SSC JE Mechanical Engineering 2015
Instructions
For the following questions answer them individually
Question 171
The Otto cycle thermal efficiency, with usual notation, is given as, where r is compression ratio and $$\gamma$$ is the adiabatic index
Question 177
The centre of gravity of the volume of the liquid displaced by an immersed body is called
Question 178
The ratio of actual measured head to head imparted to fluid vby impeller for a centrifugal pump is known as
Question 179
The process used for relieveing the internal stresses previously set up in the metal and for increasing the machinability of steel, is
Question 180
The process of making hollow casting of desired thickness by permanent mould without the use of cores is known as
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