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Consider the reversible adiabatic flow of stream through a nozzle. Steam enters the nozzle at 1 Mpa and 300°C with a velocity of 30 m/s. The pressure of the steam at the nozzle exit is 0.3 Mpa. Determine the exit velocity of the nozzle. If the actual nozzle exit velocity is measured to be 500 m/s, find the entropy change of the steam.
a helical tension spring is made of 1.2 mm wire having a yield strengths of 1280 mpa tension and 740 mpa torsion. the
oxygen is diffusing in a mixture of oxygen-nitrogen at 1 std atm 25degc. concentration of oxygen at planes 2 mm apart
a gas-turbine power plant operates on the simple brayton cycle between the pressure limits of 100 and 800 kpa. air
a block with mass m10kg is projected up a rough incline angled at theta40degrees to ground with a speed of v5ms. just
determine the maximum velocity to which water can be accelerated by the nozzles before striking the turbine blades.
air at 80 kpa 300 k and 250 ms enters a diffuser at a rate of 2.5 kgs and leaves at 315 k. the exit area of the
an engineer has proposed that a simple ideal rankine cycle that uses refrigerant-134a be used to produce work with heat
question 1 a force of 750 n acts on point a in the x direction where the cables ab ac and ad are joined as shown in
a cartridge electrical heater is shaped as a cylinder of length l 200 mm and outer diameter d 20 mm. under normal
consider a 1.5m high and 2.4m wide double-pane window consisting of two 3mm thick layers of glass k 0.78 wm.k
describe possible methods that can be used to separate materials such as polymers, aluminium alloys and steels from one another.
the beam ab is subjected to the uniformly distributed load shown and to two unknown forces p and q. knowing that it has
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