A four-cylinder automobile engine is to be supported on three shock mounts, as indicated. The engine-block assembly weighs 225 kg. If the unbalanced force generated by the engine is given by 900 sin 100tN, design the three shock-mounts (each of stiffness k and viscous-damping constant C. Such that the amplitude of vibration is less than 0.25 cm

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]