Drag each label to the correct location on the table. Identify the context as pneumatic system or hydraulics system uses an easily compressible gas uses relatively incompressible liquid use pressures of about 1,000 to 5,000 pounds per square inch use pressures of about 80 to 100 pounds per square inch there is a very low chance of fire there is high chance of fire

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?