Mechanical Engineering

The second moment of a force is called as moment of inertia.

acrylic and this link

Acac

Often interchangable in functions. Scientists are generally those who specialise in a particular disipline, often at the analythical or resarch stages of a project. The original engineering qualifications were issued to marine steam-engine operators as there were too many ships being lost due to boiler explosions. Professional bodies set standards for entry, academic bodies set standards of engineering qualification levels - Certificate, Diploma, Degree etc

MANIK

A Weldolet is a butt-weld branch connection. It is designed to provide integral reinforcement and minimize stress. They are made to match or exceed the schedule of the pipe.

Rigid polystyrene is a hard plastic Rigid polystyrene is a hard plastic

aircraft engines only move one way... no reverse

if you do itx (information technlogy extra) [computer studies] you got programing then you do sose and dcn cabnitmaker but the opinion is yours

You you you

30,000,000 psi

in a steam turbine, it is the speed at which the turbine should not go above. some time they call it overspeed trip. because the turbine rotor and berings are not design for such high speed and is not capable to handle this huge cenerfugal forces. usually there is two type of trip system: Electronic and Mechanical. some Steam Turbins have both protaction system.

it is arc angle

The famous Big Allis ( an Allis-Chalmers generator made originally in l959) and possibly still in use though re-armatured a number of times, was rated-after preliminary tests at the Argonne National Labs-they intended to use it for atojm-smashing , not regular power generation, at get this, l5 BEV. BEV? Billion Electron Volts, don"t spend it all in one place, it was claimed the exciters or starting motors alone drew l5 MEV (Million electron-volts) Popular Mechanics sang the praises of this famous generator that could (Jack the energies up to l5 BEV!) There you have it. There are probably higher powered units for purely experimental work bit iI"ll stand by Big Allis.

what is the formula for calculating volume of preesure vessels with dishe ends

Carbon is primary hardening element in steel. Hardness and tensile strength increases as carbon content increases upto 0.85%. Ductility and weldability decreases as carbon content increases.

If the solution of carbon and liquid iron is solidified slowly the carbon tends to separate out in the form of graphite flakes (Grey cast iron). It is easily machinable. If the same iron is cast and colled quickly, it is hard and has a higher tensile strength, is difficult to machine (white cast iron).

An example of an "interference fit" is when you have a pin that needs to go into a slightly smaller hole. The difference may be only 2/1000 inch (machinists measure parts in thousandths of an inch). In this case, the pin won't just slide into the hole, but needs to be forced, usually with a devise called a "press." . The usual purpose of an interference fit is to join two mating parts together in a way that they won't come apart without having to use other, more normal, fastening methods. For an elementary example of an interference fit and purpose, if you drive a nail half-way into a wall so you can hang something onto the part of the nail that sticks out of the wall, there is an "interference fit" between the nail and the new hole in the wall that the nail made.

pinning is the phenomena in which a domain wall is blocked or the magnetization is blocked/trapped due to surface defects.

there are a lot of chemicals

With a screw driver...

High tensile steel put simply is used where structures require high tensile strength. Tensile stress is where the forces on a material are "pulling" from each end away from the centre.

Steel can be alloyed with certain materials such as aluminum to create a material that is stronger under tensile loading. An example of where high tensile steel is required is the cables of the ANZAC bridge that support its deck.

Hope this helps..

Acceleration measures the change in speed

10 to 20 %

It is the pressure between not flat element. for example a rail an a wheel

the size of the disk storage device