Which of the following is NOT true about an Extruded Boss? A. The boss feature can intersect other solid geometry.
B. 2D sketch profiles can only be used for a single extruded boss or extruded cut feature.
C. The path of the extrusion is often perpendicular to the plane of the sketch profile
D. You can add as many extruded bosses as needed to complete the 3D geometry

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]