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(a) The hardness of a steel is often used interchangeably with its tensile strength. Why is this practice used and what is the relationship between hardness and tensile strength?
(b) In a hardenable steel, what does ‘limiting ruling section' mean?
(c) In Case Study 3 in this chapter, the microstructure of the pin, even near the surface, was mainly bainite with some ferrite. Use the continuous cooling transformation (CCT) diagram for the steel to explain the transformation kinetics it had undergone, assuming an oil quench.
(d) In (c) above, using a water quench would very likely eliminate the soft and undesirable ferrite phase, and further, water quenching would be much cheaper than an oil quench. What are the disadvantages of a water quench?
If ammonium conversion in bioreactor 1 is 70%, determine the ammonium conversion in bioreactor 2. determine whether the cell concentration in bioreactor I would be less than, equal to, or greater than the cell concentration in bioreactor 2
A U-tube open at both ends is partially filled with water (a). Oil having a density of 750 kg/m3 is then poured into the right arm and forms a column L = 5.00 cm high (b) (a) Determine the difference h in the heights of the two liquid surfaces.
Provide concise answers to the following questions about the organic chemistry of thermochemical processing: 1. List and indicate the structural formula for functional groups important to biomass chemistry.
a) The reactive power output of the generator b) The generator internal voltage (delta). dc) An equation for the electrical power delivered by the generator versus power angle
The quarter circle gate BC in Fig. is hinged at C. Find the horizontal force P required to hold the gate stationary. The width b into the paper is 3 m.
What are optical fibers used for? How many of those applications are being used in Oman? What does the Omani public know about optical fiber and its applications?
A gas refrigeration system using air as the working fluid has a pressure ratio of 5. Air enters the compressor at 0°C. The high-pressure air is cooled to 35°C by rejecting heat to the surroundings. The refrigerant leaves the turbine at -80°C and t..
Summary Political and Legal issues of Robotic Surgery? Summary Identify and explore What the Psychological considerations and sociological effects when having or doing Robotic Surgery?
a continuous miner has the following specifications ltbrgtcutter drum width 3.2m ltbrgtdrum diameter across the picks
Calculate the reciprocal lattice of the body-centred cubic and Show that the reciprocal of the face-centred cubic (fcc) structure is itself a bcc structure.
A 50.0-kg woman balances on one heel of a pair of high heeled shoes. If the heel is circular and has a radius of 0.500 cm, what pressure does she exert on the floor?
Porblem-1. Barker Spectrum-Derive analytically the spectrum of the Barker code (11 chips)
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