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A work center consisting of 3 machines operates 40 hours a week. In a 4-week period, it actually worked 360 hours and produced 468 standard hours of work. Calculate the utilization and efficiency of the work center. What is the demonstrated weekly capacity of the work center?
a shell-and-tube heat exchanger must be designed to heat 2.5 kgs of water from 15 to 85 oc. the heating is to be
Draw the T-s diagram (hint: it would help to begin with a schematic of the cycle) and.
A race car starting from rest travels along a straight road and for 10 s has the acceleration shown. Construct the v - t graph that describes the motion and find the distance traveled in 10s.
A flow of 90% CH4, 10% H2 is passed into a furnace at 900 K. Determine whether carbon forms if the total pressure is 1.2 atm, carefully justifying your answer. Calculate the composition ( expressed as a molar percentage) of the gaseous mixture at thi..
motion of the threaded collars and is controlled by the rotation of their respective lead screws. if has a velocity to
Show that the proposed design meets the power and process
If the force exerted on the casting due to the sandblasting operation varies as shown in Fig. 4.44(b), find the response of the casting
Calculate the energy cost savings for this period at a rate of $0.12/kWh, if the pump is switched off 8 hr a day.
a uniform solid sphere of radius r 0.480 m and mass m 17.0 kg turns counterclockwise about a vertical axis through
A Carnot heat engine operates between 40C and 320 C. What is the thermal efficiency? if the work output is 200 kJ/kg, what is the quality of state A (in 320C)?
Find the distance between the centers of rotation, r1, given the radius of the crank r2 (distance from the center of the driving plate to the center of the pin) and assuming that the pin enters and leaves the slot smoothly.
the system on site is a pressure sand filter with a service curve. the filter is backwashed using the feed pump at a
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