Engineering, 22.08.2020 20:01 datboyjulio21
You are considering upgrading some manufacturing facilities by purchasing one of three different machines, each with the same production capacity. Machine A costs $30,000, has a life of 40 years, annual maintenance costs of $1500, and a salvage value of $5000. Machine B costs $20,000, has a life of 20 years, annual maintenance of $2000, and salvage value of $3000. Machine C costs $10,000, has a life of 10 years, annual maintenance of $4000, and no salvage value. Determine the most economical choice based on minimizing the present value of total costs. Use an annual discount rate of 10%. Assume that initial costs, annual maintenance, and discount rates are constant throughout the analysis period.
Answers: 2
Engineering, 03.07.2019 14:10
When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point
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Engineering, 03.07.2019 14:10
If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.
Answers: 3
Engineering, 04.07.2019 18:10
Water at 55c flows across a flat plate whose surface temperature is held constant at 95c. if the temperature gradient at the plate's surface for a given value of x is 18 c/mm, find a) local heat transfer coefficient. b) heat flux
Answers: 3
Engineering, 04.07.2019 18:10
Condition monitoring is a major component of. (clo4) a)- predictive maintenance. b)-preventive maintenance c)-proactive maintenance d)-reactive maintenance.
Answers: 1
You are considering upgrading some manufacturing facilities by purchasing one of three different mac...
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