There are two water tanks a and b separated by a vertical wall with a hole at 3. water is steadily áowing in at 1 into a rectangular tank a with a length of 5 ft and a width of 5 ft (into the paper). the áow rate at 1 is measured as q_ 1 = 5 ft3/s . at the time instant of interest, h1 = 15 ft, and water is also steadily áowing out into tank b at the rate of 4 ft3/s. at this instant, h2 is 12 ft. tank b has a length of 8 ft and the same width as tank a

An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet

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?

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.