Engineering Thermodynamics Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because in Otto cycle Heat rejection is lower 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of Carnot cycle is maximum for Petrol engine Steam engine Reversible engine Gas engine Petrol engine Steam engine Reversible engine Gas engine ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following is the correct statement of the second law of thermodynamics? It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work All of these It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work All of these It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In an isothermal process There is no change in enthalpy There is no change in temperature There is no change in internal energy All of the listed here There is no change in enthalpy There is no change in temperature There is no change in internal energy All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to Regnault's law, the specific heat at constant pressure (cp) and specific heat at constant volume (cv) _________ with the change in pressure and temperature of the gas. Both (A) and (B) Change Do not change None of these Both (A) and (B) Change Do not change None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The ratio of root mean square velocity to average velocity of gas molecules at a particular temperature is 0.086 1.086 4.086 1.086 0.086 1.086 4.086 1.086 ANSWER DOWNLOAD EXAMIANS APP
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