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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.
Two identical rollers, each of weight W= 1000N are placed by an inclined plane and a vertical wall as shown below. Determine the reactions at the points of supports A, B, and C. Su
dy/dx=e^x-y+x^2e^-y
Q. Describe the Selection of elctrodes? The selection of a proper electrode for electric arc welding is very important to obtain a sound welded joint of proper strength. The va
Battery: Battery is a device that produces direct current (DC). The chemical energy of battery ingredients converts into electrical energy in the form of direct current. This is a
Principle of equilibrium: Sol.: Principle of equilibrium can be divided in to three main parts; (1) Two Force Principle: As the Resultant is zero when body is in equili
Contents of Cast Iron: Cast Iron or CI is prepared form melting pig iron in cupola furnace or in electric furnace. This furnace offers better quality. CI contains various
Q. Explain about Hardness testing? When indicated on equipment or vessel data sheets, hardness testing shall be performed as follows: a) Perform hardness tests at or near th
Determine the carbon content of steel: A hypoeutetoid steel which was cooled slowly from γ-state to room temperature was found to contain 10% eutectoid ferrite. Suppose no cha
what is hartnell governor
Definition of screw conveyor Screw conveyors belong to the conveyer with traction component. It depends on the shaft with spiral blades in hematic chute to make material move o
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