Engineering

A concave Hexagon is that hexagon which has one of its internal angle greater than 180 degrees. It can have 8 diagonals. As compared to regular hexagon (Also convex hexagon) it has one less number of diagonals. This is because one line joining two of its vertices (that are at the end of sides forming >180 angle) fall outside the hexagon.

Generally for export only transformer, generator side is connected in delta and load side is connected in star. For export import transformers star star connection may be preferred by some since this avoids a grounding transformer on generator side and perhaps save on neutral insulation. I am not sure how correct this practice is but so many systems are running in this configuration. Perhaps it may be felt to be less harmful than operating delta system incorrectly. Yd or Dy connection is standard for all unit connected generators.

The main reasons for connecting generator side winding in delta are:

1) To facilitate grounding of generator system with higher impedance and the load system with lower impedance.

2)To break The zero sequence circuit for the system at the transformer. This ensures the load side zero sequence currents do not come to the generator system.

3) III rd and similar harmonics will circulate in delta and will not come to generator system.

The trafo vector group will be Dy if load voltage is lower and Yd if load side voltage is higher.

Dy1,5,7 or 11 selection depends on requirement for load synchronizing ,standardizing or ready trafo availability. All vector groups are functionally similar.

engineers worked in egyptain radio and television union (ERTU)

electromagnetic devices are devices that work on electricity but are magnetic

It depends on the type of engineering, but basic equipment in a factory setting, is steel toe-caped boots, hard wearing clothes and overalls, a hi-viz safety vest or jacket, waterproof industrial gloves, hard hat, goggles, ear plugs (ear defenders, ear muffs). Additional items if working in tight, hazardous areas (underground waste/sewerage pumping stations, etc) would be a gas detector, a torch(s), and a safety assessment of possible hazards and dangers having been previously made.

Yes, hot-rolled steel is magnetic. A few types of steel have limited magnetic properties, but hot rolling is a process by which steel is prepared in a shape for marketing. The hot rolling does not affect the ability of the steel to be attracted to a magnet.

Ultimate strength design assumes the entire cross section of a member is subjected to its yield stress and will generally save material, but be less conservative given the same factor of safety.

According to the U.S. Bureau of Labor Statistics the estimated mean annual wage for a Computer Hardware Engineers as of May 2008 is, $100,180.

Circulating blood is a non-newtonian fluid

In order to understand this problem, you need to understand the equation PV = nRT. P meaning pressure, V meaning volume, n meaning number of moles, R meaning the ideal gas constant, and T meaning temperature. Since the number of moles and the gas constant are not changing, the temperature will cause the pressure and volume of the gas to increase as it itself increases. Likewise, as the temperature decreases the pressure and volume of the gas will decrease.

Quantum engineer

Rolls Royce ghost

Lexus IS-F

I think there are more but I'm not sure

The current should be listed on the motor nameplate as FLC or FLA (full load current/full load amps). Starting current is listed as LRC (locked rotor current). However, to calculate current for any load, divide watts by voltage. 1 hp = 746 watts 85 hp = 63410 watts 63410 watts / 208volts = 304.85 amps 63410 watts / 480 volts = 132.10 amps

Since there is continuous withdrawal of steam and continuous return of condensate to the boiler, losses due to blowdown and leakages have to be made up to maintain a desired water level in the boiler steam drum. For this, continuous make-up water is added to the boiler water system. Impurities in the raw water input to the plant generally consist of calcium and magnesium salts which impart hardness to the water. Hardness in the make-up water to the boiler will form deposits on the tube water surfaces which will lead to overheating and failure of the tubes. Thus, the salts have to be removed from the water, and that is done by a water demineralising treatment plant (DM). A DM plant generally consists of cation, anion, and mixed bed exchangers. Any ions in the final water from this process consist essentially of hydrogen ions and hydroxide ions, which recombine to form pure water. Very pure DM water becomes highly corrosive once it absorbs oxygen from the atmosphere because of its very high affinity for oxygen. The capacity of the DM plant is dictated by the type and quantity of salts in the raw water input. However, some storage is essential as the DM plant may be down for maintenance. For this purpose, a storage tank is installed from which DM water is continuously withdrawn for boiler make-up. The storage tank for DM water is made from materials not affected by corrosive water, such as PVC. The piping and valves are generally of stainless steel. Sometimes, a steam blanketing arrangement or stainless steel doughnut float is provided on top of the water in the tank to avoid contact with air. DM water make-up is generally added at the steam space of the surface condenser (i.e., the vacuum side). This arrangement not only sprays the water but also DM water gets deaerated, with the dissolved gases being removed by an air ejector attached to the condenser.

There may not be any science involved in engineering as it is a process of detailing based on available/validated science. engineering design is purely mathematical calculations and drawings as per scale after desdigning.

The phases of a design process that statistics might be most applicable are is the production stage.

Static pressure is .434 X height Example 10 ft x .434 4.34 PSI to prove take 2.31 PSI x 4.34 To find FORCE to need to calculate the diameter of the piping and the height and then the weight of the water inside the pipe

The area over which a force acts, is proportional to the pressure. When the area is large then, the pressure acted on it is also large, so the force is greater.

Some jobs which are most commonly carried out by systems engineers are occupations such as the following: overseeing computer maintenance and upkeep, setting up an organizations intranets, along with designing and testing software.

like so?

http://beta.tulsaengineer.org/uploads/MouseTrap.bmp

Google "tap drill sizes" and you'll get 19400 results. The formula for that calculation is searchable in Machinery's Handbook, but there are simple charts you will get in your search that can give you the answer for any size you need to know.

sound can be whatever you want it to be. As quiet or as loud as you want it.

To be safe, don't turn the music or sound up too loud because it will/could shatter your ear drums. And also, you do not want it too quiet to where you can't even hear it.

0.0001 meter = 0.01 centimeter = 0.1 millimeter = 0.0000001 kilometer