Explain the Water to Cement ratio effect on the Compressive Strength of Concrete Cylinders. What is the normal range of the Water to Cement ratio utilized in a concrete mix design?

Prepare a short report that technically and economically evaluates the differences between ZLD (zero-liquid-discharge) and MLD (minimum-liquid discharge) methods, which are also application areas in desalination facilities.

In desalination plants using RO membrane modules. Prepare a short report stating the chemicals used for pre-treatment, post-treatment and membrane cleaning (CIP, clean-in-place) stages and their intended use.

Assume you have been designated as a building designer. Answer the following questions:

• What type of building are you designing?
• What low-energy buildings strategies would you use (identify a minimum of four strategies)?
• How do you give priority to some of these strategies (identify a minimum of three criteria for priority setting)?
• What is your reasoning for each strategy?

Is it possible to obtain the maximum values of the transverse shear stress and flexural stress without knowing the location of the maximum shear and moment? Explain your answer.

FISA ACT QUESTION: Technology has added some complexity to line drawing when it comes to monitoring phone calls. What are some of those complexities, and have scales tipped in favor of individual rights, or societal needs?

1. TEST 1: Identification.   Use your own words.

2. Reservoir
3. Minor   losses
4. Friction factor
5. Yield
6. Elevation
7. Discharge
8. Velocity of flow
9. Manning’s formula – just write the formula
10. Chezy’s formula - just write the formula
11. hf

A closed, rigid tank contains water initially at 250 °F with a quality of 0.4. The tank is heated until the water reaches 290 °F. Find the initial and final pressure, in lbf/in2 . Sketch the process on P-υ and T-υ diagrams (be sure to include the vapor dome, constant temperature and pressure lines, number your states, and indicate the process direction with an arrow). Thermodynamic

3. Calculate the load carrying capacity and percentage of reinforcement for a short rectangular column of
cross section dimension 280 mm x 500 mm is reinforced with 4 bars of 25 mm diameter, 2 bars of 20
mm diameter and 2 bars of 12 mm diameter. Use M30 grade concrete and Fe 500 grade steel. Also
design a 4 legged ties necessary for this section.

A food processing plant wants to re-purpose a pump they used to pressurize the cold water system (35° F) to pressurize the hot water system (180° F). In every regard the cool and hot water systems are identical - only the temperature of the fluid is different. What is the correct impact on the net positive suction head available (NPSHa)?

What is the importance of structural elements in engineering operations?

A completely mixed activated sludge plant is not performing particularly well. You calculate a F:M of 1.5 mg/mg·day^-1. What would you recommend to solve the problem?

Determine the allowable axial compressive load for a 25-foot long A992 W8X40 structural steel column using the AISC procedure as indicated in your textbook. The bottom of the column is fixed, an the top is pinned. Use the material properties and dimensions as indicated in the appendices of your textbook.