1.A circular tube has an outside diameter of 150mm and an inside diameter of 100mm. If the allowable shearing stress is 55MPa, what is the allowable torque

2.If the BOD5 of waste is 327 mg/l, what sample size (in percent) should be selected to yield an oxygen consumption of 4.8 mg/l?

3.A 200,000 m^3 clay embarkment is to be constructed at an optimum water content of 16%. It is expected that 95% saturation will be attained. Calculate the volume of soil that will be needed if the void ratio of the fill material is 1.3

4.A -4% grade and a 0% grade meeting at sta. 24 + 40 and elevation 2421.54 ft are joined by an 800-ft vertical curve. The curve passes under an overpass at sta. 25+00. If the lowest elevation of the overpass is 2439.93 ft, calculate the available clearance.

Suppose the utility encourages its customers to replace : Suppose a utility generates electricity with a 36 percent efficient coal-fired power plant emitting the legal limit of 0.6 lb of SO2 per million Btus of heat into the plant. Suppose the utility encourages its customers to replace their |

What is the speed of the train relative to : The train is travelling at 0.8 m/s i relative to a man on the side of the tracks. What is the speed of the bug as seen by the man at the side of the tracks? What is the speed of the train relative to (or as seen by) the bug? |

Determine the batch weights needed for all materials for : Determine the batch weights needed for all materials for a 1yd^3 batch yielding an f'c= 2500 psi given the following information. |

What is the largest number of phases that can coexist at : Considering both temperature and pressure to be variables, what is the largest number of phases that can coexist at equilibrium in a binary alloy? |

Calculate the volume of soil that will be needed if the void : A -4% grade and a 0% grade meeting at sta. 24 + 40 and elevation 2421.54 ft are joined by an 800-ft vertical curve. The curve passes under an overpass at sta. 25+00. If the lowest elevation of the overpass is 2439.93 ft, calculate the available clear.. |

Determine the stations and elevations of the bvc and evc : A 300 N force is applied at A as shown. Determine (a) the moment of the 300 N force about D, (b) the magnitude and sense of the horizontal force applied at C that creates the same moment about D, (c) the smallest force applied at C that creates the s.. |

What size pipe should we use to obtain a flow : Two large water reservoirs are connected by 8,000 ft of schedule 40 steel pipe. The level of one reservoir is 500 ft above the level of the other |

Determine the minimum length of a crest vertical curve if : Determine the minimum length of a crest vertical curve if the grades are +4% and -2%, Design speed is 70 mi/h. State assumptions used in solving this problem. |

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. |

## Determine the minimum horizontal force necessary for manDetermine the minimum horizontal force necessary for 200 lb man to scale crevice (using his feet and back). The coefficient of static friction between his shoes and his back against the wall is 0.4. |

## Calculate the difference in heat loss through the roofYour family cabin now has a roof that is rectangular, 60 feet by 20 feet, and is covered by 2 inch thick hardwood siding and tapped wood shingles. You propose adding 2 inches of cellulose fiber insulation under the hardwood. |

## How fast is the water level rising in the reservoir per dayA reservoir with a length of 20 km and width of 3 km has a flood inflow of 1000 m^3/s. (a) If exit flow is restricted to 500 m^3/s, how fast is the water level rising in the reservoir per day |

## The dynamic magnification of response comparedDetennine (1) the required shaker frequency to cause "resonance" and (2) the dynamic magnification ofresponse compared with static response for that level of damping. |

## Determine how many molecules of h20 is the systemA piston cylinder contains 0.8kg of steam (water vapor) at 300 deg C and 1MPa absolute. The steam is cooled at constant pressure until half of the mass condenses. |

## What is the stress in the lowermost rockThe Washington Monument is 169 m tall. What is the stress in the lowermost rock if it is made of Georgia granite? |

## What will be the bending stiffness of the bridge in a caseA bridge is subjected to a load of 10,000 kN at its mid span, yielding a displacement of 5 millimetres at that location. What will be the bending stiffness of the bridge in this case (make sure the unit is given) |

## What is the maximum distance away that the navigation lightsWhat is the maximum distance away that the navigation lights can still be seen by an observer standing at the shoreline The observer's eye height is 5'6" and the uppermost navigation light is 168 above the water. |

## Thermal conductivities of aluminum and copperThe aluminum end and the copper end are maintained at temperatures of 50°C and 260°C, respectively. The thermal conductivities of aluminum and copper are 205 and 385 W/m · K, respectively. The temperature of the aluminum-copper junction in the rod.. |

## 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 power that must be supplied to the pump atCrude oil flows through a level section of the Alaskan pipeline at a rate of 1.6 million barrels per day (1 barrels=42 US gallons) the pipe inside diameter is 48 inch and its roughness is equivalent to galvanized iron. |

## Define what is meant by the term compile-time bindingDefine what is meant by the term compile-time binding and list two other terms that are also used to describe it. Explain why compile-time binding can present problems when implementing polymorphism in a program. |

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