Engineering Thermodynamics The polytropic index (n) is given by log (v1/ v2)/ log (p1/p2) log [(p1v1)/(p2v2)] log (p1p2)/log (v1v2) log (p2/ p1)/log (v1/ v2) log (v1/ v2)/ log (p1/p2) log [(p1v1)/(p2v2)] log (p1p2)/log (v1v2) log (p2/ p1)/log (v1/ v2) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The gas constant (R) is equal to the __________ of two specific heats. Product Ratio Difference Sum Product Ratio Difference Sum ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A gas is compressed in a cylinder by a movable piston to a volume one half its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be 30 Nm 300 Nm 3000 Nm 300,000 Nm 30 Nm 300 Nm 3000 Nm 300,000 Nm ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because in Otto cycle Maximum temperature is higher Heat rejection is lower Expansion and compression are isentropic Combustion is at constant volume Maximum temperature is higher Heat rejection is lower Expansion and compression are isentropic Combustion is at constant volume ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The thermodynamic difference between a Rankine cycle working with saturated steam and the Carnot cycle is that Rankine cycle is hypothetical A Rankine cycle receives heat at two places Heat is supplied to water at temperature below the maximum temperature of the cycle Carnot cycle can't work with saturated steam Rankine cycle is hypothetical A Rankine cycle receives heat at two places Heat is supplied to water at temperature below the maximum temperature of the cycle Carnot cycle can't work with saturated steam ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Temperature of a gas is produced due to Its heating value Repulsion of molecules Kinetic energy of molecules Surface tension of molecules Its heating value Repulsion of molecules Kinetic energy of molecules Surface tension of molecules ANSWER DOWNLOAD EXAMIANS APP
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