A fluid of density rho flows steadily downward between the two vertical, infinite, parallel plates. The flow is fully developed and laminar. Make use of the Navier Stokes equation to determine the relationship between the discharge and the other parameters involved, for the case in which the change in pressure along the channel is zero.

## How many tanks of each type should the company produceA company produces two kinds of septic tanks: type A and type B. Each type B tank takes twice as long to produce as a type A tank. If it only produced type A tanks, the company has the time to produce a maximum of 2000 tanks per week. |

## Describe the reasons for enhancing drainage and situationDescribe the reasons for enhancing drainage and situation where it is required. Explain some of the detrimental effects of drainage. Describe the types of drainage system indicating suitability criteria. 200- 250 word limit |

## What volume of leachate is being added to the river each dayA landfill is located 500 km from a river whose surface elevation is 40 m lower than the ground elevation at the landfill. After several years it is discovered that leachate from the landfill, with a COD of 1300 mg/L, is leaking into the river. |

## What distance must be cleared from the inside edgedesign a horizontal curve with a 40-degree central angle ( delta = 40) for a two-lane road with 11-ft lanes. The design speed is 70 mi/h and superelevation is limited to 0.06 ft/ft. Give the radius, degree of curvature, and length of curve that yo.. |

## Foundation raft of water towerA circular rc girder for the foundation raft of water tower has dia 10m.the udl load transmittedby 8 coloumn on te girder being 300 kn/m.the width of the beam is 500 mm and the over depth. |

## Determine what ph is required to precipitate of ironwhat pH is required to precipitate all but 0.20 mg/L of iron from a raw water with an Fe 3+ concentration of 2.1 mg/L Assume the temperature is 25 C. The reaction isFe(OH)^3 = Fe + 3 OH^- and pKs= 38.57 |

## Design a bar screen for a peak average flowdesign a bar screen for a peak average flow of 0.46m3/s.you can consider reasonable assumptions. |

## How long will it take until the reading is degrees celsiusa thermometer reading 10 degrees Celsius is brought into a room whose temperature is 23 degrees Celsius. two minutes later the thermometer reading is 18 degrees Celsius. how long will it take until the reading is say 22.8 degrees Celsius |

## What return period must an engineer use in the designWhat return period must an engineer use in the design of a bridge opening for a 50% risk that flooding will occur at least once in two consecutive years? Repeat for a risk of 100%. |

## Determine the torsional buckling stressdetermine the torsional buckling stress for the compression member if the length is 4m and cross section is the form shown. the ends are restrained such that there are not free to warp.given A:5646mm2 Ix:42.63Mmm4 Iy:14067Mmm4 E:210kN/mm2 G:80kN/m.. |

## Factors of safety against sliding and against overturningDetermine the factors of safety against sliding and against overturning, and also the soil pressure at the heel and toe. Assume hydrostatic uplift varies uniformly from full hydrostatic head at the heel of the dam to zero at the toe. consider 1m l.. |

## Force required to hold the pipeA 0.3-m diameter pipeline terminates in a nozzle of outlet diameter = 0.15 m. When water flows through this pipe at a rate of 0.25 m3/s, the force required to hold the pipe (N) is most nearly. |

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