Engineering Thermodynamics Temperature of a gas is produced due to Kinetic energy of molecules Its heating value Repulsion of molecules Surface tension of molecules Kinetic energy of molecules Its heating value Repulsion of molecules Surface tension of molecules ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Otto cycle consists of Two constant volume and two isothermal processes Two constant pressure and two isentropic processes One constant pressure, one constant volume and two isentropic processes Two constant volume and two isentropic processes Two constant volume and two isothermal processes Two constant pressure and two isentropic processes One constant pressure, one constant volume and two isentropic processes Two constant volume and two isentropic processes 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 Combustion is at constant volume Expansion and compression are isentropic Heat rejection is lower Maximum temperature is higher Combustion is at constant volume Expansion and compression are isentropic Heat rejection is lower ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Isochoric process is one in which No mechanical work is done by the system All parameters remain constant Free expansion takes place Very little mechanical work is done by the system No mechanical work is done by the system All parameters remain constant Free expansion takes place Very little mechanical work is done by the system ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The entropy __________ in an irreversible cyclic process. Decreases Remains constant Increases None of these Decreases Remains constant Increases None of these 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 - (T1/T2) 1 - (T2/T1) 1 + (T2/T1) (T1/T2) - 1 1 - (T1/T2) 1 - (T2/T1) 1 + (T2/T1) ANSWER DOWNLOAD EXAMIANS APP
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