A concrete cooling water tank with dimensions 7 m by 12 m by 0.5 m deep, is filled to the brim with 85oC water (β = 3.7 x 10-4 oC-1). Assuming the tank size remains constant, how far will the level drop by the time the water has been cooled to 25oC?

A tank used to collect rainwater having diameter of 4m .the depth of the tank varies linearly from 3.5m at its center to 3m along the perimeter.the local atmospheric pressure is 1bar ,the acceleration of gravity is 9.8mS square and the density of the rainwater is 987.1kg/m3. When the tank is filled with water,determine a) the pressure in kPa at the bottom center of the tank b)the total force in kN,acting on the bottom of the tank

1.      A glass tube 5 ft long and 1 in. in diameter with one end closed is inserted vertically, with the open end down, into a tank of water until the open end is submerged to a depth of 4 ft. If the barometric pressure is 14.3 lb per sq. in., and neglecting vapour pressure, how high will water rise in the tube?

Water injection is carried out in a 50 ft thick, 300 ft wide, and 400 ft long grid block (much like a rectangular core, called grid block in reservoir simulation terminology), simulating CaSino reservoir in China, which has a porosity of 33% and absolute permeability of 500 mD. The injection of water is carried out at a residual oil saturation of 20%. The pressure drop across the grid block is 5 atm. The relative permeability of water (krw) at residual oil saturation of 20% or water saturation of 80% is 0.67. Water viscosity is 1.0 cP. Calculate the water flow rate in barrels/day.

... Elevation 15.25m Elevation 14 m water Elevation 10.7m 30° An orifice in a 30 degree plane from horizontal as shown has its vena contracta at elevation 10.7m. If the water surface in the tank is at elevation 15.25m and the peak of the jet is at elevation 14m. Find the coefficient of velocity. 0.983 B) No answer among the choices 0.952 D 0.964 0.975

A cylindrical tank having a diameter of 1.5 m and a height of 4 m is open at one end and close at the other end. It is placed below the water surface with its open end down. How deep below the water surface should the tank be placed if the depth of the water inside the tank is 1.8 m?       a.6.0 cm b.5.90cm c.6.25cm d.7.0cm show your complete solution

A pressure gage 6m above the bottom of the tank containing a liquidreads 90kPa. Another gage height 4m reads 103 kPa. Determine thespecific weight of the liquid.

The pressure in the air space above the surface of oil (SG = 0.78) in a closed tank is 125 KPa absolute. Determine the gage pressure 2m below the oil surface. A) 28.39 KPa 38.98 KPa (C) No Answer among the choices D 8.37 KPa E 43.30 KPa

Water at 70°F passes through 0.75-in-internal diameter copper tubes at a rate of 0.4 lbm/s. Determine the pumping power per ft of pipe length required to maintain this flow at the specified rate. Take the density and dynamic viscosity of water at 70°F as p = 62.30 lbm/ft3 and μ = 6.556x10-4 lbm/ft-s. The roughness of copper tubing is 5x10-6 ft. (Round the final answer to four decimal places.) The pumping power per ft of pipe length required to maintain this flow at the specified rate is 0.0318 W (per foot length).

Given a three-pipe system, the total pressure drop is PA - PB = 150,000 Pa, and the elevation drop is ZA ZB = 5 m. The pipe data are: Pipe 1 2 3 L, m 100 150 80 A. O 0.00283 m³/s O 0.00146 m³/s The fluid is water (density 1000 kg/m³ and kinematic viscosity 1.02x10-6 m²/s). Calculate the flow rate Q in m³/h through the system. (3 O 0.00675 m³/s O 0.00834 m³/s d, cm 8 6 4 1 €, mm 0.24 0.12 0.20 2 eld 0.003 0.002 0.005 • B