Air is blown through a large wind tunnel by a 5m diameter circular fan. if the air velocity just downstream of the fan is 2.5m/s, what will be its velocity at a 1.5m square section further down the wind tunnel? a7 [2] a) 18.3m/s 17.4m/s b) 2.5m/s 250m/s 21.81m/s

Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.

An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0

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