ne equivalent permeability of four beds in series, having equal formar thickness under the following conditions for a linear system? Bed Length of bed, ft Horizontal permeability, millidrey 1 250 25 250 50 3. 500 100 4 1000 200

3. A fine (thin) ring with a radius 50 mm is being pulled from the surface of water. If the ring has a mass of 1.0 g and the contact angle is 75, determine the force, P, needed to pull the ring free from the surface. 50 mm 75°

What is the tool used to measure the equilibrium height of the liquid inside the capillary tube in the experiment on the determination of surface tension of a liquid by the capillary rise method? * O Compass Ruler O Vernier caliper O Tape measure

Calculate the volumes of hydration products for a mix contain (100 mg) cement and (30 ml) of water, with the hydration process occur inside tube (closed) and there is no movement to or from the tube?

A 0.6 mm diameter glass tube is inserted into water in a cup. Determine the capillary rise ofwater in the tube. Assume the contact angle is zero while the surface tension of water is 0.073N/m. The density of water is 1000 kg/m3

An acetal polymer block is fixed to the rigid plates at its top and bottom surfaces. If the top plate displaces 5 mm horizontally when it is subjected to a horizontal force P = 2 kN, determine the shear modulus of the polymer. The width of the block is 100 mm. Assume that the polymer is linearly elastic and use small angle %3D analysis.

4

Q1) By using dimensional analysis concept, express the wall shear stress for the pipe flow which is depending likely on the distance from the beginning of the pipe, pipe diameter, pipe wall roughness, fluid velocity, density and viscosity?

5. The following table shows data from a flow study of a PS melt at 210°C in a capillary rheometer. a. Make a plot of log shear stress versus log shear rate. b. Calculate the value of the viscosity at 1 and 135 s', respectively. Shear Stress ,(10° dyn/cm') Shear Rate, 3.5 1.0 12.0 5.0 20.0 12.2 33.0 25.0 40.0 52.5 60.0 135.0 69.8 400.0

For the edge dislocation, cite the relationship between the direction of the applied shear stress and the direction of dislocation line motion. O Neither parallel nor perpendicular O Parallel O Perpendicular