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Briefly describe the simplest heat treatment procedure that would be used in converting a 0.76 wt% C steel from one microstructure to the other, as follows:
(a) Martensite to spheroidite
(b) Spheroidite to martensite
(c) Bainite to pearlite
(d) Pearlite to bainite
(e) Spheroidite to pearlite
(f) Pearlite to spheroidite
(g) Tempered martensite to martensite
(h) Bainite to spheroidite
a truck travels on rails round a curve of 100m radius at a speed of 90kmh the truck has a total mass o 4ton and its
a voltmeter with a range of 0 to 100v reads 2v when the leads are shorted together. the manufacture claims an accuracy
Determine the resultant internal loadings acting on the cross section at B of the pipe - What are the shear-stress values where the web and the flange of the section meet?
As shown in the picture, air flows through a pipe. Heat is supplied to the airflow. The air at the inlet is 200kPa and 20 C with flow velocity of 5m/s. The exiting air is 180 kPa and 40 °C. The diameter of the pipe is 0.28 m. Determine (a) the volume..
A gas mixture at 675.0°C and 113 kPa absolute enters a heat exchanger at a rate of 69.0 m3/hr. The gas leaves the heat exchanger at 245.0°C. The change in enthalpy of the gas during the cooling process is -6.80 kJ/mol.
Consider the air chilling process of Problem 7.110a. Determine the outlet air temperature To and mass rate at which the PCM is melted for s = 0.30. Assume the total mass of PCM and the mass flow rate of air are unchanged. The length of the containmen..
a 580 n uniform rectangular sign 4.00 m wide and 3.00 m high is suspended from a horizontal 6.00-m-long uniform 90-n
Calculate the delta velocity required to change the inclination of a circular orbit at 32,000 km altitude from a 28.5 degree inclination to an inclination of 45 degrees. Compute the propellant used if the satellite weighs 1200 lbs after the manoeuvre..
a heat pump uses a 100000 gallon swimming pool as a heat source in the winter. when the heat pump is running at full
the piston has no mass and no friction. there is 2 kg of water and the initial temp is 99.61 c and initial volume is
Plot the design graph of load versus concrete properties and slip versus concrete properties. Please explain the results and Plot the design graph of load versus temperatures and slip versus temperatures.
A single stream exits the mixing chamber at 66°F, 1 atm, and 60% relative humidity, with a volumetric flow rate of 1500 ft3/min. Determine for stream 2 the relative humidity.
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