Situation: The diving bell has a shape of a frustum of cone (circular) with a closed flat top and open bottom. It is lowered from the outside air into saltwater in an upright position. Ysaltwater = 10.2 kN/m³ h 1.5 m closed top- 2 m 4 m 4m

Water at 30°C flow in a Venturi meter with the velocity 3 m/s. The tube diameter at station 1 is D1 = 30 cm and the pressure- gauge reading P1 = 30 kPa. The whole arrangement is horizontal at 2 km altitude. Neglect losses. The cavitation is about to appear at station 2, determine: P1 = 30 kPa At 2 km altitude Di = 30 cm V= 3 m/s Flow Water at 30°C 1.Atmospheric pressure at 2 km altitude (kPa) 2.The pressure at station 2 (kPa) 3.The diameter at station 2 (m)

1.) Given: Discharge thru the siphon = 280 lit/sec; siphon diam. = 200mm %3D %3D b = 2m; elev. at C = 20m Req'd: a) elev. at A; b) pressure at B in КРа. mm 0 siphon C Reservoir C

An upward flow of oil (mass density 800 kg/m3, dynamic viscosity 0.8 kg/m-s) takes place under laminar conditions in an inclined pipe of 0.1 m diameter as shown in the figure. The pressures at sections 1 and 2 are measured as p, = 435 kN/m2 and p, = 200 kN/m2. %3D 5 m --- ---- 45° 6.3 The discharge in the pipe is equal to (a) 0.100 m/s (c) 0.144 m/s (b) 0.127 m/s (d) 0.161 m3/s

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Assuming that all pipes has a friction factor of 0.021, determine the elevation at surface of reservoir A.

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An upward flow of oil (mass density 800 kg/m³, dynamic viscosity 0.8 kg/m-s) takes place under laminar conditions in an inclined pipe of 0.1 m diameter as shown in the figure. The pressures at sections 1 and 2 are measured as p₁ = 435 kN/m² and p₂ = 200 kN/m². 45° __*-~ -5m- The discharge in the pipe is equal to