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 Expansion and compression are isentropic Maximum temperature is higher Combustion is at constant volume Heat rejection is lower Expansion and compression are isentropic Maximum temperature is higher Combustion is at constant volume ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The condition for the reversibility of a cycle is The working parts of the engine must be friction free All of these The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process All the processes, taking place in the cycle of operation, must be extremely slow The working parts of the engine must be friction free All of these The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process All the processes, taking place in the cycle of operation, must be extremely slow ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to kinetic theory of gases, the velocity of molecules __________ with the increase in temperature. Remains constant None of these Decreases Increases Remains constant None of these Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Kelvin Planck's law deals with Conversion of heat into work Conversion of work into heat Conservation of work Conservation of heat Conversion of heat into work Conversion of work into heat Conservation of work Conservation of heat ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Stirling cycle consists of Two constant pressure and two isothermal processes Two constant volume and two isothermal processes One constant volume, one constant pressure and two isentropic processes Two constant volume and two isentropic processes Two constant pressure and two isothermal processes Two constant volume and two isothermal processes One constant volume, one constant pressure and two isentropic processes Two constant volume and two isentropic processes ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics If a system after undergoing a series of processes, returns to the initial state then Process is thermodynamically in equilibrium Sum of heat and work transfer will be zero Process is executed in closed system cycle Its entropy will change due to irreversibility Process is thermodynamically in equilibrium Sum of heat and work transfer will be zero Process is executed in closed system cycle Its entropy will change due to irreversibility ANSWER DOWNLOAD EXAMIANS APP
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