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1. You would like to produce a gray iron casting that freezes with no primary austenite or graphite. If the carbon content in the iron is 3.5%, what percentage of silicon must you add?
2. We would like to produce a 2-in.-thick steel wear plate for a rock-crushing unit. To avoid frequent replacement of the wear plate, the hardness should exceed HRC 38 within 0.25 in. of the steel surface. However, the center of the plate should have a hardness of no more than HRC 32 to assure some toughness. We have only a water quench available to us. Design the plate, assuming that we only have the steels given in Figure 13-21 available to us.
Figure 13-21
how to solve set of ordinary differential equations (of initial value problem) in matlab using numerical integration method such as newmark B method or integration method.
superheated water vapor initially at 15 bar and 440degc is cooled at constant pressure to a saturated vapor state and
in a piston cylinder device 5kg of air at 200kpa and 227oc is compressed to 500kpa at 100oc. determine the entropy
Compute the x-and y-components of the force acting on the pinB connecting the two members of the machine subjected to the 200-N load.
Room temperature atmospheric air is accelerated by a nozzle steadily from a low velocity to a velocity of 220 m/s. If the nozzle diameter decreases by a factor of 2:
Assignment on kinematic chains - Type of chain whether it is locked,constrained or unconstrained?
Convince yourself that the sum of two TEM waves which have components in opposite directions can produce a TM wave. What are the additional conditions necessary for this to happen?
The gutter is designed for a sudden rainstorm of up to 5 inches per hour. For this condition, what is the maximum roof area that can be drained successfully?
Why did you normalize the above graphs? What is the significance of the resulting slopes? Define "rotational stiffness" in terms of a member's geometric and material properties
the strength of titanium alloy is found to be 450 mpa when the grain size is 17 x 10-6 m and 565 mpa when the grain
a 35 api distillate at 60 f is to be pumped a distance of 2000 ft through a 4 in. sch 40 horizontal pipeline at a flow
Calculate the allowable uncertainty in the relative displacement measurement in order to ensure an uncertainty of no more than 5 percent in the acceleration measurement.
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