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A solid object of AISI 302 steel at a temperature of 850?C is quenched in mineral oil at a temperature of 25?C. The oil is contained in a well-insulated cylindrical tank that has a diameter of 1 m and a height of 1 m. The mass of the solid steel object is 8 kg. The specific heat and density of the oil are 1,950 kJ/kg-K and 890 kg/m3, respectively.
Describe the machinability evaluation criteria, is it a quantitative or qualitative evaluation and describe the High Speed Machining of Steel/Iron or Aluminium
an open gas turbine is equipped with a regenerator. the compressor is 87nbspefficient with air entering the compressor
Describe the principle and operation of an hearth furnace. Possible references: Making and Shaping of Steels by the American Society of Metals and Google resources.
(a) Find the speed of the bucket (b) How fast must the bucket move at the top of the circle so that the rope does not go slack?
Whit is the critical crack length in iron according to the Griffith-Orowan equation if surface energy=10^3J/m^2?
A compressor operating adiabatically is to compress 2.83 m^3/min of air at 29.4C and 102.7 kN/m^2 to 311.6kN/m^2. Calculate the power required if the efficiency of the compressor is 75%. Also, calculate the outlet temperature.
.How does data screening differ from data cleaning?
Aeroplane Dynamics, Determine the steady thrust that would enable a 200-tonne airliner to reach its take-off speed (75 m sâ?'1), from rest, in 30 s
Air at the rate of 18 kg/s is drawn into the compressor of a jet engine at 55 kPa and -23oC and is compressed reversibly and adiabatically to 276 kPa. Determine the required power input to the compressor expressed in horsepower.
Determine the minimum distance from a 50 ft height building from which the ball can be thrown and not hit the side of the building , but it may land on the roof depending upon how long the building is.
the 50-kg homogeneous smooth sphere rest on the 30 degree incline A and bears against the smooth vertical wall B. calculate the contact forces at A and B.
A 5v belt drive system operates an input speed of 1250 RPM at the small sheave. The driving sheave has a pitch diameter of 6.000 in, and the driven sheave has a pitch diameter of 19.000 in. If an optimum center distance of 47 in is specified.
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