Engineering, 14.09.2019 00:30 rk193140
Aheat treating process (process 1) can be added to a processing line for $30,000. the annual operating costs are $12,000 and its life is expected to be 8 years with a $10,000 salvage value at that time. an alternative process (process 2) can be installed for $21,000. its annual operating costs are $15,000 and its life is also expected to be 8 years with a $7,000 salvage value. in both cases, the annual increase in revenue due to the addition of the heat treating process is $20,000. the company's tax rate is 52% and the method of depreciation is syd. compute the rate of return of each heat treating process after depreciation and taxes. on the basis of this rate of return analysis, which alternative should be selected?
Answers: 3
Engineering, 03.07.2019 14:10
Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned
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Engineering, 04.07.2019 18:10
Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?
Answers: 1
Engineering, 04.07.2019 18:20
Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false
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Engineering, 04.07.2019 19:20
A5 kg block of fe is dropped into a very large vat of water. the fe and water initial temperatures are 95 and 25 c, respectively. the fe final temperature is 25 c and the water can be treated as a thermal reservoir,. treated as a thermal reservoir take the water to be the system and determine the entropy generation. report vour answer in kj/k.
Answers: 1
Aheat treating process (process 1) can be added to a processing line for $30,000. the annual operati...
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