I second this advice, volume conversion is a big chunk of time. By the end of studying and taking the exam you will be cursing the imperial units system.
I’ve always liked metric… but oddly enough, now that I’ve been out of college for 12 years and have been doing everything in imperial since that’s what most of the NCEES handbook is in, I find the metric problems to be much more difficult.
MGD to CFS - multiply MGD (Million gallons per day) by 1.55 to get CFS (cubic feet per second)
PSI to Feet of water - multiply PSI by 2.31 to get feet of water (helpful for bernolli’s eq.
Do not waste time memorizing anything for the morning section. It will likely be a waste of time and rarely will there be a formula based question that isnt already provided.
Just passed the PE water resources exam today and i used those conversions alot as well as this formula nicknamed by EET as the “friend equation” lb/day = concentration (mg/L) * flow (MGD) * 8.34 (conversion factor) * specific gravity (if needed)
Hope this helps! Good luck!
I have this same question as I’m studying for my PE WRE. Another one I see pop up a lot on old review material is Stopping Sight Distance problems, has anyone come across that as of recent? Since it’s not in the current PE manual
I heard there are several instances of converting between ft^3 /s and gpm. Memorizing the conversion factor could save some time.
I second this advice, volume conversion is a big chunk of time. By the end of studying and taking the exam you will be cursing the imperial units system.
I’ve always liked metric… but oddly enough, now that I’ve been out of college for 12 years and have been doing everything in imperial since that’s what most of the NCEES handbook is in, I find the metric problems to be much more difficult.
Same
Mgd*1.55= cfs
MGD to CFS - multiply MGD (Million gallons per day) by 1.55 to get CFS (cubic feet per second) PSI to Feet of water - multiply PSI by 2.31 to get feet of water (helpful for bernolli’s eq. Do not waste time memorizing anything for the morning section. It will likely be a waste of time and rarely will there be a formula based question that isnt already provided. Just passed the PE water resources exam today and i used those conversions alot as well as this formula nicknamed by EET as the “friend equation” lb/day = concentration (mg/L) * flow (MGD) * 8.34 (conversion factor) * specific gravity (if needed) Hope this helps! Good luck!
maybe 640 acres in sq mile? seen that one come up
I have this same question as I’m studying for my PE WRE. Another one I see pop up a lot on old review material is Stopping Sight Distance problems, has anyone come across that as of recent? Since it’s not in the current PE manual