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Design a process to produce a 0.5 cm-diameter steel shaft having excellent toughness, yet excellent wear and fatigue resistance. The surface hardness should be at least HRC 60, and the hardness 0.01 cm beneath the surface should be approximately HRC 50. Describe the process, including details of the heat-treat atmosphere, the composition of the steel, temperatures, and times. Present your solution as a clearly ordered sequence of steps.
a 2in-diameter steel propeller shaft of an experimental high-speed boat transmits 2500hp at 2000rpm. bending and axial
a turbine is supplied with 0.6m3s of water from a 0.3m diameter pipe the discharge pipe has a diameter of 0.4m. the
What is the nature of the process fluid and what are the objectives of the two sample points and in what way do the samples reaching the instruments differ?
steam having a mass of 3kg and initially at 2.5mpa and 350degc has 2460kj of heat removed at constant temperature until
a light globe dissipates 200w as heat. it is exposed to a light breeze of air at 20c which results in a convective heat
steam enters an adiabatic turbine at 3 mpa and 350 celsius and leaves the turbine at 75 kpa with a quality of 89. if
air enters a compressor operating at steady state at 1.05 bar 300 k with a volumetric flow rate of 12 m3min and exits
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refrigerant 134a at 10 bars 38oc flows at 10.0 kgs through a heat exchanger leaving at 9.0 bars and 80oc. it exchanges
A body having a mass of 46 kg rests on a horizontal planse for which the coefficiant of friction f = 0.4. A force P acts ofn the body at an angle of 20 degrees with the horizontal. Find its magnitude for impending motion.
Knowing that the bracket AB has a uniform thickness of 5/8 in., determine the principal planes and principal stresses at point H.
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