Engineering Thermodynamics The polytropic index (n) is given by log [(p1v1)/(p2v2)] log (p2/ p1)/log (v1/ v2) log (v1/ v2)/ log (p1/p2) log (p1p2)/log (v1v2) log [(p1v1)/(p2v2)] log (p2/ p1)/log (v1/ v2) log (v1/ v2)/ log (p1/p2) log (p1p2)/log (v1v2) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Thermal power plant works on Otto cycle Joule cycle Carnot cycle Rankine cycle Otto cycle Joule cycle Carnot cycle Rankine cycle ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Compressed air coming out from a punctured football Becomes cooler Becomes hotter Remains at the same temperature May become hotter or cooler depending upon the humidity of the surrounding air Becomes cooler Becomes hotter Remains at the same temperature May become hotter or cooler depending upon the humidity of the surrounding air ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics If heat be exchanged in a reversible manner, which of the following property of the working substance will change accordingly Internal energy Temperature Entropy Enthalpy Internal energy Temperature Entropy Enthalpy ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Change in internal energy in a closed system is equal to heat transferred if the reversible process takes place at constant Pressure Temperature Volume Internal energy Pressure Temperature Volume Internal energy ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The thermal efficiency of an ideal gas turbine plant is given by (where r = Pressure ratio) 1 - rγ - 1 1 - (1/r) γ - 1/ γ rγ - 1 1 - (1/r) γ/γ - 1 1 - rγ - 1 1 - (1/r) γ - 1/ γ rγ - 1 1 - (1/r) γ/γ - 1 ANSWER DOWNLOAD EXAMIANS APP
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