Question 2 (b) Using the same problem above. Compute the location in m of the hydrostatic force from the top of the gate.
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- A circular door having a diam. of 3m closes a horizontal duct from a small diam. as shown. The center of the door is 4.5m below the liquid surface. Assuming the specific gravity of liquid is 0.95. Compute the following: a) hydrostatic force acting on the door, [ Select ] b) the location of the center of pressure from the centroid of the door, [ Select ] c) the force at the bottom of the gate to maintain equilibrium if it is hinged at the top. [ Select ] 4.5 m 3mA circular door having a diam. of 3m closes a horizontal duct from a small diam, as shown. The center of the door is A circular door having a diam. of 3m closes a horizontal duct from a small diam. as shown. The center of the door is 4.5m below the liquid surface. Assuming the specific gravity of liquid is 0.95. Compute the following: 4.5m below the liquid surface. Assuming the specific gravity of liquid is 0.95. Compute the following: a) hydrostatic force acting on the door. (Select] [ Select] 311.406 kN b) the location of the center of pressure 296.441 kN 265.236 kN a) hydrostatic force acting on the door, [ Select ] [ Select ] b) the location of the center of pressure from the centroid of the door, [Select ] [ Select ] 280.838 kN c) the force at the bottom of the gate to 327.645 kN ged at the top. c) the force at the bottom of the gate to maintain equilibrium if it is hin 0.125 m 0.225 m [ Select ] ( Select ] 0.175 m 0.250 m 4.5 m 4.5 m1. A semi-circular gate of diameter "d" and radius "r" is submerged in a liquid and has its diameter on the liquid surface. a. Compute for the value of eccentricity if the top of the gate is 2m from the surface and radius is 2 m. b. Compute the location of the center of pressure if the top of the gate is 2m from the surface and radius is 2 m. c. Compute for the hydrostatic force on one side 4r /3n he CG. CP.
- Problem 3. In a closed tank, a square gate 3m wide rests on a smooth floor at Y. The gate is inclined at 45° from the vertical and it is hinged at the wall of the tank at X located 1.80m below the liquid surface. The air above the oil surface is under a pressure of 7 kPa. If the gate weighs 5 kN, determine the following: a. total hydrostatic force "F" acting on the gate due to oil (SG=0.80) and b. the vertical force "Fv" at Y required to open it.What is pipe roughness? A pump is located 5 m above the surface = 8170 M/m¹) in a closed tank. The pressure in the space above liquid surface is 35 Kpa. The suction line to the pump is 15 m of 15 cm diameter pipe (/= 0.025). The discharge from the pump is 60 m of 20 cm diameter pipe (/= 0.03). The pipe discharges in a submerged fashion to an open tank whose free liquid surface is 3 m lower than the liquid surface in the pressure tank. If pump puts 1.5 kW Into the liquid, determine the flow rate and the pressure in the pipe on the suction side of the pump. Assume turbulent flow.25 pts A circular door having a diam. of 3m closes a horizontal duct from a small diam. as shown. The center of the door is 4.5m below the liquid surface. Assuming the specific gravity of liquid is 0.9o. Compute the following: a) hydrostatic force acting on the door, [ Select ] b) the location of the center of pressure from the centroid of the door, [ Select ] c) the force at the bottom of the gate to maintain equilibrium if it is hinged at the top. [ Select ] 4.5 m 3m
- The air above the liquid (S.G.=0.85) is under a pressure of 40kPa gage. The rectangular gate is 2.0m wide. a) Determine the hydrostatic force acting on the gate. b) Determine the location of the force measured from the hinge. c) Calculate the minimum value of P to hold the gate in place.Quizes Syllabus Compute the hydrostatic force [Select] v acting for a gate 2.5 m wide and 2.0m long has Conferences a water on one side and is inclined with the horizontal as shown. Water is 1.60 m above the top of the gate. Compute the distance ( Select] v of the center of pressure from (B) and the force [ Select ] v perpendicular to the gate needed at the bottom (A) to open the gate. hinge gate 2m 45 to search IN %23The diameter of a pipe carrying oil (s=0.92) changes gradually from 400 mm at A to 600 mm at B. Point A is 3.6 m lower than B. If the pressure at A is 70 KPa and that at B is 49 KPa when 140 L/s is flowing, determine the direction of flow; (b) the frictional loss between the two points.
- Q2: A tank of water empties by gravity through a siphon. The difference in levels is 3 m and the highest point of the siphon is 2m above the top surface level and the length of pipe from inlet to the highest point is 3.5 m.The pipe has abore of 40 mm and length 12m. The friction coefficient for the pipe is 0.009 The inlet loss coefficient K is 0.9. Determine total of Resistance. (0) Fig.(2)1. Compute the depth of the center of pressure from the bottom of a vertical circular gate having a diameter "d" when it is submerged in a liquid with its upper edge on the liquid surface. O13. A U-tube differential manometer connects two pressure pipes A and B. Pipe A contains carbo tetrachloride having a specific gravity 1.594 under a pressure of 11.772 N/em and pipe B contains ofl of sp. gr. 0.8 under a pressure of 11.772 N/em. The pipe A lies 2.5 m above pipe B. Find the difference of pressure measured by mercury as fluid filling U-tube. 14. A differential manometer is connected at the two points A and B as shown in Fig. 2.25. At B air pressu is 7.848 N/cm (abs.), find the absolute pressure at A. [Ans. 31.36 cm of mercuryl (Ans, 6.91 Nicm) AIR WATER OIL Sp. gr.0.8 OIL Sp. gr. 0.8 50'cm 30 cm 100 am 60 cm 10 cm MERCURY Sp. gr.13.6 WATER Fig. 2.25 Fig. 2.26