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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.
Consider a trapezoidal channel with a bottom width of 4 m, side slopes of 3:1 (H:V), and a bottom slope of 0.002 that carries 50 cms. The channel has a Manning's roughness of 0.034
Design the keys - Shear Keys: A solid circular shaft is to transmit 200 kN at 200 rpm. If the maximum shear stress is not to exceed 80 n/mm 2 design the shaft. Design the key
Constant Mesh Type Gear Box : Most of the gearboxes on motorcycles are "constant mesh". That means all the gears are constantly meshed with one another and are always spinning. T
Flow work: Flow work is energy possessed by the fluid by virtue of its pressure. Displacement Work: When piston moves in cylinder from position 1 to 2 with vo
BASIC PHYSICS
Example of Equilibrium: Express in terms of θ, β and W the force T necessary to hold weight in equilibrium as shown in the figure given below. Also derive an expression f
Machine and Tool Selection The quality of a product largely depends on the type of machine, the type of process, machining conditions and the right selection of tools. The cur
Determine Mean coil radius - close coiled helical spring: A close coiled helical spring contains a stiffness of 1 kN/m in compression to a maximum load of 50 N and a maximum
Find out their common velocity: An aeroplane weighing 40 kN horizontally moves with a velocity of 20 m/sec (72 kmph, that means 72 km per hour). A helicopter of weight 20 kN i
DERIVATION & ITS SIGNIFICANCE
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