On a plane within a saturated soil mass, the total normal stress is 185 kPa, the pore-water pressure is 98 kPa and the shear stress is 42 kPa. The soil undergoes shear failure and reaches critical state on this plane when the pore-water pressure is increased to 120 kPa while keeping the total normal and shear stresses constant. What is the critical state angle of friction of the soil?

## Determine the force p that will cause the barthe rigid bar abcd is supported by a pin at B and restrained by identical steel bars at C and D, each of area 250mm^2. if the temperature is increased by 80C, determine the force P that will cause the bar at c to be stress-free. |

## Determine how long should the basin beAssume Stoke's Law holds true for the following question. You are asked to desgin a settling basin. Flow rates are 16 million gallons/day. The basin must be 4m deep, and 4m wide. Particle size ranges from 0.2-50 mm in diameter. |

## How much does the water in the cloud weigh in poundsClouds can weigh thousands of pounds due to their liquid water content. Often this content is measured g/m^3. Assume that a cumulus cloud occupies a volume of one cubic km, and its liquid water content is 0.2g/m^3. |

## What speed limit will be recommend at section of highwayA section of a road has a superelevation of .6% and a curve of 600ft radius. What speed limit will you recommend at this section of the highway |

## 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. |

## Determine the exit velocity and the ratio of the exit areaAir (an ideal gas) enters an adiabatic nozzle at 3 bar and 38 C and exits at 1 bar and -0.78 C. The process is steady. If the velocity at the inlet is 1 m/s, determine the exit velocity and the ratio of the exit area to the inlet area. |

## Determine the common velocity just after the collisionThe bus B has a weight of 15,000 lb and is traveling to the right at 5ft/s. Meanwhile a 3,000 lb car A is traveling at 4ft/s to the left. If the vehicles crash head-on and become entagled, determine their common velocity just after the collision. |

## What type of exercise takes place in a classroomWhat type of exercise takes place in a classroom setting arranged to look like an emergency operations center or in an actual emergency operations center, and involves simulation using written, telephone, and radio messaging. |

## To what maximum angle, measured from verticalTo what maximum angle, measured from vertical, does the rod (with the attached ball of clay) rotate? |

## Determine what is the minimum turbulent flow rateAir at 80oC and a pressure of approximately 1350 kPa abs flows in a 20-mm-diameter tube. What is the minimum turbulent flow rate |

## Find the lateral area of the frustuma regular hexagonal pyramid has an upper base edge of 16 ft. and a lower base edge of 28 ft. if the volume of the frustum is 18041 ft^3., find the lateral area of the frustum. |

## Elevation of the road at stationGiven the following data for a vertical curve of a road; G1=-2.5%, G2=+5.5% and station of PVI=250+50.At station 252+50, the vertical curve must intersect an existing road at elevation 48.48ft. the elevation on the tangent section at station 256+5.. |

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