1.Carbon dioxide flows in a 2-in by 3-in duct at a pressure of 46 psi and a temperature of 80 degrees Fahreneit. If the atmospheric pressure is 13.8 psia and the flow velocity is 10 fps, calculate the weight flow rate.

2.The velocity of a liquid (s=1.26) in a 3-in pipeline is 2.4 fps. Calculate the rate of flow in cfs, gal/min, slugs/sec, and lb/sec.

3.A sound wave is observed to travel through a liquid with a speed of 1500 m/s. The specific gravity of the liquid is 1.5. Determine the bulk modulus of elasticity, Ev, for this fluid.

4.Name the three factors that influence the degree to which martensite is formed throughout the cross section of a steel specimen. For each, tell how the extent of martensite formation may be increased.

Gregory and lulu clifden tax problem : Gregory and lulu clifden tax problem - Gregory R. and Lulu B. Clifden live with their family at the Rock Glen House Bed & Breakfast, which Gregory operates. |

Explain why a clay once having been fired at an elevated : The thermal conductivity of a single-crystal ceramic specimen is slightly greater than a polycrystalline one of the same material. Why is this so? |

Do any of these three wells exceed the 44.3 ppm level : Nitrate concentrations exceeding 44.3 mg NO3-/L are a concern in drinking water due to the infant disease, methemoglobinemia. Nitrate concentrations are often recorded in units |

Are the elemental semiconductors silicon and germanium : Electromagnetic radiation may be treated from the classical or the quantum-mechanical perspectives. Briefly compare these two viewpoints. |

How the extent of marten site formation may be increased : Name the three factors that influence the degree to which martensite is formed throughout the cross section of a steel specimen. For each, tell how the extent of martensite formation may be increased. |

What is meant by the concept of parens patriae : What is meant by the concept of parens patriae? |

What must be the density of the gas at that section : Gas flows at a steady rate in a 120-mm-diameter pipe that enlarges to a 180-mm-diameter pipe. At a certain section of the 120-mm pipe the density of the gas is 165 kg/m^3 and the velocity is 15 m/s. |

Find the stress in the steel and the stress in the concrete : A 14-in. square concrete post is 6ft tall and reinforced by nine 3/4" diameter steel rods. Assume that the materials are high-strength concrete and ASTM-A36 structural steel. |

What is the difference in water levels between reservoirs : A wrought iron water line connecting two reservoirs at 20°C has a length of 1500 m, a diameter of 75 cm, two elbows (90º, long-radius, flanged), a fully open gate valve, and a reentrant pipe entrance. |

## Calculate the discharge through the flumeA long throated flume is built in a rectangular 1 m widechannel having a throat width of 0.5m. The upstream head is 0.6 m.Assume a Cd of 1.0. |

## Determine what is the pressure at point aWater flows through a 4-cm pipe, wrought iron, horizontal pipeline 50-m long from point A to B, and contains a fully opened gate valve and two elbows (R/D = 4). |

## How far does the platform float above the water surfaceA floating platform is supported at each corner by a hollow sealed cylinder 1 m in diameter, the platform itself weighs 25kN in air and each cylinder weighs 1.2kN per meter of length. |

## Design flow of cfs and design the channel sectionAn earthen channel will be excavated into sandy soil for which Vmax = 4.0 ft/sec, n=0.022 and the recommended m=3. The channel will have a bottom slope of 0.0011 and accommodate a design flow of 303 cfs. Design (size) the channel section. |

## What is the amount of gas in the container in units of gramsn ideal gas in 1.50 gallon container is at a temperature of 125 degrees Celsius and of 2.5 atmospheres. If the gas is oxygen (formula: O_2, molecular weight = 32 grams per mole), what is the amount of gas in the container in units of grams |

## What would be the void ratio for a total pressure of 800 knWhen the total pressure acting at midheight of a compressible clay layer is 100 kN/m^2, the corresponding void ratio is 1.09. When the total pressure increases to 400 kN/m^2, the corresponding void ratio decreases to 0.89. |

## Compute required weight of coarse aggregate per cubic yardA concrete mix with a 3-inch slump, w/c ratio of 0.50, and sand with a fineness modulus of 2.4 contains 1700 lb/yd^3 of coarse aggregate. Compute the required weight of coarse aggregate per cubic yard. |

## Calculate the overflow rate detention time and weir loadingA fine sand has a hydraulic condutivity of 3.5 x 10^-5 m/s a hydraulic gradient of 0.00141, and a porosity of 45 percent. Detrmine the Darcy velocity and the averge linear velocity |

## Determine storage 1hour later if the average rates are givenThe storage in a rectangular section irrigation channel is 20,000 m2 at a given time. Determine the storage 1 hour later if the average rates of inflow and outflow during the hour are 23 and 18 m3/s respectively. |

## Determine the solids retention timeUsing the following assumptions, determine the solids retentiontime, the cell wastage flow rate, and the return sludge flow ratefor the Jambalaya shrimp processing plant WWTP. |

## Estimate population for year 2011 assuming population growthIn 1800 an undeveloped country had a population of 10 million with birth and death rates of 60 and 52 per thousand per year. The situation continued until 1900, when the death rate instantaneously was reduced to 10 |

## Estimate the viscosity of water at 30 degree cThe dynamic viscosity of water at 20°C is 1.00 x 10-3 N-s/m2, and the viscosity at 40°C is 6.53 x 10-4 N-s/m2. Estimate the viscosity at 30°C. |

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