![]() A steel pipeline carrying gas has an internal diameter of 120cm and an external diameter of 125cm. Solution: a) Weight of pontoon = Weight of water displaced W = 9810圆x10x2 = 1177200 N = 1177.2 KN b) Draught in sea water (D) = ? Weight of pontoon = Weight of sea water displaced 1177200 = 1177200 = D = 1.95m c) D max = 2.3m Load that can be supported in fresh water (P) = ? Total upthrust (F B) = Weight of water displaced = 9810圆x10x2.3 = 1353780N = 1353.78KN P = F B – W = 1353.78-1177.2= 176.58 KN 2. Calculate (a) weight of pontoon, (b) its draught in seawater of density 1025 kg/m 3 and (c) the load that can be supported by the pontoon in fresh water if the maximum draught permissible is 2.3m. ![]() A rectangular pontoon has a width of 6m, length of 10m and a draught of 2m in fresh water. The water level is indicated on a scale on the side of the quadrant.1. Water is added to the tank via a flexible tube and may be drained through a valve in the side of the tank. An indicator attached to the side of the tank shows when the balance arm is horizontal. Correct alignment is indicated on a circular spirit level mounted on the base of the tank. This assembly is mounted on top of an acrylic tank which may be levelled by adjusting screwed feet. ![]() The balance arm incorporates a hanger for the weights supplied and an adjustable counterbalance. ![]() This means that when the quadrant is immersed, the only force that gives rise to a moment about the knife edges is the hydrostatic force acting on the end face of the quadrant. The knife edges coincide with the centre of the arc of the quadrant. The Hydrostatic Pressure accessory has been designed to determine the static thrust exerted by a fluid on a submerged surface and enables comparison of the measured magnitude and position of this force with simple theory.Ī fabricated quadrant is mounted on a balance arm which pivots on knife edges. ![]()
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