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Maryhill Alines has a pelletizer that it is considering for replacement. Every three years it is overhauled at considerable cost. It is due for an overhaul this year. Evelyn, the company mining engineer, has calculated that the sum of the operating and capital costs for this year for the pelletizer are significantly more than the EAC for a new pelletizer over its service life. Should the existing pelletizer be replaced?
In a laboratory test on a clay sample it has been forgotten to measure the deformation immediately after the application of the load. The measurement after 1 minute was a deformation of 0.06 mm, and after 4 minutes a deformation of 0.08 mm. Estima..
determine the mass of methane gas stored in a 2 m3 tank at ?30degc 3 mpa. estimate the percent error in the mass
1. One pound mass of water in a piston-cylinder assembly, initially a saturated liquid at 1 atm, undergoes a constant- pressure, internally reversible expansion to x 5 90%. Determine the work and heat transfer, each in Btu. Sketch the process on p..
A body moves through standard air at 200 m/s. What is the stagnation pressure on the body? Assume (a) compressible flow and (b) incompressible flow.
design 2-shell pass and 8-tube pass heat exchanger for heating ethyl alcohol from 25degc to 70degc at a rate of 2.9
a patent application describes a device that at steady state receives a heat transfer at the rate 1 kw at a
Why are most hydraulic motors of the fixed-displacement type?
he vapor compression heat pump operates at steady state using refrigerant 22 whose flow rate is 6kgmin. the heat pump
What types of software engineering mistakes are common between the Honda and Toyota cases? What mistakes were specific to each case? Explain your answers
An angle glass/epoxy lamina is subjected to a shear stress τxy = 0.4 ksi in the global axes resulting in a shear strain γxy = 468.3 μin./in. in the global axes. What is the angle of the ply? Use the properties of unidirectional glass/epoxy lamina fr..
Discuss some of the problems that might be encountered when implementing OSHA's machine guarding standards in the workplace. Do you feel that the standards are adequate to control machine guarding hazards in general industry?
air is compressed in a variable-load piston-cylinder device equipped with a paddle wheel. initially air is at 500kpa
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