Engineering, 26.07.2019 16:10 BeautyxQueen
You are tasked to justify the purchase of a robot that would cost $100,000 as a fixed price, plus an additional 15% annual maintenance. this robot will replace 4 workers that work an 8-hour shift every day in a 5-day week if the total salary of each worker is $40,000, and given the following assumptions, calculate how many weeks it will take to fulfill the roi (return on investment): a) robot will work 3 shifts every day. b) robot's doesn't have a downtime but its maintenance cost is $15,000 per year which is charged annually. c) each worker will have 15 days of vacation and only 4 days of national holidays.
Answers: 3
Engineering, 04.07.2019 18:10
The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false
Answers: 1
Engineering, 04.07.2019 18:10
Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.
Answers: 3
Engineering, 04.07.2019 19:20
Consider airflow over a flat plate of length l = 1.5 m under conditions for which transition occurs at le = 0.9 m based on the critical reynolds number, re,e = 5 x 10. evaluating the thermophysical properties of air at 400 k, determine the air velocity. (hint: use the tables to find the properties of air)
Answers: 3
Engineering, 06.07.2019 02:30
Precipitation hardening can be achieved in many light alloys by a three-step heat treatment. what is carried out and what is the purpose at each step? why is such a treatment necessary based on the nucleation and growth theory of phase transformation. compare this treatment with tempering martensite for carbon steels (similarities and differences).
Answers: 1
You are tasked to justify the purchase of a robot that would cost $100,000 as a fixed price, plus an...
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