K19 - Engineer Boards
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# K19

Senior Member

84

## Community Reputation

6 Neutral

• Rank
The Widowmaker

## Previous Fields

• Engineering Field
Water Resources / Environmental / Civil / Transportation
PE
• Calculator
TI
• Discipline
Civil

## Profile Information

• Gender
Male
• Interests
Things, Stuff
1. ## Things I hate more than Project Wise

Waiting 15 seconds just for ArcMap just to open a dialog window Waiting 15 seconds for ArcMap to open a second sub-dialog Waiting 30 seconds for ArcMap to open a processing tool I'd take track changes over Project Wise any day though
2. ## Trajectory method to calculate discharge of tube well and pipe outlet

Do you have equations in English units and do they work with embalming fluid?
3. ## Mortgage Providers

So the property is along a tributary of what appears to be a major watercourse - it is helpful that the base elevations have been established along the latter through detailed study is beneficial, though how helpful... it really depends on what tools an engineer in your area has to work with. Assuming the tributary is ungauged, one would need to estimate peak flow at this point along the tributary by other methods - I'd first look at FEMA's Flood Insurance Study (these are the publicly available reports describing how the FEMA maps were developed) for the major watercourse to see what's published for catchment areas and computed flows (both upstream and downstream of the confluence), then to see if their are any relatively recent USGS regional regression models for estimating flows in ungauged catchments. After that there is the matter of evaluating the hydraulics of the watercourse, controls (e.g. culverts), etc. to determine the flood elevations associated with those peak flows, which can range from simple to very complex. If you already have a surveyor ask them if they have an engineer that they call upon for this sort of work, and see if they can give you a quote. HTH!
4. ## Mortgage Providers

The flood zone issue is a bit more involved. A "Zone A" designation indicates that it is the likely extent of the 1% annual chance (fka 100-year) flood, but FEMA has not established a flood elevation, at least one accurate enough to hang their hats on. In contrast, areas where FEMA has determined the 1% floodplain through detailed study are designated "AE" with the base flood elevation indicated. I'm less familiar with the legal mechanics of flood insurance, but it seems that when in doubt officials generally operate on the presumption that you're in the more stringent flood area unless you can demonstrate to the contrary. So if you're toeing the line of a Zone A, you actually need a civil engineer as well to estimate the flood flows and depths occurring in the area (by accepted engineering methods) to then compare to the elevations of the structure/property. I've done 4 or 5 of these studies myself and my general takeaway has been that FEMA is quite conservative when drawing up Zone A limits, i.e. even employing the most generous assumptions (rainfall/runoff, streamflow, etc.) calculated flood elevations rarely get close to the extents shown on a FIRM. So yes, owner has to pay for survey and engineering, but it usually results in not having to pay for flood insurance year in/out.
5. ## Groundwater problem #7 wrecrossfit

Decent problem. I was able to infer as much based on the data givens, though my only suggestion would be to change the question to read "48 hours after the start of pumping operations" or something along this line.
6. ## New method of power generation landmark use of fusion

Buy 4 boxes of lemon square mix, bake, and then try to making the cuts as you describe. Once you have the technique down gradually increase the number of boxes to 4,000. Any geotechnical engineer will tell you that for the first couple of miles or so the earth beneath us is completely homogeneous, isotropic, and has physical properties pretty much identical to lemon square mix. You and I are just grains of powdered sugar on top!
7. ## Critical Depth vs Normal Depth?

That's the answer I got too It's a tricky problem in that all the givens point to solving for normal depth using Manning - enough red herring to make a fine stew. At least they weren't so cruel as to include the normal depth solution in the answer choices.
8. ## Airport Antics

http://www.9news.com/story/news/travel/2015/04/14/tsa-agents-fired-for-conspiracy-to-fondle-passengers-at-dia/25767781/ Uhhh, yes please... Is that one of them newfangled floating detectors incorporating hoverboard technology?

The trick with problems like these is to work in the coordinate system of the corpse
10. ## Water Resources Study Module

I tried to access it back when I was studying for the exam back in 2012 (creating a pbworks account, etc.) and got nowhere, so I'm inclined to write it off as being dead. If this is indeed the case the topic should probably be unpinned & binned. Also, the WR&E exam specs have recently changed so some of whatever material was on there is probably no longer applicable.
11. ## LEED Green Associate, bring it on!

Just signed up to take the GA (sorry, Green Associate™) exam in April at the behest of my employer, who's also footing the bill. Working primarily in civil/environmental/transportation we have very little use for LEED, though apparently there's some work on the horizon for which we need at least one credentialed person on the team - I realize the GA (sorry, Green Associate™) is more or less a "hey, I know green building stuff & how LEED works" and doesn't carry any weight beyond that, though apparently it fulfills the requirement so... anyway this exam better be some straightforward shizzle, I've got 2 young kids at home so most of my Core Concepts reading will be while sitting on the toilet! (j/k but pretty close)
12. ## Suspended for having an imagination

lol at "Bobo Baggins" in article
13. ## Culverts- AM

Culverts by their nature can be quite tricky to analyze, model, & design... there are an array of variables to consider (headwater and tailwater conditions, inlet and outlet configurations/losses, friction loss through the pipe itself, etc.), and depending on these the culvert may behave more like an open channel or more like an orifice, may have a hydraulic jump or not, etc. Even in practice with computer programs like HY-8 and HEC-RAS to do the heavy number crunching, a lot of simplifying assumptions are very much the norm. I agree that the CERM does a fairly good job in covering this topic, though rest assured that if there is anything culvert-related in the a.m. breadth portion, it's most likely going to be a simple definition or concept type question. "Culvert design" is a bit of a stretch for an a.m. syllabus topic as I wouldn't (and the good people at NCEES shouldn't) expect a non-hydro engineer to be able to "design" a culvert.
14. ## Tennessee Professional Privilege Tax baby for PE...

What a crock of BS. Coming soon, the sunshine & fresh air taxes. Good to see state gov't making real strides in things like determining what officially constitutes tennessee whiskey.
15. ## Looking for the 2008 NCEES Transportation Practice Exam

Gee I wonder why someone who just PMd me yesterday no longer wants to buy my used copy. Thanks!
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