Mechanical Engineering

A shell mesh is a series of Finite elements that use shell representation of a surface to predict the behavior of the part. Beam or solid elements would be the other choices. Shells are generally used to simulate most auto body structures.

The Kaplan turbine has variable pitch runner blades for a low head, high volume hydroelectric generating system. The Kaplan turbine is a propeller-type water turbine that has adjustable [pitch] blades. Its invention allows efficient power production in low head applications. (That means the machine works effectively with low water pressure.) It is in wide use in hydroelectric generating plants around the world where lower pressure, high volume water sources are being tapped for energy generating applications. This information was refined thanks in no small part to our friends at Wikipedia. Use the link and surf on over for more details and some cool pics.

10 - 21 foot lenghts are the most common lenghts

It's lack of tensile strength, a.k.a, the capacity of a material to withstand bending

To answer this you need to use a permutation. The correct one would be 7P3. This is because you need to preform the tests in a certain order. To work this out use 7! 7! _ = _ = 7x6x5 = 210 (3-7)! 4!

no but it has been under discussion for years

Its a cool site to show of your cars or anything tha goes fast with serious torque. I love the app...

According to project lead the way engineering curriculum, the four basic components of a fluid system are a tank to hold the fluid, a pump to drive or pressurize the fluid, valves to control the flow, and actuators to convert the fluid pressure to either lineal or rotational mechanical movement.

He has 4 other siblings.

to manage the load variations

It is not possible to blast a hole in 2 inch steel plate with a 12 gauge slug. The slug will barely dent the plate, if it does anything at all.

The thickness of the laser welding machine depends on the power of the laser generator inside the Laser Welding Machine, the thickness of the object to be welded. These two points are the most important.

'Balanced loads' apply to three-phase a.c. loads. A three-phase kilowatt hour meter will measure both balanced and unbalanced loads, when correctly connected.

The sprinkler head design. High velocity heads have longer nozzles with a venturi tube (a type of curved nozzle) which increases the velocity of the water spray. Medium velocity heads are shorter and do not use a venturi.

a designed pressure in a boiler is a little man who lives inside the boiler continually watching animated porn.

to hold planting materials. Also called wooden ox.

Just measure the elevation of the max water height above the ground (or whatever reference level you wish to use).

At 15000rpm the engine revs 250 a second and takes 0.004 seconds to spin once and 0.002 seconds for a stroke, the stroke length is 0.0425 m so take s=d/t

Therefore mean piston speed = 21.25m/s or 76.5 km/hr or 47.53 miles/hr

You are lucky if you get to know that the pipes are frozen before it bursts out. At the very first place shut off the main valve of the pipe if you experience stopped water flow. Then leave the faucets open. Do not use any flames to unfreeze the pipes. Similarly, avoid using an electric heater, hair dryer that will come directly in contact with pipe as the leaking water might cause electrocution. Use the hot rod and connect it to the pipes to thaw it. After it is done, then switch on the valve and let the water flow through it slowly. Check if it is completely defrosted. Once it is done, take a big pipe wrench and slowly take out a pipe. Also use a backup wrench so that you will not end up losing something else. Still, if you are not confident of losing it is better to call a general plumber to avoid further issues.visit:-A-general.com

Hello, I should think, that the turbine pump needs to be filled with water, before its activation, in other words before it is turned on. If you prime a vertical turbine pump and leave it then how do you stop all the fluid running back down the well? A foot valve would create a restriction at the inlet The answer is you provided a minimum submergance level in the sump above the first stage eye to prevent draw down and meet the NPSH required. Most VTP's are designed with cutlass rubber or other bearings that can run for short periods dry until the fluid reaches them.

Formula for the volume Expansion for a solid is αV=1VdVdT and Isotropic materials is αV=3αL.

Material science is very important to welding.

The way a metal is heated and cooled determines its properties. When welding is done incorrectly it can result is very weak material around the weld. A very common place to see the effects of welding is around the weld of two pipes. After a period of time, a rust ring can form on either side of the weld (not right next to it, but a small distance away). Although the weld is strong, the surrounding material is weaker.

In a machining process, a sharp tool cuts through some workpiece, generally by skimming along its surface. The "depth of cut" is the measurement of how far beneath the surface of the workpiece the tool is penetrating. The "chip thickness" is the thickness of the material being cut away.

One might think that the thickness of the removed material would be equal to the depth of cut, and sometimes it is. In that case, the chip thickness ratio is 1.0. However, depending on many other factors (cutting tool geometry, material properties, etc.), sometimes the chip will be thicker or thinner than the depth of cut, due to deformation of the chip as it is removed. This change of thickness as the chip material is being removed is defined as the "chip thickness ratio."

Well lets start with what the term Bump means. Bumping is a technique that locksmiths and now criminals are using to open locks instead of the old standard method of picking them. In short a person has a key that the same type as the lock you have i.e. you have a Kwikset lock and key, the person bumping the lock would also use a Kwikset key. They would put their key into your lock and use a small hammer or object to hit the key which causes the pins in the key cylinder to jump out of he way and allows the person to turn your key cylinder and unlock your door. Thus why it is called bumping. So the first part of the Bump Proof means that the lock is not able to be bumped. The second part ANSI grade 1 is a rating used by the American National Standards Institute to determine the amount of wear and tear a lock can handle. Grade one is the highest. So the second part of the question means that you have the highest grade of deadbolt. Typically a Bump proof lock is a keyless lock using a keypad for entrance rather than a key way thus eleminating the ability to be bumped. I am including a link to one I found online at GoKeyless.com http://gokeyless.com/product.php?id=131&main=1 I do not know if it is a grade one or not but it is only one example. You can buy other bump resistant keyway locks and deadbolts but unless there is no keyway at all it is really tough for it to be 100% bump proof.

Rotational 90 degree asists.