The center post B of the assembly has an original length of 124.7mm, whereas posts A and C have a length of 125 mm. If the caps on the top and bottom can be considered rigid, what is the magnitude of the sum of the forces exerted by bars A, B, and C on the top plate? The posts are made of aluminum and have a cross-sectional area of 400 mm2. Eal=70 GPa. Answer should be in kN.

Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

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]