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An inventor claims that an engine produces 120 kw with a fuel consumption of 20 kg/h. The energy content of the fuel is 36,00 kJ/kg. The energy is received at a mean temperature of 500C and rejected at a mean temo of 50 C. Which laws of thermodynamics are violated?
A) First law only
B) Second law only
C)First and second laws
D)Neither first nor second laws
Two rectangular clarifiers(sedimentation basins), each 30 ft long, 15 ft wide, and 10ft deep, settle a combinedtotal of 0.40 mgd following alum coagulation. The effluent channelshave a total weir length of 60ft in each basin
on a specific westbound section of highway studies show that the speed-density relationship is u= uf [1-(k/kf)^3.5] It is known that the capacity is 4200 veh/h and the jam density is 210 veh/mi.
If a truck has a capacity of 24m^3 (Heaped) and 18m^3 (struck), with a total empty weight of 31600kg (truck), and needs to move soil at a density of 1850kg.m^3 (Bank) with a swell of 41%
A city with 28,000 percent population is planning solid waste program. Population growth in the city is estimated to be 2.2% annually and the planning will designed for 30 years, The dumping area is located 20km away from the city.
a simple beam with a pin support at A on the left side of my beam, and a roller connection 20 feet away on the far right side of the beam labeled C, with the midspan point (10 feet) labeled B.
A 2-ft diameter circular pipe has a Manning's n of 0.013 and a bed slope of 2.0 X 10^-3. What is the uniform flow rate in this pipe if it is completely full (Qf) in ft^3/s? What is the centerline uniform water depth (y0) in the channel if the flow, Q..
A gray silty clay (CL) is sampled from a depth of 12.5 feet. The "moist" soil was extruded ffrom a 6-inch high brass liner with an inside diameter of 2.83 inches and weighed 777 grams.
Traction and Total Resistance, Would you please help me with the following question: A 90 tonne rear dump truck travels on an 8% grade loose gravel road.
If the allowable shear stress in the 7/8" diameter bolt is 35 ksi, determine the allowable force F that may be applied.
You are to assume that seawater at 77oF will be used in the tank and the curved portion forms a quarter of a circle. The tank is open to the atmosphere. The overall height, h2, is 20ft deep. The radius of the curve, R, is 5ft. The width of the..
A falling-head permeability test was carried out on a clay soil of diameter 10 cm and length 15 cm. In 1 hour the head in the standpipe of diameter 5 mm dropped from 68 cm to 50.2 cm. Calculate the hydraulic conductivity of this clay.
A permeability test was run on a cylindrical soil sample with a length of 175 mm, and a diameter of 75 mm. After 90 seconds, discharge was 300 cm3 under constant head of 41 cm. The sample had a dry mass of 850 g and its ?s was 2.60 g/cm3. Calculate (..
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