Question 4 a) A rectangular open box, 7.6m by 3m in plan and 3.7m deep, weighs 350kN is launched in fresh water. 1. How

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Question 4 A A Rectangular Open Box 7 6m By 3m In Plan And 3 7m Deep Weighs 350kn Is Launched In Fresh Water 1 How 1 (243.11 KiB) Viewed 20 times

Question 4 a) A rectangular open box, 7.6m by 3m in plan and 3.7m deep, weighs 350kN is launched in fresh water. 1. How deep will it sink? (5 marks) If the water is 3.7m deep, what weight of stone placed in the box will cause it to rest on the bottom? (5 marks) b) Water is pumped through a pipeline to a treatment plant at a rate of 4.7m/s. The 1.5m diameter suction line is 1,100m long, and the 0.9m diameter discharge line is 550m long. The pump adds 50m head to the water, and the total head loss is 15.8m. If the water pressure at the pipeline entrance is 345N/m², what is the pressure at the exit, which is 4.5m higher than the entrance? (10 marks)