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Air pressure in the cylinder is increased by exerting forces P = 2 kN on the two pistons, each having a radius of 45 mm. If the cylinder has a wall thickness of 2 mm, determine the state of stress in the wall of the cylinder.
The cable that supports the bar has an effective modulus and area of 14GPa and 77mm^2 , respectively. Let the lengths be 600mm and 300mm , and the angle 50 degrees . If the permitted additional elongation of the cable is 0.20mm
The weights on the same axles when the truck is empty and leaving the power plant are 10 kips, 12 kips, and 8 kips, respectively. A two lane road is to be designed to serve the power plant and to last for a period of 10 years. a) What is the equiv..
Starting with an initial backsight setting of 0°00'00" for each angle, the readings after the first and second turnings of angle x were 49°36'24" and 99°13'00" and the readings after the first and second turnings of angle y ere 310°23'28" and 260°..
Consider a prevailing lapse rate that has these temperatures: ground=21C, 500m= 20C, 600m= 19C, 1000m= 20C.If a parcel of air is released at 500m and at 20C, would it tend to sink, rise or remain where it is
An 180 m long 100 mm diameter compressed air pipeline is to be run from a stationary compressor to an air-track drill which requires a flow of 780 l/sec. The pipeline contains 2 large radius bends (R=2d) ,and 4 half closed gate valves.
The pressure inside the cylinder is 50 atm and temperature is 298o K. Provide your engineering judgement (with calculations) to justify or not justify the shipment of the cylinder.
A 5-m-diameter parachute of a new design is to be used to transporta load from flight altitude to the ground with an average verticalspeed of 3 m/s. The total weight of the load and theparachute is 200 N. Determine the approximate dragcoefficient for..
What is the maximum length of trench that can be excavated by hand economically rather than by a trenching machine. It will cost $900.00 to transport a trenching machine to the job and back to the storage yard.
According to Archimede's principle, the buoyancy force actingon that object that is partially immersed in a fluid is equal tothe weight that is displaced by the portion of the object that issubmerged.
The "U"-tube manometer containing mercury of density 13600 kg/cubic meters is used to measure the pressure drop along a horizontal pipe.
Name two methods used in analysing structural members in civil engineering
A rectangular well-mixed aeration lagoon is 60m long, 5m wide, and 2m deep. It receives 400 cubic meters/day of wastewater with a BOD5 of 336mg BOD5/L for treatment. The biodegradation rate constants for the wastewater are yield coefficient = 0.8mg V..
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