) failure to properly and timely perform the Services under this Agreement; (3) infringement of any patent, trademark, or copyright; or (4) any other breach of this Agreement by Subconsultant, its agents, servants or employees or any subcontractor engaged by Subconsultant, anyone else directly or indirectly employed by Subconsultant, or anyone for whose acts Subconsultant may be liable in any other way related to this Agreement".
Thanks for the comment. I appreciate the real clause that you bring up here. I'm not a lawyer, so take my interpretation with a grain of salt and do not use it as legal advice.... but I have read many contracts. The thing I like about this indemnification clause is that it is limited. It's not for any claim that arises, but is specifically linked to (1) negligence, (2) failure to meet the schedule, (3) basic infringement, (4) a breach of the agreement. The way I read this is, as an inspection company, if you are negligent or fail to show up for a pour and make everyone wait, you can be held liable. On the other hand, you are not necessarily made to pay if someone just claims you did something wrong.
On question 16, the estimation of concrete volume question, doesn't just the outside perimeter to estimate the concrete volume result in you overestimating the volume? Won't the concrete overlap at the corners resulting in you doubling the amount of concrete in the corners? If you break up the foundation into rectangular areas and calculate, you get 43.44 yd^3. Side note, thanks for these videos! I really appreciate you making these!
Hi Mark, for Question 13/Question 94 in the practice exam, what if we have 17 min for cycle time & 20 min for loading time and we have four trucks? are we using the same idea or since we have one truck available to load the ideal production will be the truck volume/time to load one truck?
Mark, for question 16: when finding the volume of concrete for the 4" thick slab shouldnt you subract 48 square feet from the 3 4 x 4 footings? The way you did it implies the 4 inch slab is poured in addition to the 4 x 4 x 1 footings. It barley affects the final answer but just wanted to check
The dashed or hidden line indicates the footing is below the slab, so you have both. I could have included another detail showing the footing and slab. Typically, in real construction documents you would have a footing detail showing that. For this problem, the slab would be poured in on top of the footing.
For question 16, although this would make the problem SO MUCH more time consuming, since we were given information about bar supports, shouldn't be subtract out the volume they take up?
For question 13, if look closer at the third 20 minute cycle---at 40-46 min we load the truck A, but truck A can only finish dump these material by 46+14=60 min, and truck B, C wont make it within 1 hour. How can we account the full 20 min cycle=12x3 yard^3? Thanks
Hi Matt, Your videos are awesome! Thanks very much! I had a doubt regarding the last part of Q16; While subtracting the volume of 3 spread footings from the volume of the slab, shouldn't it be the area of footings x thickness of slab (4") and not the thickness of footings (1')? i.e. 3x(4'x4'x(4/12)') instead of 3x(4'x4'x1')?
The time to load is 6 minutes, then the truck needs to haul and dump for 14 minutes for a total cycle time of 20 minutes. In a perfect world, the excavator will sit idle for 2 minutes each cycle.
@@MarkMattsonPE I think you need to update your question for the problem. In the parentheses it says the 14 minutes INCLUDES the load time NOT just the dump and travel. This would mean that the loading took 6 minutes and the travel/dump time only took 14-6=8 minutes. Seeing you work through the problem though I can see what you meant by it. I just hope the FE exam is more clear in the wording of the problems.
You are correct. Mark added an extra ~0.6 CY of pavement to the total. If you exclude that extra, you get 44 CY total. Maybe that's what he meant in the problem statement by "do not include waste". Slab: [(30-2)' x (40-2)' - 3(4x4)'] x (4/12)' = 12.5 CY vs. 13.1 CY calculated (0.6 CY difference).
Hi Mark Thanks for sharing your knowledge - Question 11 I calculated the total number of hours x 60%, then multiplied the answer with the total hourly wages. I get the same answer. Is that correct?
hello, on question 16, could you clarify more on why 2ft was subtracted from 40ft and 30ft when calculating the area for the slab volume? I think im having a hard time visualizing this problem.
The wall thickness is 1 ft... so the slab area is 40 ft (outside dimension) - 2 * 1 ft (wall dimension). The slab is inside the walls. I hope that helps!
Hope they didn't ask for any favors from the Engineer. Btw how does an Consultant Engineer afford that Lamborghini in your driveway? Fuggeddabout it Mark, we'll bring it up during Ethics week hahaha
Assuming you've already done lots and lots of practice problems including a practice exam, then just relax, trust the process and review a few key areas like statics. You've got this!
For question #16 you calculated the slab area as (A)slab = (40ft - 3ft)*(30ft - 3ft); (A)slab = 355ft^3. However, in "Foundation Section A" it appears the slab starts 1.5 ft in from the edges not 1 ft, which leads me to believe (A)slab = (40ft - 1.5ft)*(30ft - 1.5ft); (A)slab = 333 ft^3. Also based on both the problem statement and the drawings, I assumed the (A)steel should be subtracted from each of the (A)concrete sections. Is there are reason you decided to not do this that we should be aware of? With the question in mind above I am confused about the "#5 Dowels @ 12" O.C. (1'x2.5')". I don't understand how the units work out with this component. The #5 indicates a 2-dimensional area of 0.31 in.^2. However, 2-dimensions are provided for the dowels, which results in 4 dimensions. How do you properly calculate the area for the dowels?
sorry but question 11 does not make sense to me. You make it seem that the 4 workers are not working the full 9 hours. You make it seem like within the 9 hours, each worker is only working 2.25 hours. In real life all 4 workers would be payed the full 9 hrs. (9/4) = 2.25, (2.25*45)=101.25
I don't get it either. The problem says nothing about 'crew hours,' but instead the hours it takes to place a ton of steel. 9 tons an hour x 45 tons is 405 hours multiplied by $113 /hour is $45,765 and then add the burden.
@@Joel-ml4es Your comment has a typo. The problem states 9 hours a ton. Your calculations were correct. With the labor buden, the total labor cost is $73,224. I think this should have been the answer to the question. When Mark divided his answer by four, it appears that he calculated the total labor cost PER crew member rather than the total labor cost of the entire crew.
Found out that I passed my FE yesterday… this video (and many others) was super helpful. Thanks 🙏🏽
I passed the FE 17 years after graduation thanks to Mark's videos.
Just want to say thank you for these review videos. I just passed my FE exam on the first try because of these videos and PrepFE practice problems after being two years out of college. Thanks so much for taking the time and effort to make these review videos!!
Thank you Mark, just found out I passed. I really appreciate your hard work and am grateful for your review videos. Onward and upward!
Dude, you were on fire at the end of this video! So funny!
Thanks! Question 16 helped me understand how to identify a square vs. a continuous footing. I am starting to see this during my PE review! Much appreaciated!
Nice job here with great coverage and excellent commentary/examples!!
Question 2: Being a CM for a County, construction begins after permitting and you need a final design to acquire permits.
Thank you Mark! I watched all your videos and I just passed the FE.
hi. did you pass just watching his videos?
For question 13, the problem states that the time to load the truck is included in the 14 minutes, meaning that (14min-6min)=8min to dump only. So the excavator will not be idle for 2 minutes since truck A will be back within 8 minutes. Therefore, the ideal time for 1 cycle will be 18 minutes instead of 20 minutes. 36 CY / (18 minutes * 1hr/60 min) = 120 CY/hr which is an answer choice. Correct me if am wrong. Thanks!
did you get the answer?
It specifies that it takes 14 minutes to dump the material (plus the time to load the truck) which I think means that dumping the truck takes 14 minutes.
I thought so too
I agree, really the problem should say (NOT including the time to load the truck).
incredible as always. Thanks Mark
Thanks again!
You are amazing! Thanks a ton
Hey, Mark really appreciate your amazing review series. One problem I have with number 3 is that I am in the inspection side and reviewed our contracts. So I guess if its an engineer design contract its only based on the design.
The indemnification clause reads: "Subconsultant shall defend, indemnify, and hold harmless CONSULTANT, Client and their respective officers, directors, employees and agents from all claims, costs, damages, liabilities, losses, expenses, and reasonable attorneys’ fees, including, without limitation, those losses attributable to bodily injury, sickness, disease or death, or to injury to or destruction of tangible property, arising from or incurred in connection with Subconsultant’s performance hereunder, to the extent caused or contributed to by (1) any negligent act, error, omission, (2) failure to properly and timely perform the Services under this Agreement; (3) infringement of any patent, trademark, or copyright; or (4) any other breach of this Agreement by Subconsultant, its agents, servants or employees or any subcontractor engaged by Subconsultant, anyone else directly or indirectly employed by Subconsultant, or anyone for whose acts Subconsultant may be liable in any other way related to this Agreement".
Thanks for the comment. I appreciate the real clause that you bring up here. I'm not a lawyer, so take my interpretation with a grain of salt and do not use it as legal advice.... but I have read many contracts. The thing I like about this indemnification clause is that it is limited. It's not for any claim that arises, but is specifically linked to (1) negligence, (2) failure to meet the schedule, (3) basic infringement, (4) a breach of the agreement. The way I read this is, as an inspection company, if you are negligent or fail to show up for a pour and make everyone wait, you can be held liable. On the other hand, you are not necessarily made to pay if someone just claims you did something wrong.
@@MarkMattsonPE Thanks for the reply and I do agree with you! Let your fans know where we can go to support you!
@Patrick Moseley people like you are the best! sites.google.com/view/markmattsonpe/about
Thank you Mark, you are the best great job
On question 16, the estimation of concrete volume question, doesn't just the outside perimeter to estimate the concrete volume result in you overestimating the volume? Won't the concrete overlap at the corners resulting in you doubling the amount of concrete in the corners? If you break up the foundation into rectangular areas and calculate, you get 43.44 yd^3. Side note, thanks for these videos! I really appreciate you making these!
Hi Mark, for Question 13/Question 94 in the practice exam, what if we have 17 min for cycle time & 20 min for loading time and we have four trucks? are we using the same idea or since we have one truck available to load the ideal production will be the truck volume/time to load one truck?
Mark, for question 16: when finding the volume of concrete for the 4" thick slab shouldnt you subract 48 square feet from the 3 4 x 4 footings? The way you did it implies the 4 inch slab is poured in addition to the 4 x 4 x 1 footings. It barley affects the final answer but just wanted to check
The dashed or hidden line indicates the footing is below the slab, so you have both. I could have included another detail showing the footing and slab. Typically, in real construction documents you would have a footing detail showing that. For this problem, the slab would be poured in on top of the footing.
Thank you!
For question 16, although this would make the problem SO MUCH more time consuming, since we were given information about bar supports, shouldn't be subtract out the volume they take up?
bar is going to be less than 1% of the volume, also the quantities irl are always given without removing the bar
For question 13, if look closer at the third 20 minute cycle---at 40-46 min we load the truck A, but truck A can only finish dump these material by 46+14=60 min, and truck B, C wont make it within 1 hour. How can we account the full 20 min cycle=12x3 yard^3? Thanks
Hi Matt, Your videos are awesome! Thanks very much!
I had a doubt regarding the last part of Q16; While subtracting the volume of 3 spread footings from the volume of the slab, shouldn't it be the area of footings x thickness of slab (4") and not the thickness of footings (1')? i.e. 3x(4'x4'x(4/12)') instead of 3x(4'x4'x1')?
Bichara, reply garena?
Mark, Please for question 13: I think he means the total time including the time to load the truck is 14 min. am I right?
The time to load is 6 minutes, then the truck needs to haul and dump for 14 minutes for a total cycle time of 20 minutes. In a perfect world, the excavator will sit idle for 2 minutes each cycle.
Thanks for your time, effort, and everything.
@@MarkMattsonPE I think you need to update your question for the problem. In the parentheses it says the 14 minutes INCLUDES the load time NOT just the dump and travel. This would mean that the loading took 6 minutes and the travel/dump time only took 14-6=8 minutes. Seeing you work through the problem though I can see what you meant by it. I just hope the FE exam is more clear in the wording of the problems.
On question 13, I still don't understand how can an excavator with a bucket capacity of 1.5 cy load at a rate of 2cy/min?
that is very Good Notice
On question 16, for the Slab Vol
I think you need to subtract the 3 column footings?
You are correct. Mark added an extra ~0.6 CY of pavement to the total. If you exclude that extra, you get 44 CY total. Maybe that's what he meant in the problem statement by "do not include waste".
Slab: [(30-2)' x (40-2)' - 3(4x4)'] x (4/12)' = 12.5 CY vs. 13.1 CY calculated (0.6 CY difference).
typically the column footing would bear beneath the slab and therefore would not be subtracted. the slab would bear on top of the column footings
Hi Mark Thanks for sharing your knowledge - Question 11 I calculated the total number of hours x 60%, then multiplied the answer with the total hourly wages. I get the same answer. Is that correct?
For Question 16 why didnt you subtract the rebar from the concrete
hello, on question 16, could you clarify more on why 2ft was subtracted from 40ft and 30ft when calculating the area for the slab volume? I think im having a hard time visualizing this problem.
The wall thickness is 1 ft... so the slab area is 40 ft (outside dimension) - 2 * 1 ft (wall dimension). The slab is inside the walls. I hope that helps!
Hope they didn't ask for any favors from the Engineer. Btw how does an Consultant Engineer afford that Lamborghini in your driveway?
Fuggeddabout it Mark, we'll bring it up during Ethics week hahaha
Q.17-How come the HSS tube steel square is not considered in the calculation?
The question only asks for beams and girders. The HSS sections are columns and excluded from the problem statement.
Can’t you do number 15 without doing any calculations?
Of course. It's entirely up to you. Mark is showing how you can solve it using the FE Handbook
After 5 days I have my FE exam. Do you have any tips or recommendation ?
Assuming you've already done lots and lots of practice problems including a practice exam, then just relax, trust the process and review a few key areas like statics. You've got this!
@@MarkMattsonPE Thank you
For question #16 you calculated the slab area as (A)slab = (40ft - 3ft)*(30ft - 3ft); (A)slab = 355ft^3. However, in "Foundation Section A" it appears the slab starts 1.5 ft in from the edges not 1 ft, which leads me to believe (A)slab = (40ft - 1.5ft)*(30ft - 1.5ft); (A)slab = 333 ft^3.
Also based on both the problem statement and the drawings, I assumed the (A)steel should be subtracted from each of the (A)concrete sections. Is there are reason you decided to not do this that we should be aware of?
With the question in mind above I am confused about the "#5 Dowels @ 12" O.C. (1'x2.5')". I don't understand how the units work out with this component. The #5 indicates a 2-dimensional area of 0.31 in.^2. However, 2-dimensions are provided for the dowels, which results in 4 dimensions. How do you properly calculate the area for the dowels?
sorry but question 11 does not make sense to me. You make it seem that the 4 workers are not working the full 9 hours. You make it seem like within the 9 hours, each worker is only working 2.25 hours. In real life all 4 workers would be payed the full 9 hrs. (9/4) = 2.25, (2.25*45)=101.25
Lunch isn't paid
I don't get it either. The problem says nothing about 'crew hours,' but instead the hours it takes to place a ton of steel. 9 tons an hour x 45 tons is 405 hours multiplied by $113 /hour is $45,765 and then add the burden.
@@Joel-ml4escheck your units
@@Joel-ml4es Your comment has a typo. The problem states 9 hours a ton. Your calculations were correct. With the labor buden, the total labor cost is $73,224. I think this should have been the answer to the question.
When Mark divided his answer by four, it appears that he calculated the total labor cost PER crew member rather than the total labor cost of the entire crew.
DO is not dissolved oxygen...what a great joke there