Engineering, 27.11.2019 03:31, rebeccathecatt
You are reevaluating the pump choice that was made last year by your boss. the expected cost savings have not occurred because the pump is too small. choice a, at $90,000, is to replace the pump with one that is the right size and sell the old one. choice b , at $100,000, is to buy a small pump to use in tan- dem with the existing pump. the two-pump solution has slightly higher maintenance costs, but it is more flexible and reliable. what criteria should you use? which choice would you recommend, and why?
Answers: 2
Engineering, 04.07.2019 08:10, doggo242
Which of the following is an easy way to remember the modified “x” tire rotation? a. nondrive wheels straight, cross the drive wheels b. drive wheels straight, cross the nondrive wheels c. drive wheels crossed, nondrive wheels straight d. drive wheels crossed, nondrive wheels crossed
Answers: 1
Engineering, 04.07.2019 18:10, tjeffers90028
Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.
Answers: 1
Engineering, 04.07.2019 18:10, lowkeyqueenk
Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk
Answers: 1
You are reevaluating the pump choice that was made last year by your boss. the expected cost savings...
Mathematics, 27.05.2021 05:00
Mathematics, 27.05.2021 05:00