(20Points) Size the columns for a 10 story (12 ft stories) 100ft x 200ft office complex that has 20ft bays (5 in one direction and 10 in the other). Do the design with both precast and cast-in-place concrete columns. 2.(10 Points) Just considering the concrete columnsand $150/cubic yards for the cost of the reinforced concrete, what is the total cost difference for this structure

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.

Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery

Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]