1.A 3105 Aluminum alloy wire is to be drawn to give a 1-mm diameter wire having a yield strength of 20,000 PSI. assume that there is no friction in the wire drawing process

Determine if the as-drawn wire will break during the process

2.A 0.02wt% C steel is to be carburized at 1200°C in 4 hrs with a point 0.6mm beneath the surface reaching 0.45wt%C. calculate the carbon content required at the surface of the steel.

What is the concentration of bod in the jackson river before : The James Rives flows in from the East at 320 m^3/min and joins the Jackson River flowing at 605 m^3/min just outside the town of Charlotte, NC. The concentration of BOD in the James River is 14 mg/L |

Perform multiple regression with real financial data : Perform multiple regression with real financial data - estimate the Fama - French 3-factor model for a list of twenty stocks and interpret the regression output. |

Determine the magnitude direction and location on the beam : A first order reaction occurs in a PFR at the rate of 2.1 hr^-1. The reactor volume is 1400L and flow is 15 gpm. If the influent concentration is 200 mg/L, then what is the effluent concentration? |

Calculate the mass of the green house gas and ozone : Calculate the mass of the green house gas and ozone depleting substance CFC-11 (chemical Formula = CCl3F) in the atmosphere. Use units of GtC (giga tonnes carbon). Production of this substance is now banned and mixing ratios are slowly decreasing wit.. |

Determine if the as-drawn wire will break during the process : A 0.02wt% C steel is to be carburized at 1200°C in 4 hrs with a point 0.6mm beneath the surface reaching 0.45wt%C. calculate the carbon content required at the surface of the steel. |

Downstream response to imposed flow transformation : Write a paragraph ( 1 paragraph for i, ii, iii, & iv together) summarizing the following Holistic Methodologies Methods used to analyze environmental flow requirements.) |

Terminal docks include casual workers who are hired tempor : In an Less-than-Truckload trucking company, terminal docks include casual workers who are hired temporarily to account for peak loads. At the Omah |

Determine the coliform concentration at the beach : An ocean outfall diffuser that discharges treated wastewater into the Atlantic Ocean is 5,000 m from a public beach. The wastewater contains 10^5 coliform bacteria per milliliter. |

Determine the change in its length and the change in its : The acrylic plastic rod is 200mm long and 15mm in diameter. If an axial load of 300N is applied to it, determine the change in its length and the change in its diameter. Ep = 2.70 GPa, Vp = 0.4. |

## What shear resistance is to be expected in direct shear testSamples of a dry sand are to be tasted in a direct shear test and a triaxial test. In the triaxial test, the sample fails when the major and minor principal stresses are 140 psi and 40 psi, respectively. |

## Calculate equivalent pipe size and flow in the pipeThe first pipe of 0.4-m diameter is 500 m long, the second pipe 600 m long, size 0.3 m, and the last pipe is 500 m long of diameter 0.2 m. If the elevation difference between two reservoirs is 30 m, calculate equivalent pipe size and flow in the p.. |

## Question in structure analysisDetermine axial force and Max bending - Question in structure analysis |

## What is the pressure drop per unit length along the tubeIt is known that the velocity distribution for steady, laminar flowin circular tubes (either horizontal od vertical) isparabolic. Consider a 10 -mm- diameter horizontal tubethrough with ethyl alcohol is flowing with a steady mean velocity.15 m/s. |

## Specify the radius in mm to the centerline of a bendSpecify the radius in mm to the centerline of a 90 degree bend in a 1 in type k copper tube to acheive the minimum energy loss. For such a bend carrying 250 L/min of water at 80'C, compute the energy loss. |

## Estimate the mean and standard deviation of timeThe probability density function, f(t), of the time in hours between storms during the summer in Miami is estimated as f(t) = .014e^(-.014t) if x > 0, f(t) = 0 if x is less than or equal to 0 where t is the time interval between storms in hours. |

## What would the spindle diameter need to be in order to moveThe crane hoists a uniformly distributed load C. the two identical motors at A an power through gearboxes operating at maximum output speed of 100 rpm.the load is lifted by winding cable onto spindles attached to the output shaft of each gear box. |

## How much will bar deform if it is released from the framworkA 24-in.-long copper bar with a yield strength of 30,000 psi is heated to 120°C and immediately fastened securely to a rigid framework. The coefficient of thermal expansion for copper is 16.6x10-6 (1/oC). |

## What is the maximum acceleration from restThe base engine develops 200 ft-lb of torque, and a modified version of the engine develops 240 ft-lb of torque. If the overall gear reduction ratio is 8 to 1, what is the maximum acceleration from rest (in ft/sec^2) for. |

## Determine the elevation and stationing of the low pointA 1600-ft-long sag vertical curve (equal tangent) has a PVC at station 120+00 and elevation of 1500 ft. The initial grade is -3.5% and the final grade is +6.5%. Determine the elevation and stationing of the low point, PVI and PVT. |

## What would be the new minimum downstream doA single source of BOD causes an oxygen sag curve with a minimum downstream DO equal to 6.0 mg/L. If the BOD of the waste is doubled (without increasing the waste flow rate), what would be the new minimum downstream DO |

## Find flow rate in pipe whose water surface elevations differA 110 f t long, 5 in in diameter (f = 0:033) connects two reservoir whose water surface elevations differ by 12 f t. Compute flow rate in pipe. |

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