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An oil engine works on the Dual cycle, the heat liberated at consent pressure being twice that liberated at consent volume. The compression ratio of the engine is 8 and the expansion ratio is 5.3. But the compression and expansion process follows the law PV1.3 = C. The pressure and temp. at beginning of compression are 1 Bar and 27oC respectively. considering Cp =1.004 KJ/Kg oK and Cv =0.717 KJ/Kg oK for air, determine air standard efficiency and mean effective pressure.
(a) An engine uses 6.5 Kg of oil per hr of a calorific value 30,000 kJ / kg. If the B. P. of the engine is 22KW and mechanical efficiency 85%. Calculate (i) Brake thermal eff
Corner joint- The flush corner joint is designed primarily for welding sheet metal that is 12 gauge or thinner. It is restricted to lighter materials. The half-open corner join
Difference between path function and point function
Define O.R. and what are the applications in Industry ? A firm uses lathe, milling and Grinding machine to make two machine parts. The table below show the machining time requir
Motion of the boat: (i) A man having weighs 500 N and is in a boat weighing 1500 N which is free to move over a steady lake. If he begins running along the length of the boat
(a) Show following complex numbers in Rectangular forms : (i) 5e 0.927j (ii) 10e 4.068j (b) Show the periodic functions by Fourier series (Harmonic series).
minimum mass of air required for complete combustion of the HFO
Tension in the strings: Sol.: When weight is attached to string then it will be in tension. The diagrams are shown below to describe this particular concept.
Airlines like to overbook their flights (this is a vibrant area of research called yield management). It is estimated that 10% of the people who book their flight do not show up. H
Show that the force exerted by jet of water on a fixed semi-circular plate in the direction of jet when the jet strikes at the centre of the semi-circular plate is two times the fo
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