Determine the atmospheric stability category of the following observations: a. clear summer afternoon at 1pm with a wind speed of 5.6 m/s. b. clear summer night at 1: 30am with a wind speed of 2.1 m/s. c. overcast winter afternoon at 2: 30pm with a wind speed of 6.6 m/s. d. summer afternoon at 1pm with broken low clouds and a wind speed of 5.2 m/s.

Ahouse has the following electrical appliance usage (1) single 40w lamp used for 4 hours per day (2) single 60w fan used for 12 hours per day (3) single 200w refrigerator that runs 24 hours per day with compressor run 12 hours and off 12 hours find the solar power inverter size in watt with correction factor of 1.25.

Which of the following components of a pid controlled accumulates the error over time and responds to system error after the error has been accumulated? a)- proportional b)- derivative c)- integral d)- on/off.

Aseries piping system conveys methyl alcohol. the system consists of 70 m of 1- nominal pipe follow by 50 m of 2-nominal pipe, both schedule 40 commercial steel. the 1-nominal pipe contains 3 90° elbows (regular) anda fully open gate valve, all threaded. the pressure drop through the system is 150 kpa. determine the volume flow rate through the system that is horizontally laid.