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Working Chamber of EBW
The chamber is usually rectangular in shape and has heavy windows to permit viewing the work. Both high voltage machines and low voltage machines are available with work chamber that can be evacuated to high vacuum (or partial vacuum (10-4).The basic requirements of vacuum is the electrons need to flow in a beam from the emitter to the target unimpeded by the presence of any gas molecules that may cause scattering and slow down of the beam. The source of electrons is a tungsten filament heated to around 2200 °C. At this temperature, the filament will oxidise very quickly because of the presence of oxygen in air. The pumping equipment is usually completely automatic once the set up has been completed.
In an I.C. engine operating on the Dual combustion cycle, the temperature of the working fluid (air) at the beginning of compression is 27ºC. The ratio of the maximum and minimum p
(a) A circular cylinder of mass M and radius R connected by a spring of stiffness ‘K'. It is free to roll on horizontal surface without slipping. Calculate the natural frequency.
Present and talk about the bearing, a typical mechanical element for friction decreasing. Complete Table Q2 about benefits,disadvantages and examples of applications of the follow
what is the factors affecting process planning?
Solve the following equation by Gauss elimination Method : 2x + y + z = 10, 3x + 2y + 3z = 18; x +4y +9z = 16 Solve by Gauss-Seidal iteration method: 20x + y - 2z = 17; 3x
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can you give me a complete design of hydraulic fixture for turning and facing machine ? with all dimension an graph and analysis after apply the fixture
Newton's law of motion. Sol.: The entire system of Dynamics is based on the three laws of motion that are basis assumptions, and were initially formulated by Newton. Fir
a hot brass plate is having its upper surface cooled by impinging jet of air at temperature of 15 degree celcius
System of force
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