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Two concentric helical compression springs made of steel and having the same length when loaded and when unloaded are used to used to support a static load of 3 kN. The outer spring has D =50 mm, d = 9mm, and N =5; the inner spring D =30 mm, d=5 mm, and N =10. Determine the deflection and the maximum stress in each spring.
fluid is flowing horizontally at 100gpm from a 2in diameter pipe to a 1in diameter pipe. if the pressure is 10 psi at
a pelton wheel is used to produce hydroelectric power. the average radius of the wheel is 1.83 m and the jet velocity
a engineer designs a heat engine using flat-plate solar collectors. the collectors deliver aeat at 70 degrees c and
determine the electrical power input to the pump. the density of water is 1kg/l.
a balloon behaves so the pressure is p c2v13 c2 100 kpam. the balloon is blown up with air from a starting volume of
water flows in a horizontal pipe with entrance velocity 2.5ms is turning 90 degrees and leaves the pipe. pipe diameter
A piston-cylinder device initially contains 50L of liquid water at 40 degrees C and 200kPa. Heat is transferred to the water at constant pressure until entire liquid is vaporized.
a gas turbine can assume an ideal brayton cycle has a pressure ratio of 10. it is connected to an electric generator
calculate the overall efficiency the heat rate mw and the total fuel rate kgs of a combined-cycle power plant 1 if no
a flat-plate collector 4m2 in area is tested during the night to measure the overall heat loss coefficient. water at
an axial turbine of high hub-tip ratio runs with zero degree reaction and peak efficiency at design flow and speed. the
Describe the machinability evaluation criteria, is it a quantitative or qualitative evaluation and describe the High Speed Machining of Steel/Iron or Aluminium
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