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A 380 cc single-cylinder two-stroke motorcycle engine is operating at 5500 rpm. The engine has a bore of 82 mm and a stroke of 72 mm. Performance testing gives a bmep od 6.81 bar, bsfc of 0.49 kg/kW hr, and delivery ratio of 0.748. a) What is the fuel to air ratio? (b) What is the air flow rate (kg/s)?
a disk cam rotates at a constant speed of 300 rpm and drives a translating roller follower through a rise of 1.5 inches
a furnace is shaped like along semicylindrical duct of diameter 15 ft. the base and the dome of the furnace have
locate the initial and final states on a sketch of the T-v digram. determine the mass of vapor present at the initial and final state, each in kg.
a particular road vehicle weighs 4000 lb. using the quarter-car model determine a suitable value for the suspension
Find the volume rate of ?ow in AB, the velocity in BC, the velocity in CD and the diameter of CE.
Evaluate the maximum theoretical power that can be developed by the turbine, in kW, and the corresponding exit temperature.
large wind turbines with blade span diameters of over 100 m are available for electric power generation. consider a
a piston - cylinder device contains 1.0 kg of steam at 320.0 degree c and 1 mpa. steam is cooled at a constant pressure
cast aluminum products often contain gas porosity and shrinkage cavities which can undermine the integrity of these
An 8-kg plunger is released from rest in the position shown and is stopped by two nested springs; the constant of the outer spring is k1 = 4 kN/m and the constant of the inner spring is k2 = 12 kN/m. If the plunger is released from the height
a heat exchanger is to be designed to condense 1100 kghr of steam ay 150 kpa. for this purpose cooling water at 50
Calculate the fraction of atom sites that are vacant for copper (Cu) at a temperature of 729°C (1002 K). Assume energy for vacancy formation of 0.90 eV/atom. Repeat this calculation at room temperature (298 K).
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