Engineering Thermodynamics The polytropic index (n) is given by log (p2/ p1)/log (v1/ v2) log (p1p2)/log (v1v2) log (v1/ v2)/ log (p1/p2) log [(p1v1)/(p2v2)] log (p2/ p1)/log (v1/ v2) log (p1p2)/log (v1v2) log (v1/ v2)/ log (p1/p2) log [(p1v1)/(p2v2)] ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics For a thermodynamic process to be reversible, the temperature difference between hot body and working substance should be Infinity Zero Minimum Maximum Infinity Zero Minimum Maximum ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The following cycle is used for air craft refrigeration Carnot cycle Reversed Brayton cycle Brayton cycle Joule cycle Carnot cycle Reversed Brayton cycle Brayton cycle Joule cycle ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics First law of thermodynamics Does not enable to determine change in entropy Enables to determine change in internal energy of the system All of these Provides relationship between heat, work and internal energy Does not enable to determine change in entropy Enables to determine change in internal energy of the system All of these Provides relationship between heat, work and internal energy ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The ratio of molar specific heats for mono-atomic gas is 1.87 1.67 1.4 1 1.87 1.67 1.4 1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The amount of heat generated per kg of fuel is known as Calorific value Higher calorific value Heat energy Lower calorific value Calorific value Higher calorific value Heat energy Lower calorific value ANSWER DOWNLOAD EXAMIANS APP
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