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A billet of stainless steel, AISI 316, with a diameter of 150 mm and a length of 500 mm emerges from a heat treatment process at 200°C and is placed in an unstirred oil bath maintained at 20°C.
(a) Determine whether it is advisable to position the billet in the bath with its centerline horizontal or vertical in order to decrease the cooling time.
(b) Estimate the time for the billet to cool to 30°C for the preferred arrangement.
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the effort required to maintain a scanning electron microscope is known to increase by a fixed percentage each year. a
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Within the last month, the raw material price and consumable price combined has increased by 5.5%. If the throughput was 5 parts/hour estimates the future throughput that has to take place in order to maintain a constant production cost. Consider the..
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A refrigeration system operating with Refrigerant 134a consists of a compressor, a condenser, a throttle valve and an evaporator. The refrigerant enters the compressor dry saturated at a temperature of -150C and is compressed to pressure of 13.174..
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An airplane is flying with 212 KIAS at 10000 feet pressure altitude. The Pitot tube position error for the aircraft is 3 knots. The thermometer reads 0 deg F. Calculate the airplane's KCAS, KEAS, and KTAS.
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