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determine the nominal cross-sectional dimensions for a Douglas fir larch No. 1 grade beam of least weight that supports a total uniformly distributed load of 12 kip on a simple thirty-two foot span considering loading in shear and bending and indicate the governing condition.
Water is to be transported at a rate of 60,000 gallons/min in uniform flow in an open channel whose surface are lined with clay tile. The bottom slope is 0.0014. Determine the dimensions of the best cross section
A photograph is taken of a transverse wave travelling along a length of rope. At this instant the shape of the wave is described by y = (2 m) sin ((0.8 rad.m-1)x+0.8 rad). The speed of the wave is 2 m/s. Calculate the distance between two successi..
Determine the dimensions of the best hydraulic trapezoidal concrete channel section to convey water at a rate of 2200 gal per min on a channel slope of 0.015 m/m.
Tall buildings can develop a significant difference in pressure between the inside and the outside of the building. Air lock entrances are used at the ground level so the pressure at the ground floor is not the same as atmospheric pressure.
A radar device is installed at a location on the roadside to measure instantaneous speeds of vehicles passing that location. The initial four vehicles' speeds are listed. Calculate the space-mean speed of these four vehicles.
An ethanol plant distills alcohol from corn. The distiller processes 2.0 t/h of feed containing 15% alcohol and 82% water; the rest is inert material. The bottoms (waste) produced is 85% of feed and contains 94% water, 3.5% alcohol, and 2.5% inert..
You have a contaminated air stream containing 1000 ppmV of toluene and you decided to incinerate to a DRE of 99.9%. You are using butane as fuel to reach the temperature and consider the lean toluene has no heating value.
What is the effective stress 25 feet deep if the specific weight of the dry soil (dry unit weight) is 120 pcf and the water table is 12 feet deep
A 7 lb particle at rest is subjected to the action of its weight and forces F1= (2i+6j-2tk)lb, F2=(t^2i -4tj-1k) lb, and F3 =(-2ti) lb, where t is in seconds. the particle starts at the origin (0,0,0)
A closed rigid tank contains 2kg of saturated water vapor initially at temperature of 433K. Heat transfer occurs from the system and the pressure drops to 150kPa. Determine the amount of heat loss by the system.
The influent flow is 380 Lpcd and the influent BOD5 is 200 mg/L. Pertinent data are: Primary clarifier removes 33% of the influent BOD5, and the state regulatory agency allows a volumetric loading of 0.48 kg BOD5 /(m3.day). Determine the reactor b..
A cast iron water main 14m long of 600 mm inside diameter and 30 mm wall thickness runs full of water and is supported at its ends. Calculate the maximum stress in the metal if density of cast iron is 7200 kg/m and that of water is 1000 kgm.
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