Air flows in an 10-cm-diameter, 50-m-long pipe at a velocity of 2.75 m/s. The piping system involves multiple flow restrictions with a total minor loss coefficient of 3.5. The friction factor of pipe is obtained from the Moody chart to be 0.03. The total head loss of this piping system is

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?

Courses that are developed by subject matter experts, internal or extemal to the college or university. these programs are marketed by the school (clo2) marks a)-vocational schools b)-vendor training c)-colleges & universities d)-continuing education programs

Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false