An open cylindrical container 800 mm in diameter and 1.50 meter high contains fresh concrete (s= 2.0) at a depth of 1.20 meters. What will be the amount of concrete spilled in liters when rotated accidentally at the rate of 120 rpm?
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- Problem 3 Consider the casting of a pig-like art piece using ductile iron. Dimensions are shown below. Using the NRL method, design the riser needed. Hint: Simplify the shapes to make calculations easier. 100 mm Smm 60mm > + Smm Sem 5mm 30mm 100 mm (0 미 30mm Problem 4 In Problem 3, if the solidification time of the riser alone is around 30 secs, what would be the estimated solidification time of the casting alone? Hint: The same mold is used and it has a homogeneous composition.1. Determine the values of all the reactions. 10lb Solution: 3/ 3' 1.5 1.5 6lb/ft 2' 3′ 15Ib ہلے 1' 4lb/ft 5' 8lb/ftThe result No of blows(N) and water content in % (w) of liquid limit tests are given as follows: Trial 1 N= 48 w-32.1 Trial 2 N-38 w-351, Trial 3 N= 29 w=40.7; Trial 4 N=20 w=46.1; Trial 5 N=15 w=52.8. Determine the liquid limit. O a. 52 O b. 34 O c. 20 O d. 43
- A 10 cm diameter solid cylinder of height 10 cm weighing 0.40 kg is immersed in a liquid (800 kg/cm^3) contained in a tall metal cylinder having a diameter of 13 cm. Before immersion, the liquid was 8 cm deep. At what level from the bottom will the solid cylinder float? W, = 0.40kg %3D 10cme tank New L.S. Original L.S F,1. A block, 1ft square and 9 inches deep floats on a stratified liquid composed of a 6in layer of water above a layer of mercury. Determine the weight of the block if the position of its bottom is 1 inch below the mercury. 2. At point A in a pipeline carrying water, the diameter is 1m, the pressure is 98kPa and the velocity is 1m/s. At point B, 2m lower than A, the diameter is 0.5m and the pressure is 20kPa. Determine the direction of flow. Show detailed computation. 3. What is the hydraulic radius of the channel shown: 1.5m 1.5h 4. wty A vertical right-angled triangular surface has a vertex in the free surface of a liquid. Find the force on one side. 1.5m 1:2m92 Calaulate the flow rate of the each pipe is given belowi O.120m/s (4) K2=2 (2) Ku=4 (3) (5) Es=5 0.040 m/s O-030 ms The initial value of the flow rate for pipes ore gren as Ri=0.07 /s 92=0.05 m/s 93= 0.01 m% Q4=0,01ms and Q5=0,03 m3
- PROBLEM 2 The pipe bend shown is in a horizontal plane. Oil with a specific gravity of 0.86 enters the reducing bend at section A with a velocity of 3.2 m/s and a pressure of 150 kPa. Neglecting head loss, determine (a) The velocity at section B, V (m/s) (b) The pressure at section B, ps (kPa) (с) Fмх (N) (d) FMY (N) (е) Fpx (N) (f) Fpy (N) (g) The x-component of the reaction by the bend, FRx (N) and (h) The y-component of the reaction by the bend FRY (N). de = 100 mm B- da = 150 mm 30°A certain llquid flows In a 10mm dlameter smooth plpe that Is 20 m long. The total head lost in the pipe is 30 m and the Reynolds number is 1800. a. What is the friction factor f? b. What is the value of the kinematic viscosity of the liquid? c. What is the discharge?Oil having sp. gr. of 0.9 and viscosity v 0.0002 m2/s flows upward through an inclined pipe as shown. Determine the flow rate. Ans. 7.64 L/s 6 cm diameter P2 250 kPa 40 Pi 350 kPa
- gle.com/u/0/c/MZE4MZY1MDM1NJ15/a/MzQ5Nzg10TcyOTM0/details jpg. Z, = ? Yol = 8.82 kN/m3 Z = 2. = 130 m 60 m- 7 m 130 m If oil flows from the upper to lower reservoir at a velocity 1.58 m/s in the 15 cm diameter smooth pipe, what is the elevation of the oil surface in the upper reservoir? Activat Go to SetHeavy fuel oil flows from A to B through 3000 ft of horizantal 6-in steel pipe. The pressure at A is 155 psi and at B is 5.0 psi. The kinematic viscosity is 0.00444 ft?/s and the specific gravity is 0.918. Is the flow really laminar? Prove by solving the Reynolds Number.A permeameter setup is shown in Figure 1. A cylindrical mold 4” in diameter is filled with silt to H1 = 0.20 ft, whose coefficient of permeability k1 = 2.36 × 10^-4 ft/min. A second coaxial mold (negligible thickness) is placed on top of the first mold whose inside diameter d = 1.5” and whose H2 = 0.30 ft and is filled with silt, but the annular ring outside the small tube is filled with sand whose coefficient of permeability is k2 = 2.7 × 10^-3 ft/min. The test set-up is a permeameter of constant head and maintained at a level h = 1.25 ft above the level of the outlet. Find the ff: • Equivalent coefficient of permeability (in/s) • Total flow of water (ft^3/day) • Total amount of water (in^3) percolated after 75 min