Engineering Thermodynamics An adiabatic process is one in which All of these The temperature of the gas changes The change in internal energy is equal to the mechanical work done No heat enters or leaves the gas All of these The temperature of the gas changes The change in internal energy is equal to the mechanical work done No heat enters or leaves the gas ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The following cycle is used for air craft refrigeration Joule cycle Reversed Brayton cycle Carnot cycle Brayton cycle Joule cycle Reversed Brayton cycle Carnot cycle Brayton cycle ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics When gas is heated at constant pressure, the heat supplied is utilized in Doing some external work Increasing the internal energy of gas None of these Increasing the internal energy of gas and also for doing some external work Doing some external work Increasing the internal energy of gas None of these Increasing the internal energy of gas and also for doing some external work ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which is the incorrect statement about Carnot cycle? All of these It is used as the alternate standard of comparison of all heat engines All the heat engines are based on Carnot cycle It provides concept of maximising work output between the two temperature limits All of these It is used as the alternate standard of comparison of all heat engines All the heat engines are based on Carnot cycle It provides concept of maximising work output between the two temperature limits ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics For a perfect gas, according to Boyle’s law (where P = Absolute pressure, V = Volume and T = Absolute temperature) P/T = constant, if v is kept constant P v = constant, if T is kept constant V/T = constant, if p is kept constant T/P = constant, if v is kept constant P/T = constant, if v is kept constant P v = constant, if T is kept constant V/T = constant, if p is kept constant T/P = constant, if v is kept constant ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of the Carnot cycle is (where T1 and T2 = Highest and lowest temperature during the cycle) (T1/T2) - 1 1 + (T2/T1) 1 - (T2/T1) 1 - (T1/T2) (T1/T2) - 1 1 + (T2/T1) 1 - (T2/T1) 1 - (T1/T2) ANSWER DOWNLOAD EXAMIANS APP
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