Hydraulic Engineer Career Training Guide

Question: For hydraulic rams is there a table that shows how far i could carry water for 100psi and 3/4 in delivery pipe? It is for a school science project. I've looked online but nothing. Is there any Hydraulic Engineers that could help?

Answer: Flow chart. Most irrigation companies have them for free but you need to know how to read them.

Question: storm water runoff engineer formula's for parking lots? Hydraulic Engineer formula's for runoff from a parking lot, located in southwestern Pennsylvania. Specifically what size drain and pipe would be required for a 5,696 square foot impermeable lot, under what type of rainfall, i'm not sure what the average svere storm inches per hour is for this part of the country, if that info. was provided it would be helpful, thanx in advance. AL

Answer: the amount of rainfall would be good but this isnt necessarily how its calculated but if you can determine the amount of estimated flow then you can get the size of the pipe needed. i supplied a link below that you would use in reverse as it is for the same thing but to get the amount of water flow. so again you would run it in reverse and this is typically how its done for drainage systems. now the easiest way to do this is to contact your local building code department who will inform you of the size of pipes that are required for your area. they have already done these calculations based on your rainfall in this area and can give you the answers you seek for proper drainage and will ensure you meet the requirements and pass inspection. additionally the amount of drop in level for each foot of concrete to ensure the runoff and if your in town how to integrate it into the drain systems on your street http://answers.yahoo.com/question/index;_ylt=AiXx01bETniF0RBDd9EIonPty6IX;_ylv=3?qid=20091116015836AAyhL0l&show=7#profile-info-64W6LYz3aa

Question: what project can i do for my engineering hydraulic and pneumatic project? i'm in college and need help :/

Answer: For a project you could do something like look at a hydraulic or pneumatic device and say there's something wrong With it and you need to repair the line or the nuts on the line need tightening up because of leaking oil or air. You also need to mention the Health & safety you carried out on that device and how you over come hurdles to fix it and how long the project took from start to finish. Also keep a log of the work carried out. Or if you are going to make a product you could design a new system for some new equipment etc. Hope this helps :o)

Question: I would like to work in US. How to search the vacancies?? Hai, I am Hydraulic Engineer.I would like to work in US company. I am a Hard worker.I have three years experiance in design the hydraulic circuits and Powerunit layouts and acceries.How can i search a suitable job ib US??? Can you help me anybodies?? Thanks,,

Answer: try http://www.oil-offshore-marine.com/jobs/Engineering_Hydraulic-Pneumatic_jobs.php

Question: How to calculate the water depth on the surface of spillway? My question is related to Spillways . I would like to calculate the water depth on the spillway so that I can decide the height of side wall. I know that you can use energy equation to calculate the depth downstream of the spillway but how can I calculate the water surface profile , any hydraulic engineers out there ??

Answer: http://www.springerlink.com/content/e380q6110vq6x430/ Here you can get some ideas.

Question: Importance of Bernoulli's theorem in hydraulic engineering and it's application? 10 marks (point forms pls) tomorow having the test ..hehe. Pls reply asap

Answer: The importance of Bernoulli's Theorem to a hydraulic engineer, is that he or she can't do their job without it. So if you don't know how to use it, STUDY NOW OR FAIL. If you don't learn it, properly, while you can, you have no right to be an engineer. You will endanger lives with your lack of knowledge.

Question: I'm designing a hydraulic scissor lift. I have 2 platforms how do I lift them at the same rate w/ var. loads? I am an engineering student. I have 2 platforms that need to rise at the same rate no matter the load difference between them. Both platforms must rise together no matter the load. I am using a hydraulic system with one hydraulic cylinder per platform. I have hit a brick wall.... any help would be great. Thanks :)

Answer: Well... I think you can use two distance sensors of what ever type... for examples those resistive ones that have a proportional relation between distance and resistance. The varying resistance is translated into a proportional voltage and then, both voltages can be fed into a voltage comparator. Voltage comparator provides you a 3-state signal that indicates whether the comparison is <, > or = This 3-state signal can be fed to some logical or electronic element that will activate the necessary pump.. now as I am typing my answer I realize that can't be 100% valid because it is an analog activation decision (more less) rather than digital or discrete (ON OFF) decision. Nevertheless, I am keeping the answer because I beleive you still can use this electrical approach but you might need some special controller instead of the 3-state one. Sorry for the long answer :)

Question: Physics....What is the volume of water that fell on the town in acre-feet? Hydraulic engineers often use, as a unit of volume of water, the "acre-foot", defined as the volume of water that will cover 1 acre of land to a depth of 1 ft. A severe thunderstorm dumps 2.9 in. of rain in 30 min on a town of area 24 km2. What volume of water, in acre-feet, fell on the town?|

Answer: Convert square kilometers to acres. Convert inches to feet. Multiply town area by height of rainfall. -

Question: Help Guys Im stumped on this Physics question? Hydraulic engineers in the United States often use, as a unit of volume of water, the acre-foot, defined as the volume of water that will cover 1 acre of land to a depth of 1 foot. A severe thunderstorm dumped 5.0 inches in 30 minutes on a town of area 22 km2. What volume of water, in acre-feet, fell on the town? Thanks you guys :)

Answer: First convert the area to acres to make this easy. 1 km² = 247.11 acres 22 km² = 5,436.32 acres 1 acre-foot = 12 inches·1 acre 5/12·5,436.32 = 2,265.13 acre-feet of water

Question: how engineers use liquids as lubrication, fuel and to make things move in hydraulic machines?

Answer: We use liquids such as oils to cushion contacting surfaces which reduces the coefficient of rolling friction between moving parts. We can also use solids such as teflon and graphite, and gases such as air in air bearings for lubrication. Any liquid that has potential energy stored in it can be burned and used as a fuel. In hydraulics we use the fact that liquids are incompressable and the principal of fluid displacement to actuate cylinders and move machines. I don't know if you needed a scientific answer or just a general answer, this is the latter.

Question: Volume in acre feet of total rainfall in town? Hydraulic engineers often use, as a unit of volume of water, the "acre-foot", defined as the volume of water that will cover 1 acre of land to a depth of 1 ft. A severe thunderstorm dumps 1.9 in. of rain in 30 min on a town of area 32 km2. What volume of water, in acre-feet, fell on the town?

Answer: Okay 1 acre-foot = (volume of water) 1 acre at 1 ft or 1 acre-foot = (volume of water) 1 acre at 12 in. So, there are 7907.372 acres in 32 km^2. So, (volume of water) 7907.372 * 1 acre * (1.9/12) 12 in = 7907.372*(1.9/12) acre-foot = 1252 acre-foot.

Question: Where can I obtain hydraulic laboratory equipment for our engineering school? B.sc level? We train technicians and enineers in civil and rural enineering We have already got an open channel circiut , We need something like a pump test bench -- lab model), set up to measure or/and demostrate head loss . etc

Answer: Please refer to the following web sites

Question: how to calculate all specifications for new hydraulic power pack.? i am working has fresh engineer i want to purchase new hydraulic power pack how i can select it

Answer: Your basic selection criteria start with flow rate @ pressure. This is going to depend on what you are trying to do, but you will find a direct correlation between the horsepower input of the pump motor and the combination of flow at pressure. Note that it is possible to make low flow at high pressure, or low pressure at high flow, but it takes a lot of power to both. A suggestion is to calculate the amount of power your require (force X distance / unit of time) and convert that to horsepower, then look for an HPU at www.Grainger.com that is about 2X that horsepower.

Question: Design Engineer dream ? How to become a design engineer? I have strong desire to change my career and work as Design Engineer. I am a Mechanical Engineer and work in ASU operation and maintenance department as operations & maintenance engineer. I like playing with engineering laws and physics in order to make creative designs. I have many great ideas to generate power from different renewable sources and like to play with hydraulic laws to make useful tools. I am good in math but not excellent and my drawing skills need more development. Can I become design engineer?

Answer: Kuzimi, no reason not become a design engineer, right? If you work at ASU you likely know where the Dean of Engineering office is located; schedule an appointment as a prospective student. Regardless of whether you end up talking to the Dean, see if the Dean or a faculty member can talk to you about the classes required for the college to certify you as the type of design engineer you wish to become to fulfill your dream You might also consider contacting the placement office to get information on the job prospects once you have your education, and the success rate engineers have acquiring the work you want based on their major (I see both Mechanical Engineering and Electrical Engineering possibilities in your statement). If you have time on the 'net, visit the engineering society sites and consider attending their meetings and meeting some engineers who are currently working the field of your choice. I'm a non-engineer but have found society meetings very friendly toward recruits. Good luck!

Question: Do anybody know about courses for pneumatic? I am a mechanical engineer and interested in pneumatic and hydraulic systems. Anybody knowing professional courses for pneumatic & hydraulic ckt design? It should preferably from pune!

Answer: For Pneumatics contact FESTO India For Hydraulics contact either Rexroth or Bosch.

Question: What is best solution for failing septic system? I have a hotel with septic system that is failing, causing wastewater to surface on the parking lot out of the sewers. One engineer has recommended a newer technology, involving aerating the septic system. The company that provides this technology is very expensive but may be a more economical alternative to replacing the entire septic system. The company has this about how it deals with the problem: "Air is injected into the leach field and travels into the surrounding soil. The oxygen in the air allows the soil microorganisms to thrive and reach unprecedented population levels. In a process similar to composting, this oxygen allows the microorganisms to reduce (eat) the accumulated organic matter, unclogging the leach field and allowing the wastewater to infiltrate into the soil. Within a few weeks, the leach field is back to its original hydraulic capacity." Basically, an electric pump and fan type device. More info at soilair.com. Its expensive and i'm sure there are other companies that can provide better competitive pricing. I wasn't really able to find any online. Does anyone have any suggestions, experience here for dealing with this type of problem. The septic system I have has two 2000 gallon capacity tanks. Thank you!

Answer: I'm thinking scam too. Our system failed because the ground would no longer accept water. Salts from detergents, soaps, etc finally caused the soil to deflocculate......that is the soil particles tend to repel one another instead of aggregating thus forming pore space for the water to go down. Instead of pumping every year we were pumping every month and still the water ran back from the leach field during pumping. Only solution was a new drain field. Fortunately for us the municipal sewage line finally reached us. I'd be doing some calling around asking about this system being proposed. One thought is your Cooperative Extension agent for your county. Call and ask if they have an Extension Ag Engineer to answer questions about sewage systems/drain fields. Some states to. These engineers aren't out to to sell you anything, but to provide information. Also contact your state department of health and find someone who has heard of the system and whether it actually works. Better to talk to them before you spend thousands on something that won't work than to be visited by them for disposal violations. Finally, I remember our pump guy said we could extend our drain field , just hook up to the existing lines and go out further. I guess that's like a new drain field........ The school behind us put in a "constructed wetlands" to process the sewage. http://www.constructedwetlands.org/cw/index.cfm there's more info on it on the web.......

Question: What is a rectangular cylinder? I am curious to know if rectangular prisms are also, wrongly, called rectangular cylinders? I am reading a Master Thesis on hydraulic engineering and it talks about cylinders but all the images are rectangular prisms.

Answer: In hydraulics a cylinder is a general term referring to the device that inputs force into the system (hydraulics are force systems, not pressure systems!). By referring to it as a rectangular cylinder, they simply mean an input device that is rectangular in cross-sectional area. This may make calculations easier since the area of a rectangle is more simple than a circle (rectangular area is usually an integer value, while circles contain irrational values (pi)).

Question: Internal Hydraulic compression engine ? Hydraulic engines powered by hi Amp.200to 300amp alternators controlling systems... Enough power to pull a one story house off of the Frame...Ahh! freedom as you pass gas stations for the rest of your lives...(Tooth picks sold separate ) ( Engineered stroke may vary ) 300 amp Designed Alternator only works after system is fired up..That was a silly reply. Try getting a engineering degree and figure system design out for yourself...

Answer: where do the 200 to 300 amp alternators get there power from? and what is your question?

Question: pneumatic and hydraulic? what is hydraulic and what is pneumatic? from what i search in google and yahoo answer is pneumatic is something that uses compressed air in a system and hydraulic is a system that use liquid. but my problem is that is pneumatic and hydraulic system..im looking for what is hydraulic and pneumatic can someone elaborate what is hydraulic and pneumatic..something like hydraulic is a topic in applied science and engineering dealing with the mechanical properties in fluids.

Answer: Fluid power systems are often used to power and/or control equipment and machines. Both pnuematic and hydraulic systems have pumps that pressurize the fluid, pipes to convey the fluid to/from the pump and equipment, control valves to control the flow of fluid, and often things like filters/dehumidifiers/seperators to cleanse the fluid. Pneumatic systems use gas, and generally have compressors that act as the pump. Air is normally used, but other gases can be used. Typical applications are automotive repair facilities and machine contol, or vacuum systems like in automobile power brakes. The repair facility has a big air compressor that powers pnuematic tools, like impact wrenches or drills. Pnuematic tools are cheap, lightweight, durable, insensitive to dirt/water, and don't overheat. But they are energy inefficient. In factories, pnumatics are often used to power and/or control machines. For example, presses can be powered by a large air cylinder, or defective parts can be automatically pushed off a conveyor belt by a pneumatic cylinder. In cars, vacuum from engine manifold is used in power assist brakes. Typically cheap, decent amount of force, fast actuation. However, speed and position of pneumatic cylinders are difficult to acurately control, and poor power efficiency. Pneumatics and vacuum systems used to be used to control air conditioner systems and many other types of machines. These control applications are now often controlled by digital computers or Programmable Controllers. Hydraulics use essentially incompressible fluids. They are suited for high speed, high forces, precise control. More expensive that pneumatics, cheaper than electrical systems. Typically messy, rarely overheat, very rugged. More efficient than pneumatics, less than electrical/electronic. Electrical/electronic systems are becoming cost competitive as improved sensors, controllers, and actuators become available. Typical applications are in construction equipment and aircraft controls. Both pneumatics and hydraulics are studied in Mechanical Engineering courses. First is a fluids course, both statics and dynamics. Later studied in controls courses. Used in design courses as well. Engineer courses teach you how to analyze and design fluid power systems. Lots of the details are not covered in most schools, and you have to study manufacturer literature when you design the equipment. At the technician level, courses are oriented toward building and maintaining systems, especially construction equipment, a major application of fluid power. Finally, there are fluidics. These are digital control circuits or even computers made from fluid power components. Used for hostile environments like nuclear reactors, where electronics get zapped by radiation. Also covered in control courses.

Question: i need the design of hydraulic bottle jack, please help me I couldnt get it.? Im a mchanical engineering student and I need to find the drawing of all the parts of hydraulic bottle jack. Im tired searching it on google can anyone help.

Answer: http://www.mtadistributors.com/ipl/parts_lookup.php?model_key=101&model_num=453312&vendor_num=12250&part= Tired already? Google, 10 seconds. Causes of being tired: It is typically the result of working, mental stress, jet lag or active recreation, but also from boredom or disease or simply lack of sleep. It may also have chemical causes, such as poisoning or mineral or vitamin deficiencies. When chronic (meaning of six months or more duration) it is a symptom of nearly 30 different diseases. Post exertional fatigue, also known as exercise intolerance, is however far more rare, and is primarily found in organic brain diseases, mitochondrial disease, and neuromuscular disease. Relaxation Lack of sleep(Sleep deprivation) Pregnancy [not in your case, obviously] Pneumonia Addison's disease Anemia Arthritis Chronic fatigue syndrome (CFS) Depression Diabetes Digestion Driving fatigue Endometriosis Fibromyalgia Headaches Hyperparathyroidism Hypothyroidism Leukemia or Lymphoma Lupus erythematosus Interstitial Cystitis Mitral valve prolapse/Mitral regurgitation Mononucleosis Multiple sclerosis Muscular Dystrophy Myasthenia gravis Parkinson's disease Primary Biliary Cirrhosis (PBC) Chemical dependency Certain medications, e.g. lithium salts, ciprofloxacin Starvation Hyperthyroidism Cancer Syndrome Ejaculatory release

Question: Simple physics question about length? Hydraulic engineers in the USA often use, as a unit of volume of water, the acre-foot, defined as the volume of water that will cover 1 acre of land to a depth of 1 ft. A severe thunderstorm dumped 2.0 in. of rain in 30 min on a town of area 26 km^2. What volume of water, in acre-feet, fell on the town? Thanks for your help.

Answer: 1 square kilometer = 247.1 acres 26 square kilometers = 6424.6 acres Since only two inches fell, then an acre foot will be 2in/ 12 inches or 1/6 of the amount above. 1/6 * 6424.6 = 1070.8 acre-feet of water

Question: Hydraulic similitude (for ship models, etc.)? Can any of you physics or engineering Yahoo-ers provide to me a link to a website giving one or more worked example using algebra or other finite-difference equations (NOT calculus or D.E.s) to explain the basics of hydraulic similitude, for example in modeling the design of a ship or other floating body? Thanx!

Answer: The problem I have in responding to your request is that within my perhaps limited knowledge is that it is not all that complicated. Everything I have read says that if you build a scale model boat, you make it exact proportions and since you are not changing the viscosity of the water, you have to scale the speed in order to measure the forces in moving it. You might contact these people http://www.sintef.no/Home/Marine/MARINTEK/Ship-model-testing/ or followup on the links here http://en.wikipedia.org/wiki/Ship_model_basin Or ask at the David Taylor Model Basin http://www.google.com/search?q=David+Taylor+Model+Basin&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a

Question: Hydraulic press vocabulary french / english? I'm translating a technical description of a hydraulic press from French into English for a friend, but could do with some help. Any bilingual engineers with time to spare? Thanks

Answer: This might be a slow way of doing it, but at least it is a start. http://babelfish.altavista.com/tr

Question: Question for an mechanical engineer? Between a hydraulic piston and rod a clearance fit is used, but i want to know what the tolerances are for a vehicle and the standards can anyone help me thanks. show your calculations as well

Answer: You must first present the alloy or the material you wish to use to come up with any such tolerance. What could you possibly be studying if you are researching this question in so many locations ? Good Luck Emma

Question: Should I accept this work? I am an orphan and a bachelor, residing alone in lodgings in London. By profession I am a hydraulic engineer, with considerable working experience. Two years ago I decided to start business for myself. It was a dreary experience. For two years I have had 3 consultations and one small job. Yesterday, though, an unnaturally thin man came to my office, and asked me to go to the country, to look at a hydraulic stamping machine which had got out of gear. He promised a huge pay, but insisted on me coming after 11.15 p.m., and telling no one. He said that there was a deposit of fuller's earth in his land and they used the press to compress fuller's earth into bricks secretly because his deposit was small, and spread into the land of his neighbours. He had no money to buy that land. So, he wanted to earn money on his deposit, and then buy the adjusting land. I agreed, but now, when he went away, this story seems so suspicious and fishy to me. Should I go there at all?

Answer: Only go if you are interested in losing a digit.

Question: POLL 10pts: What do you think of this water saving product? My father is a hydraulic engineer, and is also a water conservationist. He has created this new item (it is patented) to sell to new home developers. It will save homeowners a lot of money and the item pays for itself within a year of use. Because California is going into water shortage crisis' I think this is a great time to market this. -What do you think of the product? -Would you buy it? -Where would be a good place to market it? please visit: www.autotap.net Any professional comments and ideas are greatly appreciated.

Answer: I think it's a great product!

Question: Hydraulic Pump and Motor Selection - from scratch? I am interested in a very efficient method of turning a very high torque power source (a 12 r.p.m. floating waterwheel) into something that will turn a generator 1200 r.p.m. (a 1-100 ratio) Each waterwheel might produce 2/3 - 1 h.p. of turning force. I think a good idea might involve using radial piston pumps like the ones shown here, as the pump on each waterwheel: http://www.boschrexroth.com/business_units/bri/en/products/p_pages/01_pumps/05_radialpistonpumps/index.jsp and then pump a continuous loop of hydraulic fluid between the waterwheel, and a generator mounted safely onshore. I'd probably use vegetable oil as hydraulic fluid, to be most environmentally responsible. And I wonder if a motor like this would work to turn the generator: http://www.boschrexroth.com/business_units/bri/en/products/p_pages/02_motors/02_radialpistonmotors/index.jsp I see these devices come in different sizes. What size do I need for this 1 h.p. application, and how do I attain the relationship of 1 turn of the waterwheel equaling 100 turns of the generator? I've tried to ask my hydraulic shop these questions, but they only seem to repair equipment, and they don't seem to know these answers. I'd like to know a little bit more before I try another hydraulic shop for advice, so I don't look so dumb. If you could help me out in my pursuit of knowledge here, I think this idea could be very useful in many locations as a new energy source. I'm willing to give this idea to the public domain, I don't think it could be patented anyway, and I hereby disclose this to be public domain information from here on out, anyway! In addition to the size and ratio information needed, If this is a good idea, also please tell me, and if this idea is tragically flawed somehow, please tell me that also. I'm currently using a 1-100 gear increaser, and they use 4 internal gears and produce a LOT of friction losses. I'm hoping to gain higher efficiency, and eliminate the necessity of trailing wires to the waterwheel itself, plus I think a loop of vegetable oil would be a safer environmental risk. Thank you, engineers and knowledgeable designers!

Answer: Hydraulic motors and pumps typically about 80% efficient. With both a pump and motor, gets to about 65% or so. Unlikely to beat your mechanical setup. You need help from a brilliant mechanical engineer. Hiope you know one! Best solution is to use direct drive with a high speed water wheel, and a slow speed generator. I assume you are unwilling or unable to do so. Next choice is to go with a custom designed drive chain. [Note that drive chain is the mechanical connection; it does not imply that a link chain is used]. Each stage looses more power, so fewest feasible number is desireable. 4:1 is typical max, but for a low powered application, possible to go higher. So, let's target two stages. Possible to use large gears (like a flywheel and starter pinion, but this requires tight tolerances. A chain or timing belt driven system is probably best. You can use a tensioner/idler to give compliance, allowing loose tolerances. Consider a bicycle. A human can do about 1 HP, so drive chain rating is probably about this. Front sprocket is perhaps 10" diameter, at 60 to 120 RPM's. Rear sprockets go down to about 2 or 3 inch diameter. To get 100:1 step up, perhaps 40" to 60" sprocket and 3" or so driven sprocket. Large sprocket should be attached to waterwheel axle, use same bearings. You could use a single additional shaft with the small drive sprocket and a larger sprocket, perhaps the 10" or so from the front of a ten-speed bike. I'm not fond of chain; better to use timing belts like some of the motorcycles now. You need to consider where to buy or how to make the gears economically though. This type of system should be able to transmit over 95% of the energy. There are also low friction transmissions, such as elliptical drives. Probably pretty costly. Edit: You are correct that hydraulic pistons are fairly efficient. The main losses are seal friction, with some minor pressure drops in the hydraulic circuit. Pumps though, have lots of parts and seals, and sources of friction. Commercial gearboxes tend to have low efficency. I'm not sure why, except that low cost, compact size, and manufacturability are design goals, rather than efficiency. I still think a custom design with super efficiency is the way to go. Rather than use a gear the same size as the waterwheel, why not use one small enough to stay out of the water? I'm not a big fan of chains, but a toothed belt should be able to work. To answer your questions, start sizing a system by selecting the design (max) pressure. Often 3000 psi, but both higher and lower pressures are available. Next, look at the pump. Power is the through variable times the across variable. For electricity, P = E * I. For hydraulic pump, Input Power = torque * angular velocity. A.V. is RPM * 2pi radians/rev * min/60 sec. The time conversion is optional. Output pressure is Q * P = flowrate * pressure. The difference between input and output power is loss. You will find a very large pump is needed to absorb 1 HP at 12 RPM's. It will be hard to find, as pumps are normally designed for electric motor speeds, like 1800 RPM's. Now, find a motor for the pressure and output RPM's you need. The flowrates will automatically match those for the pump, since the pressure and output speed are fixed. Datasheets on the pump and motor should indicate losses. I think you will be hard pressed to find a suitable pump at a reasonable price. High torque components are generally rare. Good luck!

Question: Hydraulic Fluid found to be leaking in actuators in Rig? We currently have a situation where the actuators are pressured to 180 bar, whereas the original working pressure is 130 bar.After 6 months, there were signs of leakages near the main body.Engineers found that the seals(Nitrile Rings) were deformed, and had some cuts, with the hydraulic fluid having some foreign particles.Where could the foreign particles come from?The seals have been changed, but is there a possibility this might occur again?

Answer: Part of the answer depends on the design rating of the actuators. If they were designed for 180 bar the seats should last for normal service life, whatever that might be. The foreign particles could be there for various reasons such as, incomplete cleaning at initial assembly, dirty oil introduced at some stage, wear particles from the hydraulic pump, although the system should have filters adequate to remove such particles. I strongly suggest that you urgently check the original specifications to ensure that you are operating within the specifications. If you are operating over design pressure the same problem will undoubtedly occur again..

Question: Good career choices with military experience? So, my husband is trying to figure out the best possible careers. He is in the airforce right now as an airforce hydraulic mechanic, but wants to get out after his 4 years is up!He is going to start taking college courses, but is sort of blank when it comes to what he should do? He is very mechanical....likes working with his hands. He seems to be interested in business? I was thinking mechanical engineer, but I think the "engineer" word scares him. I dont know!! Any suggestions?

Answer: He already has the interest and experience as a mechanic so that may be a choice. It sounds like it would lead into working with cars or truck engines. If he gets ambitious, he could go from being a mechanic to owning the shop with the added challenges of running a business. Good luck! Mechanics are needed anywhere you go and make good money. He should also learn how to do the car smog thing.

Question: Are we destroying our own earth and environment by Hydraulic fracturing? Are we destroying our own earth and environment by Hydraulic fracturing? It is a common technique used to stimulate the production of oil and natural gas. This petroleum engineering method has been used over the past 60 years. After 60 years of beatings would you finally BREAK? I believe we are really causing the destruction of Mother Earth, the earth quakes, that even cause the Tsunami's, the change in the global atmosphere, the destruction of our own environment, destroying the green forest as well as the rain forest. How much pounding can one earth take? What are your thoughts?

Answer: imagine an egg. the yolk is on one side...and the carton is on the other. now. frac the egg shell. and to yins who are sayin it cant pollute ground water and water sheds: http://www.ombwatch.org/node/10353 http://www.thevillager.com/villager_308/nofrackingway.html http://www.sourcewatch.org/index.php?title=Fracking http://www.forbes.com/2009/09/28/cabot-hydraulic-fracturing-business-energy-fracking.html http://marketplace.publicradio.org/display/web/2010/01/20/am-fracking

Question: can I find a job 4 plastic-molding m/cs mechanical maintenance engineer with experience of 30 yrs.thks v mch.? good experience in repair & maintenance of mechanical /hydraulic operated systems used in:injection ,blow, extrusion 4 pvc pipes& ps sheets (4 yugurt cups) ,theromforming m/cs,thermoset matls presses. maintenance of all related auxiliary equipements such as:crushers ,mixers,air-compressors (recprocating/rotary/screw types),water cooling towers,cooling water centrifugal pumps stations,bore-hole submersible pumps,chillers as well. maintenance of material handling equipments as:hoisting cranes (electrical&pneumatic controlled),telescopic-boom cranes,trucks, pallets,fork-lifts,&stackers. mechanical workshop m/c tools. core-pulling split-designed moulds 4 crates ,chairs, tables..etc. thoro' knowledge of[ arabic,english,french ,tech.german language] computer ms office[windows xp,word xp,excel xp,access,internet, powerpoint xp]in addition to[AutoCAD 2D/3D] HARDWORKING &DEDICATED with TRAINING SKILLS. Spare parts [mech.&hydr.]compilng &storing SKILLS 4 all the A.M M/CS

Answer: I bet you can, with all of that experience! Just check out these sites for job listings: http://www.monster.com http://www.hotjobs.com http://www.careerbuilder.com and http://www.craigslist.com

Question: physics conversion question help needed? Hydraulic engineers in the United States often use, as a units of volume of water, the acre-foot, defined as the volume of water that will cover 1 acre (where 1 acre = 43560 ft2) of land to a depth of 1 ft. A severe thunderstorm dumped 2.1 in. of rain in 30 min on a town of area 41 km2. What volume of water, in acre-feet, fell on the town? steps would be very helpful, thanks

Answer: You have to convert km^2 into ft^2, basically, before going to acres. To do that, you have to use conversion factors which are squared. For instance, 1km = 1000m becomes 1km^2 = (1000m)^2 = 1,000,000m^2. Don't forget, to get it from cm to inches, you have to use 1in = 2.54cm, which becomes 1in^2 = 6.4516cm^2.

Question: A physics conversion I'm not used to seeing.? Hydraulic engineers in the United States often use, as a units of volume of water, the acre-foot, defined as the volume of water that will cover 1 acre (where 1 acre = 43560 ft2) of land to a depth of 1 ft. A severe thunderstorm dumped 2.4 in. of rain in 30 min on a town of area 41 km2. What volume of water, in acre-feet, fell on the town? Tolerance is +/- 2%.

Answer: 2.4 in / 12 ft/in = 0.2 ft of rain 1 km = 0.621 mi 1km^2 = 0.621^2 = 0.39 mi^2 * 41 km^2 = 15.81 mi^2 * 640 ac / mi^2 = 10,119.22 acre 0.2 ft * 10,119.22 = 2023.84 ac-ft

Question: i need homework help in history? i need homework help for a history project. I need information on the second industrial revolution in America in any of these areas: Finances Government The Police Hydraulic Engineering (and it's affect on Farm life) and Information on commercial Farming. Thanks so much!!

Answer: Farm life, the Cotton Gin was made by Eli Whitney and it separated the cotton from their seeds which made it faster and easier for the farmers. They also made the John Deer plow that people back then would attach to a horse and maneuver it around their fields.

Question: another urgent physics 101 q? Hydraulic engineers in the United States often use, as a unit of volume of water, the acre-foot, defined as the volume of water that will cover 1 acre of land to a depth of 1 ft. A severe thunderstorm dumped 2.5 in. of rain in 30 min on a town of area 26.8 km2. What volume of water, in acre-feet, fell on the town? Give the answer to three significant figures

Answer: 1 acre = 4046.85 m^2 = 0.00404685 km ^2 26.8 km^2 = 6622.5 acre^2 2.5 in. over this area corresponds to 2.5 x 6622.5 / 12 = 1379.7 acre-feet

Question: Volume of water in acre-feet? Hydraulic engineers often use, as a unit of volume of water, the "acre-foot", defined as the volume of water that will cover 1 acre of land to a depth of 1 ft. A severe thunderstorm dumps 1.9 in. of rain in 30 min on a town of area 39 km^2. What volume of water, in acre-feet, fell on the town?

Answer: =39 km^2 *0.3861 mi^2/km^2 * 640 acres/mi^2 * 1.9inches * 1ft/12inches =1525.8 acre-ft

Question: Conversion problem, please help me!? Hydraulic engineers often use, as a unit of volume of water, the "acre-foot", defined as the volume of water that will cover 1 acre of land to a depth of 1 ft. A severe thunderstorm dumps 2.3 in. of rain in 30 min on a town of area 35 km2. What volume of water, in acre-feet, fell on the town?|

Answer: The key conversion factor for this problem is 1 km² = 247.1044 acres Hence, the town's area is 35 km² = 35(247.1044) acres = 8648.654 acres The depth of the rain is 2.3 inches = 2.3/12 feet = 0.191666667 feet Our final volume is 8648.654(0.191666667) = 1657.658683 acre-feet

Question: Help, physics question!!? Hydraulic engineers in the United States often use, as a units of volume of water, the acre-foot, defined as the volume of water that will cover 1 acre (where 1 acre = 43560 ft2) of land to a depth of 1 ft. A severe thunderstorm dumped 2.2 in. of rain in 30 min on a town of area 43 km2. What volume of water, in acre-feet, fell on the town?

Answer: Ans: 1970.83 Acre-feet Explanation: Town Area = 43 Km2 = 43 * (1000m)2 = 43 * 1000 *1000 *3.3 *3.3 ft2 (1 meter = 3.3 ft) = 468270000 ft2 Depth of rain = 2.2 inch = 2.2/12 ft Volume of rain = Area * Depth = 85849500 ft3 Volume of rain in Acre-ft = 85849500/43560 = 1970.83

Question: Please help with math problem...? Hydraulic engineers in the United States often use, as a units of volume of water, the acre-foot, defined as the volume of water that will cover 1 acre (where 1 acre = 43560 ft2) of land to a depth of 1 ft. A severe thunderstorm dumped 2.2 in. of rain in 30 min on a town of area 44 km2. What volume of water, in acre-feet, fell on the town?

Answer: 2.2in/44km^2(1foot/12in)=.004167foot/km^2(1 km2 / 1 x 106 m2) 4.16 x 10^-9foot/m^2(4046.86m^2/acre)=.000017 foot/acre

Question: another math question!? Hydraulic engineers in the United States often use, as a unit of volume of water, the acre-foot, defined as the volume of water that will cover 1 acre of land to a depth of 1 foot. A severe thunderstorm dumped 4.0 inches in 30 minutes on a town of area 32 km2. What volume of water, in acre-feet, fell on the town?

Answer: 4.0in = .3.0ft. 32km² ≈ 7907.3acre. Volume ≈ (7907.3acre)(.3ft). Volume ≈ 2372.2acre-ft.