15539 Hydraulic Option 89

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Uploaded: 17.03.2013
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Description

Examination number 1
Task №1
In a closed water tank maintained at a pressure P0 = 0.28 MPa. Indications mercury manometer h, if the lower levels of mercury is at H = 845 mm, below the water level in the tank
Problem №2
A rectangular shield length a = 5.8 m and a width b = 5,9 m pivotally mounted at O. The water depth on the left of the shield H1 = 4.8 m, the right H2 = 3.8 m. The angle α = 61 shield, 60. Determine the force T necessary for lifting the shield
Problem №3
Determine the size and point of application of the resultant force of the hydrostatic pressure of water per 1 m width Roller shutter diameter d = 1,6 m with h1 = 1,6 m if h2 = 0,95 m
Problem №4
For transportation of cars up to 30 kN across the river raft constructed of logs with a diameter D = 0,33 m, length L = 10,8 m. Determine how much you need for the construction of log raft that can hold the load G = 43 kN, if the density of the tree ρd = 800 kg / m3.
Problem №5
To determine the water flow in the inclined pipe having a sudden expansion at d1 = 33 mm, d2 = 51,8 mm, the difference of water levels in piezometers h = 0,42 m.
Task №6
Determine the mode of fluid motion for the following streams:
1. In a water pipe: d = 0,325 m; v = 1,7 m / s; T = 20 0 C
2. In the channel of rectangular cross section: b = 3,1 m; h = 0,8 m; v = 1,7 m / s; T = 15 0 C
3. In the pipeline: d = 0,05 m; v = 0,9 m / s; T = 15 0C.
Verification work number 2
Task №1
Water from the tower pressure H = 15.8 m lying on asbestos pipeline diameter d = 100 mm, a distance L = 1000 m. To determine the height h at which the water is supplied at a flow rate Q = 17,8 l / s
Problem №2
Water is pumped into the tank nasosm a height H = 46 m. \u200b\u200bSuction piping with check valve has a length Lvs = 19.5 m, discharge Lng = 48 m. Choose from a cast iron pipe diameters and determine the pressure feed pump Q = 44,5 l / with
Problem №3
Reservoirs A and B are connected by a new horizontal cast iron pipes with variable cross-section dimensions L1 = 11,6 m, L2 = 7,8 m, D1 = 75 mm, D2 = 150 mm; pressure at t = 15 0C is H = 9.6 m. Determine the water flow in the pipeline and build piezometric and discharge line, if the gauge pressure P0 = 0.038 MPa, h = 2,8 m.
Problem №4
From reservoir A through hole diameter da = 15.16 mm water at a flow rate Q = 0,95 l / s flows into the tank B and from it through the hole DB = 20.16 mm into the atmosphere. Determine the pressure on and HB.
Problem №5
Determine the capacity of the steel pipe composed of three consecutive segments with lengths L1 = 950 m, L2 = 1250 m, L3 = 1450 m, early geodesic mark pipeline Zl = 10.8 m, and the end Zc = 51.6 m. Pressure, respectively, pH = 0.98 MPa, 0.48 MPa = Pk. Nominal diameter D1 = 700 mm, D2 = 600 mm, D3 = 500 mm.

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