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Engineering

Engineering is an art and profession devoted to designing, constructing, and operating the structures, machines, and other devices of industry and everyday life.

5,839 Questions

What is the rank of NED university in world?

Its World RAnk is 4316 in 2011. by SIze its position is 6,447, by VISIBILITY its 10,080, by RICH FILES its 4964 and by SCHOLARS its 2192....

u can confirm it at http://www.webometrics.info/top100_continent.asp?cont=S_Asia&zoom_highlight=ned+

Why does a screwdriver allow you to turn a screw you couldn't turn by hand?

A screwdriver allows you to exert more torque on a screw. Torque is defined as the product of the force exerted and the distance from the center of rotation. Torque is essentially a rotational force. It is simple to increase torque, simply increase the distance from the center that the force is being applied, and there is greater torque without increasing your effort. The handle is made to be wide, so that a greater torque can be exerted. It is also much easier to grip a screwdriver than it is to grip a screw. That also plays a factor.

If a gas occupies 3.67L at a pressure of 102.5 kPa what will its volume be at 100.9 Kpa at constant temperature?

P V = k T, so at constant temperature, PV is constant Initial PV = (102.5 x 3.67) = 376.175 ====> At constant temp, V = (376.175 / P) Final P = 100.9. Final V = (376.175 / 100.9) = 3.7282 L (rounded)

What are electrical currents measured in?

Electric current is measured in amperes.

1 ampere = 1 coulomb/second

What letter symbolizes inductance?

Though the unit of inductance is the Henry, it is often symbolized by the letter "L".

Is ODU engineering better than VCU engineering or science?

The ODU has much better engineering than VCU. VCU is primarily based on the social arts and business. However, ODU has a program through NASA that causes engineering student to get internships. Plus, it is well known through out NASA employees that ODU has better engineering school than VCU. Thus, if you are like graduate student or undergrad. Freshman year, I strongly suggest to attend at ODU than VCU.

What is stronger a triangle or a circle?

Circles are a stronger geometrical shape than a triangle. Circles distribute weight equally which makes it more stable. That is why pot holes are circles.

What the different between a line and a line segment?

Line segments have two ending points, while lines by proof and definition go on and on forever.

What is the difference between clustering and classification?

I've been looking for this aswer about a few months, and nothing! Researching on it, I believe that both are same. But, with only one markable difference: clustering is a type of unsupervised learning, and classification is a type of supervised learning. I believe that it is the only difference, and, of course, this dictates the way that the algorithm starts. But the results are essentially similar: grouped data.
Good luck in your question. I hope I've helped!

What is the difference between midtread and midrise?

click this link and look at the graphic http://es.wikipedia.org/wiki/Cuantificaci%C3%B3n_(procesado_de_audio)

What is a feature control frame?

A feature control frame describes a geometric tolerance on an engineering drawing. Geometric dimensioning and tolerancing is defined by the ASME Y14.5-2009 standard. A feature control frame is basically a rectangle divided into several segments, in the following order:

1 - A geometric characteristic symbol (specifying what the tolerance type is, such as parallelism, position, surface profile, runout, etc.)

2 - The tolerance

3 - Up to three frames (if applicable) of the datums to which the tolerance is related to. Some tolerances (such as flatness) do not relate back to any datums.

For more information:

http://catalog.asme.org/Codes/PDF/Y145_2009_Dimensioning.cfm

http://en.wikipedia.org/wiki/Geometric_dimensioning_and_tolerancing

What is a FBB reactor?

You may mean FBR - this stands for Fast Breeder Reactor

What is the formula for weight of water in a pipe?

If the amount of water leaving the tube each second is equivalent to the volume of the tube, then the net velocity will equal the length of the tube per second. Therefore the net velocity for any length or flow rate will equal: v=l2πr2/(dV/dt) Where v is the the net velocity, r is the radius, l is the tube length, V is the volume and t is time. i.e. dV/dt is the flow rate

What is the chemical composition of reinforcing steel bar?

Steel has an expansion coefficient nearly equal to that of modern concrete. If this weren't so, it would cause problems through additional longitudinal and perpendicular stresses at temperatures different than the temperature of the setting.[2] Although rebar has ribs that bind it mechanically to the concrete, it can still be pulled out of the concrete under high stresses, an occurrence that often precedes a larger-scale collapse of the structure. To prevent such a failure, rebar is either deeply embedded into adjacent structural members (40-60 times the diameter), or bent and hooked at the ends to lock it around the concrete and other rebar. This first approach increases the friction locking the bar into place, while the second makes use of the high compressive strength of concrete.

Common rebar is made of unfinished tempered steel, making it susceptible to rusting. Normally the concrete cover is able to provide a pH value higher than 12 avoiding the corrosion reaction. Too little concrete cover can compromise this guard through carbonation from the surface. Too much concrete cover can cause bigger crack widths which also compromises the local guard. As rust takes up greater volume than the steel from which it was formed, it causes severe internal pressure on the surrounding concrete, leading to cracking, spalling, and ultimately, structural failure. This is a particular problem where the concrete is exposed to salt water, as in bridges built in areas where salt is applied to roadways in winter, or in marine applications. Epoxy-coated, galvanized or stainless steel rebars may be employed in these situations at greater initial expense, but significantly lower expense over the service life of the project. Especially epoxy-coated have to be installed with great care, because even small cracks and failures in the coating can lead to intensified local chemical reactions not visible at the surface.

Fiber-reinforced polymer rebar is now also being used in high-corrosion environments. It is available in many forms, from spirals for reinforcing columns, to the common rod, to meshes and many other forms. Most commercially available rebars are made from unidirectional glassfibre reinforced thermoset resins.

visit the web to more about Reinforcement bar

http://en.wikipedia.org/wiki/Rebar

How much money does a sports engineer earn yearly?

The average sports engineer earns about 112,500 dollars a year. Thats awesome

How do you make bus port connectors in Logic Works?

Press Ctrl+B (or alternative go to "Schematic" --> " New Breakout")

Enter the Bus name followed by the number of pins you want and press OK.

example for name is

D0..2 -> creates Bus D with signals D0, D1 , D2

What is a microphone Jack?

I think the answer you are looking for is MICROPHONE JACK PLUG, meaning the plug/connection that fits into an amplifier or any output socket from the microphone itself.

Hope this helps

What is the impact of minus 30 deg centigrade temperature on Indian rain forest brown marble?

As marble is porous, any moisture in the air or liquid water can penetrate it, therefore a drop in temperature below 4 degrees Celsius will result in any water within the marble expanding, and the marble will be cracked and damaged.