As a mechanical engineer I am use to soil permeability values in LT^-1. In the petroleum industry , their engineers will use permeabily units in Darcy being equivalent to 0.987E-12(~1.0E-12)sq. meter. Are there any reference in the public domain that explains how the Darcy equivalent unit of...
My one year old Frigidaire refrigerator had to have the compressor, condenser, evaporator and filter driers replaced. It was repaired and works well now. I was looking at some pieces to de discarded and one piece of piping peaked my curiosity. it was a piece of copper tubing soldered to...
Is the shape spherical since its radius "r" is minimal at 0.8D and maximum at 1.2 D? if not which shape is it following. Looking at pictures on the net, an umbrella roof seems to follow either an ellipsoidal or parabloid shape.
I can not access data material file AGSCDROM.mat from Architectural Graphic Standards V3 on hard drive after program was copied from a CD. The program will open if I leave the CD in the CD drive.
What is the explanation for the unit of Ts being in second when Ts is equal to Sds/Sd1 both (Sds &Sd1)being spectrum response acceleration values having the same units?
I have plotted from the same computer for about 4 years with no issue. The ACAD version is 2005. Operating system is windows 7. Recently, on my attempts to plot, I get this message " an invalid hardcopy configuration" and I get no plot. What does that mean and how can I have the computer to...
I have been looking thru the ASCE library for a copy of the referenced subject. None was listed, so is chapter 15 part of a greater volume of work that has to be purchased? Since the portion of chapter 15 that I am interested deals with propane and ammonia tanks stored outside, will other...
I used to know this but it has been at least three decades since I acquired that knowledge. Is the red marking on a Mallory capacitor (4MFD, 370V) to designate polarity? If so which one would that be?
Could someone direct me to references regarding subject matter. The type of soil would be the type encountered in automotive recycling yards (junk yards) where surfaces are compacted and such surfaces may be contaminated with oils.
Can any one explain the difference in crushing resistance or toughness between the two types of bottles for the referenced beverage. I believe the P.E. is used for both bottles.
Another reference which I found in my archive and decided to reply belatedly to the above captioned thread. The Chemical Engineering periodical of June 2002 authored by Ron Darby, Freeman E Self and Victor H Edwards features "Properly Size Pressure Relief Valves for two Phase Flow."
Two questions about buried power lines: 1)Is the depth of such power line to be below the frost lines? 2) since there will be some heavy truck traffic over this power line and I expect that the soil will be saturated with storm water and snow melt, what would be the suggested protective casing...
When submitting the manufacturer's data sheet, will the partial data sheet U-2A be acceptable as a final documentation or will the National Board require the U-2 form as the final documentation for their recordkeeping?
There is a set of drawings that involves tanks and piping. The State Fire Marshal requires a PE stamp to ensure that the project is consistent with a NFPA code. Is it wise to have a conditional PE stamp for the set of the drawings with notation stating the reasons for the conditions that...
